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Merge pull request #2517 from oltaco/techo-card 

Add support for LilyGo T-Echo Card (and tiny-ui!)
pull/2601/head
ripplebiz 2 weeks ago
committed by GitHub
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bfdceae16e efaf95d685
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12 changed files with 1804 additions and 0 deletions
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  1. 137
      examples/companion_radio/ui-tiny/ScrollingStatusBar.h
  2. 819
      examples/companion_radio/ui-tiny/UITask.cpp
  3. 109
      examples/companion_radio/ui-tiny/UITask.h
  4. 104
      examples/companion_radio/ui-tiny/u8g2_icons.h
  5. 127
      src/helpers/ui/U8g2Display.h
  6. 97
      variants/lilygo_techo_card/TechoCardBoard.cpp
  7. 36
      variants/lilygo_techo_card/TechoCardBoard.h
  8. 119
      variants/lilygo_techo_card/platformio.ini
  9. 38
      variants/lilygo_techo_card/target.cpp
  10. 29
      variants/lilygo_techo_card/target.h
  11. 45
      variants/lilygo_techo_card/variant.cpp
  12. 144
      variants/lilygo_techo_card/variant.h

137
examples/companion_radio/ui-tiny/ScrollingStatusBar.h
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#pragma once
#include <helpers/ui/DisplayDriver.h>
#ifndef STATUS_BAR_SCROLL_MS
#define STATUS_BAR_SCROLL_MS 80
#endif
#ifndef STATUS_BAR_SEPARATOR
#define STATUS_BAR_SEPARATOR " | "
#endif
#ifndef STATUS_BAR_UPDATE_MS
#define STATUS_BAR_UPDATE_MS 2000 // rebuild status string every 2s
#endif
class ScrollingStatusBar {
char _status[160];
int _text_width;
int _scroll_x;
int _display_width;
unsigned long _next_scroll;
unsigned long _next_update;
bool _needs_redraw;
// cached state for change detection
char _last_name[32];
uint16_t _last_batt_mv;
bool _last_buzzer_quiet;
bool _last_gps_on;
bool _last_ble_on;
public:
ScrollingStatusBar() : _text_width(0), _scroll_x(0), _display_width(72),
_next_scroll(0), _next_update(0), _needs_redraw(true),
_last_batt_mv(0), _last_buzzer_quiet(false),
_last_gps_on(false), _last_ble_on(false) {
_status[0] = 0;
_last_name[0] = 0;
}
void begin(int display_width) {
_display_width = display_width;
_scroll_x = 0;
_next_scroll = 0;
_next_update = 0;
}
// Call periodically to update the status string content.
// Only rebuilds if values have changed or update interval has elapsed.
void update(DisplayDriver& display, const char* node_name, uint16_t batt_millivolts,
bool buzzer_quiet, bool gps_on, bool ble_on) {
bool changed = (batt_millivolts != _last_batt_mv)
|| (buzzer_quiet != _last_buzzer_quiet)
|| (gps_on != _last_gps_on)
|| (ble_on != _last_ble_on)
|| (strcmp(node_name, _last_name) != 0);
if (!changed) return;
// cache current values
strncpy(_last_name, node_name, sizeof(_last_name) - 1);
_last_name[sizeof(_last_name) - 1] = 0;
_last_batt_mv = batt_millivolts;
_last_buzzer_quiet = buzzer_quiet;
_last_gps_on = gps_on;
_last_ble_on = ble_on;
float volts = batt_millivolts / 1000.0f;
snprintf(_status, sizeof(_status),
"%s" STATUS_BAR_SEPARATOR
"%.2fV" STATUS_BAR_SEPARATOR
"BUZ:%s" STATUS_BAR_SEPARATOR
"GPS:%s" STATUS_BAR_SEPARATOR
"BLE:%s"
" - ", // trailing gap before the text loops
node_name,
volts,
buzzer_quiet ? "OFF" : "ON",
gps_on ? "ON" : "OFF",
ble_on ? "ON" : "OFF"
);
display.setTextSize(1);
_text_width = display.getTextWidth(_status);
_next_update = millis() + STATUS_BAR_UPDATE_MS;
_needs_redraw = true;
}
// Returns true if the status bar needs a redraw this frame.
bool needsRedraw() {
if (_text_width <= _display_width) return _needs_redraw; // static, no scrolling
return millis() >= _next_scroll;
}
// Render the status bar via DisplayDriver.
// U8g2 full-buffer mode clips to display bounds automatically,
// and the font height stays within STATUS_BAR_HEIGHT, so no
// explicit clip window is needed.
void render(DisplayDriver& display) {
if (_status[0] == 0) return;
display.setTextSize(1);
display.setColor(DisplayDriver::GREEN);
// if (_needs_redraw) {
// _text_width = display.getTextWidth(_status);
// }
// static text: no scrolling needed
if (_text_width <= _display_width) {
display.setCursor(0, 0);
display.print(_status);
_needs_redraw = false;
return;
}
int x = _scroll_x;
do {
display.setCursor(x, 0);
display.print(_status);
x += _text_width;
} while (x < _display_width);
// advance scroll position
_scroll_x--;
if (_scroll_x <= -_text_width) _scroll_x = 0;
_next_scroll = millis() + STATUS_BAR_SCROLL_MS;
_needs_redraw = false;
}
};

819
examples/companion_radio/ui-tiny/UITask.cpp
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#include "UITask.h"
#include <helpers/TxtDataHelpers.h>
#include "../MyMesh.h"
#include "target.h"
#include "u8g2_icons.h"
#ifdef WIFI_SSID
#include <WiFi.h>
#endif
#ifndef AUTO_OFF_MILLIS
#define AUTO_OFF_MILLIS 15000 // 15 seconds
#endif
#define BOOT_SCREEN_MILLIS 4000 // 4 seconds
#ifdef PIN_STATUS_LED
#define LED_ON_MILLIS 20
#define LED_ON_MSG_MILLIS 200
#define LED_CYCLE_MILLIS 4000
#endif
#define LONG_PRESS_MILLIS 1200
#ifndef UI_RECENT_LIST_SIZE
#define UI_RECENT_LIST_SIZE 4
#endif
#if UI_HAS_JOYSTICK
#define PRESS_LABEL "press Enter"
#else
#define PRESS_LABEL "long press"
#endif
class SplashScreen : public UIScreen {
UITask* _task;
unsigned long dismiss_after;
unsigned long version_after;
char _version_info[12];
public:
SplashScreen(UITask* task) : _task(task) {
// strip off dash and commit hash by changing dash to null terminator
// e.g: v1.2.3-abcdef -> v1.2.3
const char *ver = FIRMWARE_VERSION;
const char *dash = strchr(ver, '-');
int len = dash ? dash - ver : strlen(ver);
if (len >= sizeof(_version_info)) len = sizeof(_version_info) - 1;
memcpy(_version_info, ver, len);
_version_info[len] = 0;
version_after = millis() + BOOT_SCREEN_MILLIS / 2;
dismiss_after = millis() + BOOT_SCREEN_MILLIS;
}
int render(DisplayDriver& display) override {
if (millis() < version_after) {
// meshcore logo
display.setColor(DisplayDriver::BLUE);
int logoWidth = 72;
display.drawXbm(0, 0, meshcore_logo, 72, 36);
} else {
// meshcore website
const char* website = "meshcore.io";
display.setColor(DisplayDriver::LIGHT);
display.setTextSize(1);
uint16_t websiteWidth = display.getTextWidth(website);
display.setCursor((display.width() - websiteWidth) / 2, 9);
display.print(website);
// version info
display.setColor(DisplayDriver::LIGHT);
display.setTextSize(1);
display.drawTextCentered(display.width()/2, 18, _version_info);
display.setTextSize(1);
display.drawTextCentered(display.width()/2, 27, FIRMWARE_BUILD_DATE);
}
return 1000;
}
void poll() override {
if (millis() >= dismiss_after) {
_task->gotoHomeScreen();
}
}
};
class HomeScreen : public UIScreen {
enum HomePage {
FIRST,
RECENT,
RADIO,
BLUETOOTH,
ADVERT,
#if ENV_INCLUDE_GPS == 1
GPS,
#endif
#if UI_SENSORS_PAGE == 1
SENSORS,
#endif
SHUTDOWN,
Count // keep as last
};
UITask* _task;
mesh::RTCClock* _rtc;
SensorManager* _sensors;
NodePrefs* _node_prefs;
uint8_t _page;
bool _shutdown_init;
AdvertPath recent[UI_RECENT_LIST_SIZE];
CayenneLPP sensors_lpp;
int sensors_nb = 0;
bool sensors_scroll = false;
int sensors_scroll_offset = 0;
int next_sensors_refresh = 0;
void refresh_sensors() {
if (millis() > next_sensors_refresh) {
sensors_lpp.reset();
sensors_nb = 0;
sensors_lpp.addVoltage(TELEM_CHANNEL_SELF, (float)board.getBattMilliVolts() / 1000.0f);
sensors.querySensors(0xFF, sensors_lpp);
LPPReader reader (sensors_lpp.getBuffer(), sensors_lpp.getSize());
uint8_t channel, type;
while(reader.readHeader(channel, type)) {
reader.skipData(type);
sensors_nb ++;
}
sensors_scroll = sensors_nb > UI_RECENT_LIST_SIZE;
#if AUTO_OFF_MILLIS > 0
next_sensors_refresh = millis() + 5000; // refresh sensor values every 5 sec
#else
next_sensors_refresh = millis() + 60000; // refresh sensor values every 1 min
#endif
}
}
public:
HomeScreen(UITask* task, mesh::RTCClock* rtc, SensorManager* sensors, NodePrefs* node_prefs)
: _task(task), _rtc(rtc), _sensors(sensors), _node_prefs(node_prefs), _page(0),
_shutdown_init(false), sensors_lpp(200) { }
void poll() override {
if (_shutdown_init && !_task->isButtonPressed()) { // must wait for USR button to be released
_task->shutdown();
}
}
int render(DisplayDriver& display) override {
char tmp[80];
if (_page == HomePage::FIRST) {
// // node name
// display.setTextSize(1);
// display.setColor(DisplayDriver::GREEN);
// char filtered_name[sizeof(_node_prefs->node_name)];
// display.translateUTF8ToBlocks(filtered_name, _node_prefs->node_name, sizeof(filtered_name));
// display.setCursor(0, 0);
// display.print(filtered_name);
display.setColor(DisplayDriver::YELLOW);
display.setTextSize(2);
sprintf(tmp, "MSG: %d", _task->getMsgCount());
display.setCursor(0, 10);
display.print(tmp);
sprintf(tmp, "BATT: %.2fV", _task->getCachedBattMV() / 1000.0f);
display.setCursor(0, 19);
display.print(tmp);
#ifdef WIFI_SSID
IPAddress ip = WiFi.localIP();
snprintf(tmp, sizeof(tmp), "IP: %d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
display.setTextSize(1);
display.drawTextCentered(display.width() / 2, 54, tmp);
#endif
if (_task->hasConnection()) {
display.setColor(DisplayDriver::GREEN);
display.setTextSize(1);
display.drawTextCentered(display.width() / 2, display.height()-8, "< Connected >");
} else if (the_mesh.getBLEPin() != 0) { // BT pin
display.setColor(DisplayDriver::RED);
display.setTextSize(2);
sprintf(tmp, "Pin:%d", the_mesh.getBLEPin());
display.drawTextCentered(display.width() / 2, display.height()-8, tmp);
}
} else if (_page == HomePage::RECENT) {
the_mesh.getRecentlyHeard(recent, UI_RECENT_LIST_SIZE);
display.setColor(DisplayDriver::GREEN);
int y = 8;
for (int i = 0; i < UI_RECENT_LIST_SIZE; i++, y += 11) {
auto a = &recent[i];
if (a->name[0] == 0) continue; // empty slot
int secs = _rtc->getCurrentTime() - a->recv_timestamp;
if (secs < 60) {
sprintf(tmp, "%ds", secs);
} else if (secs < 60*60) {
sprintf(tmp, "%dm", secs / 60);
} else {
sprintf(tmp, "%dh", secs / (60*60));
}
int timestamp_width = display.getTextWidth(tmp);
int max_name_width = display.width() - timestamp_width - 1;
char filtered_recent_name[sizeof(a->name)];
display.translateUTF8ToBlocks(filtered_recent_name, a->name, sizeof(filtered_recent_name));
display.drawTextEllipsized(0, y, max_name_width, filtered_recent_name);
display.setCursor(display.width() - timestamp_width - 1, y);
display.print(tmp);
}
} else if (_page == HomePage::RADIO) {
display.setColor(DisplayDriver::YELLOW);
display.setTextSize(1);
// frequency and spreading factor
display.setCursor(0, 8);
sprintf(tmp, "FQ %06.3f", _node_prefs->freq);
display.print(tmp);
sprintf(tmp, "SF%d", _node_prefs->sf);
display.drawTextRightAlign(display.width(), 8, tmp);
// bandwidth and coding rate
display.setCursor(0, 17);
sprintf(tmp, "BW %03.2f", _node_prefs->bw);
display.print(tmp);
sprintf(tmp, "CR%d", _node_prefs->cr);
display.drawTextRightAlign(display.width(), 17, tmp);
// tx power and noise floor
display.setCursor(0, 26);
sprintf(tmp, "NF %ddB", radio_driver.getNoiseFloor());
display.print(tmp);
sprintf(tmp, "TX%d", _node_prefs->tx_power_dbm);
display.drawTextRightAlign(display.width(), 26, tmp);
} else if (_page == HomePage::BLUETOOTH) {
display.setColor(DisplayDriver::GREEN);
display.drawXbm((display.width() - 32) / 2, 8,
_task->isSerialEnabled() ? bluetooth_on : bluetooth_off,
32, 32);
display.setTextSize(1);
// display.drawTextCentered(display.width() / 2, 40 - 11, "toggle: " PRESS_LABEL);
} else if (_page == HomePage::ADVERT) {
display.setColor(DisplayDriver::GREEN);
display.drawXbm((display.width() - 32) / 2, 8, advert_icon, 32, 32);
// display.drawTextCentered(display.width() / 2, 40 - 11, "advert: " PRESS_LABEL);
#if ENV_INCLUDE_GPS == 1
} else if (_page == HomePage::GPS) {
LocationProvider* nmea = sensors.getLocationProvider();
char buf[50];
int y = 8;
bool gps_state = _task->getGPSState();
#ifdef PIN_GPS_SWITCH
bool hw_gps_state = digitalRead(PIN_GPS_SWITCH);
if (gps_state != hw_gps_state) {
strcpy(buf, gps_state ? "gps off(hw)" : "gps off(sw)");
} else {
strcpy(buf, gps_state ? "gps on" : "gps off");
}
#else
strcpy(buf, gps_state ? "gps on" : "gps off");
#endif
display.drawTextLeftAlign(0, y, buf);
if (nmea == NULL) {
// y = y + 8;
display.drawTextLeftAlign(0, y, "Can't access GPS");
} else {
if (!gps_state || !nmea->isValid()) {
strcpy(buf, "no fix");
} else {
sprintf(buf, "%d sat", nmea->satellitesCount());
}
display.drawTextRightAlign(display.width()-1, y, buf);
y = y + 8;
sprintf(buf, "lat %.4f",
nmea->getLatitude()/1000000.);
display.drawTextLeftAlign(0, y, buf);
y = y + 8;
sprintf(buf, "lon %.4f",
nmea->getLongitude()/1000000.);
display.drawTextLeftAlign(0, y, buf);
y = y + 8;
sprintf(buf, "alt %.1f", nmea->getAltitude()/1000.);
display.drawTextLeftAlign(0, y, buf);
}
#endif
#if UI_SENSORS_PAGE == 1
} else if (_page == HomePage::SENSORS) {
int y = 8;
refresh_sensors();
char buf[30];
char name[30];
LPPReader r(sensors_lpp.getBuffer(), sensors_lpp.getSize());
for (int i = 0; i < sensors_scroll_offset; i++) {
uint8_t channel, type;
r.readHeader(channel, type);
r.skipData(type);
}
for (int i = 0; i < (sensors_scroll?UI_RECENT_LIST_SIZE:sensors_nb); i++) {
uint8_t channel, type;
if (!r.readHeader(channel, type)) { // reached end, reset
r.reset();
r.readHeader(channel, type);
}
display.setCursor(0, y);
float v;
switch (type) {
case LPP_GPS: // GPS
float lat, lon, alt;
r.readGPS(lat, lon, alt);
strcpy(name, "gps"); sprintf(buf, "%.4f %.4f", lat, lon);
break;
case LPP_VOLTAGE:
r.readVoltage(v);
strcpy(name, "voltage"); sprintf(buf, "%6.2f", v);
break;
case LPP_CURRENT:
r.readCurrent(v);
strcpy(name, "current"); sprintf(buf, "%.3f", v);
break;
case LPP_TEMPERATURE:
r.readTemperature(v);
strcpy(name, "temperature"); sprintf(buf, "%.2f", v);
break;
case LPP_RELATIVE_HUMIDITY:
r.readRelativeHumidity(v);
strcpy(name, "humidity"); sprintf(buf, "%.2f", v);
break;
case LPP_BAROMETRIC_PRESSURE:
r.readPressure(v);
strcpy(name, "pressure"); sprintf(buf, "%.2f", v);
break;
case LPP_ALTITUDE:
r.readAltitude(v);
strcpy(name, "altitude"); sprintf(buf, "%.0f", v);
break;
case LPP_POWER:
r.readPower(v);
strcpy(name, "power"); sprintf(buf, "%6.2f", v);
break;
default:
r.skipData(type);
strcpy(name, "unk"); sprintf(buf, "");
}
display.setCursor(0, y);
display.print(name);
display.setCursor(
display.width()-display.getTextWidth(buf)-1, y
);
display.print(buf);
y = y + 12;
}
if (sensors_scroll) sensors_scroll_offset = (sensors_scroll_offset+1)%sensors_nb;
else sensors_scroll_offset = 0;
#endif
} else if (_page == HomePage::SHUTDOWN) {
display.setColor(DisplayDriver::GREEN);
display.setTextSize(1);
if (_shutdown_init) {
display.drawTextCentered(display.width() / 2, 20, "hibernating...");
} else {
display.drawXbm((display.width() - 32) / 2, 8, power_icon, 32, 32);
// display.drawTextCentered(display.width() / 2, 40 - 11, "hibernate:" PRESS_LABEL);
}
}
return 5000; // next render after 5000 ms
}
bool handleInput(char c) override {
if (c == KEY_LEFT || c == KEY_PREV) {
_page = (_page + HomePage::Count - 1) % HomePage::Count;
return true;
}
if (c == KEY_NEXT || c == KEY_RIGHT) {
_page = (_page + 1) % HomePage::Count;
if (_page == HomePage::RECENT) {
_task->showAlert("Recent adverts", 800);
}
return true;
}
if (c == KEY_ENTER && _page == HomePage::BLUETOOTH) {
if (_task->isSerialEnabled()) { // toggle Bluetooth on/off
_task->disableSerial();
} else {
_task->enableSerial();
}
return true;
}
if (c == KEY_ENTER && _page == HomePage::ADVERT) {
_task->notify(UIEventType::ack);
if (the_mesh.advert()) {
_task->showAlert("Advert sent!", 1000);
} else {
_task->showAlert("Advert failed..", 1000);
}
return true;
}
#if ENV_INCLUDE_GPS == 1
if (c == KEY_ENTER && _page == HomePage::GPS) {
_task->toggleGPS();
return true;
}
#endif
#if UI_SENSORS_PAGE == 1
if (c == KEY_ENTER && _page == HomePage::SENSORS) {
_task->toggleGPS();
next_sensors_refresh=0;
return true;
}
#endif
if (c == KEY_ENTER && _page == HomePage::SHUTDOWN) {
_shutdown_init = true; // need to wait for button to be released
return true;
}
return false;
}
};
void UITask::begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* node_prefs) {
_display = display;
_sensors = sensors;
_auto_off = millis() + AUTO_OFF_MILLIS;
_cached_batt_mv = getBattMilliVolts();
#if defined(PIN_USER_BTN)
user_btn.begin();
#endif
#if defined(PIN_USER_BTN_ANA)
analog_btn.begin();
#endif
_node_prefs = node_prefs;
if (_display != NULL) {
_display->turnOn();
}
_statusBar.begin(_display->width());
#ifdef PIN_BUZZER
buzzer.begin();
buzzer.quiet(_node_prefs->buzzer_quiet);
buzzer.startup();
#endif
#ifdef PIN_VIBRATION
vibration.begin();
#endif
ui_started_at = millis();
_alert_expiry = 0;
splash = new SplashScreen(this);
home = new HomeScreen(this, &rtc_clock, sensors, node_prefs);
setCurrScreen(splash);
}
void UITask::showAlert(const char* text, int duration_millis) {
strcpy(_alert, text);
_alert_expiry = millis() + duration_millis;
}
void UITask::notify(UIEventType t) {
#if defined(PIN_BUZZER)
switch(t){
case UIEventType::contactMessage:
// gemini's pick
buzzer.play("MsgRcv3:d=4,o=6,b=200:32e,32g,32b,16c7");
break;
case UIEventType::channelMessage:
buzzer.play("kerplop:d=16,o=6,b=120:32g#,32c#");
break;
case UIEventType::ack:
buzzer.play("ack:d=32,o=8,b=120:c");
break;
case UIEventType::roomMessage:
case UIEventType::newContactMessage:
case UIEventType::none:
default:
break;
}
#endif
#ifdef PIN_VIBRATION
// Trigger vibration for all UI events except none
if (t != UIEventType::none) {
vibration.trigger();
}
#endif
}
void UITask::msgRead(int msgcount) {
_msgcount = msgcount;
if (msgcount == 0) {
gotoHomeScreen();
}
}
void UITask::newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount) {
_msgcount = msgcount;
if (_display != NULL) {
if (!_display->isOn() && !hasConnection()) {
_display->turnOn();
}
if (_display->isOn()) {
_auto_off = millis() + AUTO_OFF_MILLIS; // extend the auto-off timer
_next_refresh = 100; // trigger refresh
}
}
}
void UITask::userLedHandler() {
#ifdef PIN_STATUS_LED
int cur_time = millis();
if (cur_time > next_led_change) {
if (led_state == 0) {
led_state = 1;
if (_msgcount > 0) {
last_led_increment = LED_ON_MSG_MILLIS;
} else {
last_led_increment = LED_ON_MILLIS;
}
next_led_change = cur_time + last_led_increment;
} else {
led_state = 0;
next_led_change = cur_time + LED_CYCLE_MILLIS - last_led_increment;
}
digitalWrite(PIN_STATUS_LED, led_state == LED_STATE_ON);
}
#endif
}
void UITask::setCurrScreen(UIScreen* c) {
curr = c;
_next_refresh = 100;
}
/*
hardware-agnostic pre-shutdown activity should be done here
*/
void UITask::shutdown(bool restart){
#ifdef PIN_BUZZER
/* note: we have a choice here -
we can do a blocking buzzer.loop() with non-deterministic consequences
or we can set a flag and delay the shutdown for a couple of seconds
while a non-blocking buzzer.loop() plays out in UITask::loop()
*/
buzzer.shutdown();
uint32_t buzzer_timer = millis(); // fail-safe shutdown
while (buzzer.isPlaying() && (millis() - 2500) < buzzer_timer)
buzzer.loop();
#endif // PIN_BUZZER
if (restart) {
_board->reboot();
} else {
_display->turnOff();
radio_driver.powerOff();
_board->powerOff();
}
}
bool UITask::isButtonPressed() const {
#ifdef PIN_USER_BTN
return user_btn.isPressed();
#else
return false;
#endif
}
void UITask::loop() {
char c = 0;
#if UI_HAS_JOYSTICK
int ev = user_btn.check();
if (ev == BUTTON_EVENT_CLICK) {
c = checkDisplayOn(KEY_ENTER);
} else if (ev == BUTTON_EVENT_LONG_PRESS) {
c = handleLongPress(KEY_ENTER); // REVISIT: could be mapped to different key code
}
ev = joystick_left.check();
if (ev == BUTTON_EVENT_CLICK) {
c = checkDisplayOn(KEY_LEFT);
} else if (ev == BUTTON_EVENT_LONG_PRESS) {
c = handleLongPress(KEY_LEFT);
}
ev = joystick_right.check();
if (ev == BUTTON_EVENT_CLICK) {
c = checkDisplayOn(KEY_RIGHT);
} else if (ev == BUTTON_EVENT_LONG_PRESS) {
c = handleLongPress(KEY_RIGHT);
}
ev = back_btn.check();
if (ev == BUTTON_EVENT_TRIPLE_CLICK) {
c = handleTripleClick(KEY_SELECT);
}
#elif defined(PIN_USER_BTN)
int ev = user_btn.check();
if (ev == BUTTON_EVENT_CLICK) {
c = checkDisplayOn(KEY_NEXT);
} else if (ev == BUTTON_EVENT_LONG_PRESS) {
c = handleLongPress(KEY_ENTER);
} else if (ev == BUTTON_EVENT_DOUBLE_CLICK) {
c = handleDoubleClick(KEY_PREV);
} else if (ev == BUTTON_EVENT_TRIPLE_CLICK) {
c = handleTripleClick(KEY_SELECT);
}
#endif
#if defined(PIN_USER_BTN_ANA)
if (abs(millis() - _analogue_pin_read_millis) > 10) {
int ev = analog_btn.check();
if (ev == BUTTON_EVENT_CLICK) {
c = checkDisplayOn(KEY_NEXT);
} else if (ev == BUTTON_EVENT_LONG_PRESS) {
c = handleLongPress(KEY_ENTER);
} else if (ev == BUTTON_EVENT_DOUBLE_CLICK) {
c = handleDoubleClick(KEY_PREV);
} else if (ev == BUTTON_EVENT_TRIPLE_CLICK) {
c = handleTripleClick(KEY_SELECT);
}
_analogue_pin_read_millis = millis();
}
#endif
#if defined(BACKLIGHT_BTN)
if (millis() > next_backlight_btn_check) {
bool touch_state = digitalRead(PIN_BUTTON2);
#if defined(DISP_BACKLIGHT)
digitalWrite(DISP_BACKLIGHT, !touch_state);
#elif defined(EXP_PIN_BACKLIGHT)
expander.digitalWrite(EXP_PIN_BACKLIGHT, !touch_state);
#endif
next_backlight_btn_check = millis() + 300;
}
#endif
#if defined(HAS_TORCH)
ev = back_btn.check();
if (ev == BUTTON_EVENT_CLICK && c == 0) {
c = checkDisplayOn(KEY_PREV);
} else if (ev == BUTTON_EVENT_DOUBLE_CLICK) {
board.toggleTorch();
c = 0;
}
#endif
if (c != 0 && curr) {
curr->handleInput(c);
_auto_off = millis() + AUTO_OFF_MILLIS; // extend auto-off timer
_next_refresh = 100; // trigger refresh
}
userLedHandler();
#ifdef PIN_BUZZER
if (buzzer.isPlaying()) buzzer.loop();
#endif
if (curr) curr->poll();
if (_display != NULL && _display->isOn()) {
_statusBar.update(*_display,
_node_prefs->node_name,
_cached_batt_mv,
isBuzzerQuiet(),
getGPSState(),
isSerialEnabled());
bool status_dirty = _statusBar.needsRedraw();
bool content_dirty = (millis() >= _next_refresh && curr);
if (status_dirty || content_dirty) {
_display->startFrame();
_statusBar.render(*_display);
if (curr) {
int delay_millis = curr->render(*_display);
if (content_dirty) {
_next_refresh = millis() + delay_millis;
}
}
if (millis() < _alert_expiry) { // render alert popup
_display->setTextSize(1);
int y = _display->height() / 3;
int p = _display->height() / 32;
_display->setColor(DisplayDriver::DARK);
_display->fillRect(p, y, _display->width() - p*2, y);
_display->setColor(DisplayDriver::LIGHT); // draw box border
_display->drawRect(p, y, _display->width() - p*2, y);
_display->drawTextCentered(_display->width() / 2, y + p*3, _alert);
_next_refresh = _alert_expiry; // will need refresh when alert is dismissed
}
_display->endFrame();
}
#if AUTO_OFF_MILLIS > 0
if (millis() > _auto_off) {
_display->turnOff();
}
#endif
}
#ifdef PIN_VIBRATION
vibration.loop();
#endif
#ifdef AUTO_SHUTDOWN_MILLIVOLTS
if (millis() > next_batt_chck) {
_cached_batt_mv = getBattMilliVolts();
if (_cached_batt_mv > 0 && _cached_batt_mv < AUTO_SHUTDOWN_MILLIVOLTS) {
shutdown();
}
next_batt_chck = millis() + 8000;
}
#else
if (_display != NULL && _display->isOn() && millis >= next_batt_chck) {
_cached_batt_mv = getBattMilliVolts();
next_batt_chck = millis() + 8000;
}
#endif
}
char UITask::checkDisplayOn(char c) {
if (_display != NULL) {
if (!_display->isOn()) {
_display->turnOn(); // turn display on and consume event
c = 0;
}
_auto_off = millis() + AUTO_OFF_MILLIS; // extend auto-off timer
_next_refresh = 0; // trigger refresh
}
return c;
}
char UITask::handleLongPress(char c) {
if (millis() - ui_started_at < 8000) { // long press in first 8 seconds since startup -> CLI/rescue
the_mesh.enterCLIRescue();
c = 0; // consume event
}
return c;
}
char UITask::handleDoubleClick(char c) {
MESH_DEBUG_PRINTLN("UITask: double click triggered");
checkDisplayOn(c);
return c;
}
char UITask::handleTripleClick(char c) {
MESH_DEBUG_PRINTLN("UITask: triple click triggered");
checkDisplayOn(c);
toggleBuzzer();
c = 0;
return c;
}
bool UITask::getGPSState() {
if (_sensors != NULL) {
int num = _sensors->getNumSettings();
for (int i = 0; i < num; i++) {
if (strcmp(_sensors->getSettingName(i), "gps") == 0) {
return !strcmp(_sensors->getSettingValue(i), "1");
}
}
}
return false;
}
void UITask::toggleGPS() {
if (_sensors != NULL) {
// toggle GPS on/off
int num = _sensors->getNumSettings();
for (int i = 0; i < num; i++) {
if (strcmp(_sensors->getSettingName(i), "gps") == 0) {
if (strcmp(_sensors->getSettingValue(i), "1") == 0) {
_sensors->setSettingValue("gps", "0");
_node_prefs->gps_enabled = 0;
notify(UIEventType::ack);
} else {
_sensors->setSettingValue("gps", "1");
_node_prefs->gps_enabled = 1;
notify(UIEventType::ack);
}
the_mesh.savePrefs();
showAlert(_node_prefs->gps_enabled ? "GPS: Enabled" : "GPS: Disabled", 800);
_next_refresh = 0;
break;
}
}
}
}
void UITask::toggleBuzzer() {
// Toggle buzzer quiet mode
#ifdef PIN_BUZZER
if (buzzer.isQuiet()) {
buzzer.quiet(false);
notify(UIEventType::ack);
} else {
buzzer.quiet(true);
}
_node_prefs->buzzer_quiet = buzzer.isQuiet();
the_mesh.savePrefs();
showAlert(buzzer.isQuiet() ? "Buzzer: OFF" : "Buzzer: ON", 800);
_next_refresh = 0; // trigger refresh
#endif
}

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examples/companion_radio/ui-tiny/UITask.h
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#pragma once
#include <MeshCore.h>
#include <helpers/ui/DisplayDriver.h>
#include <helpers/ui/UIScreen.h>
#include <helpers/SensorManager.h>
#include <helpers/BaseSerialInterface.h>
#include <Arduino.h>
#include <helpers/sensors/LPPDataHelpers.h>
#include "ScrollingStatusBar.h"
#ifndef LED_STATE_ON
#define LED_STATE_ON 1
#endif
#ifdef PIN_BUZZER
#include <helpers/ui/buzzer.h>
#endif
#ifdef PIN_VIBRATION
#include <helpers/ui/GenericVibration.h>
#endif
#include "../AbstractUITask.h"
#include "../NodePrefs.h"
class UITask : public AbstractUITask {
DisplayDriver* _display;
SensorManager* _sensors;
ScrollingStatusBar _statusBar;
#ifdef PIN_BUZZER
genericBuzzer buzzer;
#endif
#ifdef PIN_VIBRATION
GenericVibration vibration;
#endif
unsigned long _next_refresh, _auto_off;
NodePrefs* _node_prefs;
char _alert[80];
unsigned long _alert_expiry;
int _msgcount;
unsigned long ui_started_at, next_batt_chck;
int next_backlight_btn_check = 0;
uint16_t _cached_batt_mv;
#ifdef PIN_STATUS_LED
int led_state = 0;
int next_led_change = 0;
int last_led_increment = 0;
#endif
#ifdef PIN_USER_BTN_ANA
unsigned long _analogue_pin_read_millis = millis();
#endif
UIScreen* splash;
UIScreen* home;
// UIScreen* msg_preview;
UIScreen* curr;
void userLedHandler();
// Button action handlers
char checkDisplayOn(char c);
char handleLongPress(char c);
char handleDoubleClick(char c);
char handleTripleClick(char c);
void setCurrScreen(UIScreen* c);
public:
UITask(mesh::MainBoard* board, BaseSerialInterface* serial) : AbstractUITask(board, serial), _display(NULL), _sensors(NULL) {
next_batt_chck = _next_refresh = 0;
_cached_batt_mv = 0;
ui_started_at = 0;
curr = NULL;
}
void begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* node_prefs);
void gotoHomeScreen() { setCurrScreen(home); }
void showAlert(const char* text, int duration_millis);
int getMsgCount() const { return _msgcount; }
uint16_t getCachedBattMV() const { return _cached_batt_mv; }
bool hasDisplay() const { return _display != NULL; }
bool isButtonPressed() const;
bool isBuzzerQuiet() {
#ifdef PIN_BUZZER
return buzzer.isQuiet();
#else
return true;
#endif
}
void toggleBuzzer();
bool getGPSState();
void toggleGPS();
// from AbstractUITask
void msgRead(int msgcount) override;
void newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount) override;
void notify(UIEventType t = UIEventType::none) override;
void loop() override;
void shutdown(bool restart = false);
};

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examples/companion_radio/ui-tiny/u8g2_icons.h
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#pragma once
#include <stdint.h>
// icons converted for use with U8g2 which needs a different format of xbm data.
// 'meshcore', 72x36px
static const uint8_t meshcore_logo [] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xf0, 0x00, 0x3e, 0xfe, 0x3f, 0xfe, 0x3f, 0x1e, 0x78,
0xf8, 0x00, 0x1f, 0xff, 0x3f, 0xff, 0x3f, 0x1e, 0x78, 0xf8, 0x01, 0x1f,
0xff, 0x9f, 0xff, 0x1f, 0x0e, 0x78, 0xf8, 0x81, 0x1f, 0x0f, 0x80, 0x07,
0x00, 0x0f, 0x38, 0xf8, 0xc1, 0x1f, 0x0f, 0x80, 0x07, 0x00, 0x0f, 0x3c,
0xf8, 0xc3, 0x1f, 0xff, 0x87, 0xff, 0x07, 0xff, 0x3f, 0xf8, 0xe3, 0x1f,
0xff, 0x87, 0xff, 0x0f, 0xff, 0x3f, 0xfc, 0xf3, 0x8f, 0xff, 0x07, 0xff,
0x1f, 0xff, 0x3f, 0xfc, 0xf3, 0x8f, 0x07, 0x00, 0x00, 0x9e, 0x0f, 0x1e,
0xbc, 0x7f, 0x8f, 0x07, 0x00, 0x00, 0x9e, 0x07, 0x1e, 0x9c, 0x3f, 0x8f,
0x07, 0x00, 0x00, 0x9f, 0x07, 0x1e, 0x9c, 0x3f, 0x8f, 0xff, 0xcf, 0xff,
0x8f, 0x07, 0x1e, 0x1e, 0x1f, 0xc7, 0xff, 0xcf, 0xff, 0x87, 0x07, 0x1e,
0x1e, 0x0f, 0xc7, 0xff, 0xc7, 0xff, 0x83, 0x03, 0x0e, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xc0, 0xff, 0xf0, 0xff, 0xe0, 0xff, 0xc1, 0xff, 0x07, 0xf0, 0xff, 0xf8,
0xff, 0xf1, 0xff, 0xc3, 0xff, 0x07, 0xf0, 0xff, 0xfc, 0xff, 0xf1, 0xff,
0xc7, 0xff, 0x07, 0x78, 0x00, 0x3c, 0xe0, 0xf1, 0xc0, 0xe7, 0x01, 0x00,
0x78, 0x00, 0x1e, 0xe0, 0xf1, 0x80, 0xe7, 0x01, 0x00, 0x78, 0x00, 0x1e,
0xe0, 0xf1, 0xc0, 0xe3, 0x01, 0x00, 0x78, 0x00, 0x1e, 0xe0, 0x71, 0xc0,
0xe3, 0xff, 0x00, 0x3c, 0x00, 0x1e, 0xe0, 0xf9, 0xff, 0xe3, 0xff, 0x00,
0x3c, 0x00, 0x1e, 0xe0, 0xf8, 0xff, 0xf1, 0xff, 0x00, 0x3c, 0x00, 0x0e,
0xf0, 0xf8, 0xff, 0xf0, 0x00, 0x00, 0x3c, 0x00, 0x1f, 0xf0, 0x78, 0x7c,
0xf0, 0x00, 0x00, 0xfc, 0x3f, 0xff, 0xff, 0x38, 0xf8, 0xf0, 0xff, 0x01,
0xfc, 0x3f, 0xfe, 0x7f, 0x3c, 0xf0, 0xf0, 0xff, 0x01, 0xf8, 0x3f, 0xfe,
0x3f, 0x3c, 0xf0, 0xf1, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// bluetooth on icon, 32x32px, horizontal
static const uint8_t bluetooth_on[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x0c, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x00,
0x00, 0xfc, 0x01, 0x00, 0x00, 0xfc, 0x03, 0x00, 0x00, 0xdc, 0x07, 0x00,
0x0c, 0x1c, 0x1f, 0x00, 0x3c, 0x1c, 0x3e, 0x00, 0x7c, 0x1c, 0x3e, 0x00,
0xf8, 0x1d, 0x1f, 0x0e, 0xe0, 0x9f, 0x0f, 0x1e, 0xc0, 0xff, 0x03, 0x1e,
0x00, 0xff, 0x01, 0x3c, 0x00, 0xfe, 0xe0, 0x38, 0x00, 0x7e, 0xe0, 0x38,
0xc0, 0xff, 0x41, 0x38, 0xc0, 0xff, 0x03, 0x1e, 0xe0, 0xdf, 0x07, 0x1e,
0xf0, 0x1d, 0x1f, 0x0e, 0x7c, 0x1c, 0x3e, 0x00, 0x3c, 0x1c, 0x3e, 0x00,
0x1c, 0x1c, 0x1f, 0x00, 0x00, 0x9c, 0x0f, 0x00, 0x00, 0xfc, 0x03, 0x00,
0x00, 0xfc, 0x01, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00,
0x00, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
// bluetooth off icon, 32x32px, horizontal
static const uint8_t bluetooth_off[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x01, 0x00,
0x00, 0xc0, 0x03, 0x00, 0x00, 0xc0, 0x07, 0x00, 0x1c, 0xc0, 0x1f, 0x00,
0x3c, 0xc0, 0x3f, 0x00, 0x7c, 0xc0, 0xfd, 0x00, 0xf0, 0xc1, 0xf1, 0x01,
0xe0, 0xc3, 0xe1, 0x03, 0xc0, 0x0f, 0xc0, 0x03, 0x00, 0x1f, 0xf0, 0x01,
0x00, 0x3e, 0xf0, 0x00, 0x00, 0xf8, 0x70, 0x00, 0x00, 0xf0, 0x01, 0x00,
0x00, 0xe0, 0x07, 0x00, 0x00, 0xe0, 0x0f, 0x00, 0x00, 0xf0, 0x1f, 0x00,
0x00, 0xfc, 0x7d, 0x00, 0x00, 0xfe, 0xf9, 0x00, 0x00, 0xdf, 0xf1, 0x03,
0xc0, 0xc7, 0xc1, 0x07, 0xc0, 0xc3, 0xe1, 0x0f, 0xc0, 0xc1, 0xf1, 0x3f,
0x00, 0xc0, 0xfd, 0x3c, 0x00, 0xc0, 0x3f, 0x38, 0x00, 0xc0, 0x1f, 0x00,
0x00, 0xc0, 0x07, 0x00, 0x00, 0xc0, 0x03, 0x00, 0x00, 0xc0, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
// power icon, 32x32px, horizontal
static const uint8_t power_icon[] = {
0x00, 0x80, 0x01, 0x00, 0x00, 0xc0, 0x03, 0x00, 0x00, 0xc0, 0x03, 0x00,
0x00, 0xcc, 0x33, 0x00, 0x00, 0xcf, 0xf3, 0x00, 0x80, 0xcf, 0xf3, 0x01,
0xc0, 0xcf, 0xf3, 0x03, 0xe0, 0xcf, 0xf3, 0x07, 0xf0, 0xc7, 0xe3, 0x0f,
0xf8, 0xc3, 0xc3, 0x1f, 0xf8, 0xc1, 0x83, 0x1f, 0xfc, 0xc0, 0x03, 0x3f,
0x7c, 0xc0, 0x03, 0x3e, 0x7c, 0xc0, 0x03, 0x3e, 0x7e, 0x80, 0x01, 0x7e,
0x3e, 0x00, 0x00, 0x7c, 0x3e, 0x00, 0x00, 0x7c, 0x3e, 0x00, 0x00, 0x7c,
0x3e, 0x00, 0x00, 0x7c, 0x3e, 0x00, 0x00, 0x7c, 0x7c, 0x00, 0x00, 0x3e,
0x7c, 0x00, 0x00, 0x3e, 0xfc, 0x00, 0x00, 0x3f, 0xf8, 0x01, 0x80, 0x1f,
0xf8, 0x03, 0xc0, 0x1f, 0xf0, 0x07, 0xe0, 0x0f, 0xf0, 0x1f, 0xf8, 0x0f,
0xe0, 0xff, 0xff, 0x07, 0xc0, 0xff, 0xff, 0x03, 0x00, 0xff, 0xff, 0x00,
0x00, 0xfc, 0x3f, 0x00, 0x00, 0xf0, 0x0f, 0x00 };
// 'advert', 32x32px, horizontal
static const uint8_t advert_icon[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x0c,
0x38, 0x00, 0x00, 0x1c, 0x18, 0x00, 0x00, 0x18, 0x0c, 0x00, 0x00, 0x30,
0x0c, 0x06, 0x60, 0x30, 0x06, 0x07, 0xe0, 0x60, 0x86, 0x03, 0xc0, 0x61,
0x87, 0x81, 0x81, 0xe1, 0xc3, 0xe0, 0x07, 0xc3, 0xc3, 0xf0, 0x0f, 0xc3,
0xc3, 0xf0, 0x0f, 0xc3, 0xc3, 0xf0, 0x0f, 0xc3, 0xc3, 0xf0, 0x0f, 0xc3,
0xc3, 0xe0, 0x07, 0xc3, 0x83, 0xc1, 0x83, 0xc1, 0x86, 0x01, 0x80, 0x61,
0x06, 0x03, 0xc0, 0x60, 0x0e, 0x07, 0xe0, 0x70, 0x0c, 0x02, 0x40, 0x30,
0x1c, 0x00, 0x00, 0x38, 0x18, 0x00, 0x00, 0x18, 0x30, 0x00, 0x00, 0x0c,
0x20, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
// 'muted, 8x8px, horizontal
static const uint8_t muted_icon[] = {
0x20, 0x6a, 0xea, 0xe4, 0xe4, 0xea, 0x6a, 0x20 };

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src/helpers/ui/U8g2Display.h
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#pragma once
#include "DisplayDriver.h"
#include <U8g2lib.h>
#include <Wire.h>
#ifndef DISPLAY_ADDRESS
#define DISPLAY_ADDRESS 0x3C
#endif
#ifndef OLED_WIDTH
#define OLED_WIDTH 72
#endif
#ifndef OLED_HEIGHT
#define OLED_HEIGHT 40
#endif
class U8g2Display : public DisplayDriver {
// U8g2 constructor for SSD1306/SSD1315 72×40 panel — handles all
// GDDRAM column/page offsets, SETMULTIPLEX, SETDISPLAYOFFSET internally
U8G2_SSD1306_72X40_ER_F_HW_I2C _u8g2;
bool _isOn;
uint8_t _drawColor;
// Font metrics for current font (cached on setTextSize)
uint8_t _fontAscent;
uint8_t _fontHeight;
void applyFont(int sz) {
if (sz >= 2) {
_u8g2.setFont(u8g2_font_6x10_mr); // slightly larger font for better readability. TODO: more font sizes?
} else {
_u8g2.setFont(u8g2_font_5x7_mr);
}
_fontAscent = _u8g2.getAscent();
_fontHeight = _u8g2.getAscent() - _u8g2.getDescent();
}
public:
U8g2Display() : DisplayDriver(OLED_WIDTH, OLED_HEIGHT),
_u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE),
_isOn(false), _drawColor(1), _fontAscent(5), _fontHeight(6) {}
bool begin() {
// Wire must already be initialised by board.begin() before this is called
bool ok = _u8g2.begin();
if (ok) {
_u8g2.setI2CAddress(DISPLAY_ADDRESS * 2); // U8g2 uses 8-bit address
_u8g2.setFontPosTop(); // y coordinate = top of text, not baseline
_u8g2.setFontMode(1); // transparent background
applyFont(1); // default to compact font
_isOn = true;
}
return ok;
}
bool isOn() override { return _isOn; }
void turnOn() override {
_u8g2.setPowerSave(0);
_isOn = true;
}
void turnOff() override {
_u8g2.setPowerSave(1);
_isOn = false;
}
void clear() override {
_u8g2.clearBuffer();
_u8g2.sendBuffer();
}
void startFrame(Color bkg = DARK) override {
_u8g2.clearBuffer();
_drawColor = 1;
_u8g2.setDrawColor(1);
applyFont(1);
}
void setTextSize(int sz) override {
applyFont(sz);
}
void setColor(Color c) override {
_drawColor = (c != DARK) ? 1 : 0;
_u8g2.setDrawColor(_drawColor);
}
void setCursor(int x, int y) override {
_cursorX = x;
_cursorY = y;
}
void print(const char* str) override {
_u8g2.setDrawColor(_drawColor);
_u8g2.drawStr(_cursorX, _cursorY, str);
}
void fillRect(int x, int y, int w, int h) override {
_u8g2.setDrawColor(_drawColor);
_u8g2.drawBox(x, y, w, h);
}
void drawRect(int x, int y, int w, int h) override {
_u8g2.setDrawColor(_drawColor);
_u8g2.drawFrame(x, y, w, h);
}
void drawXbm(int x, int y, const uint8_t* bits, int w, int h) override {
_u8g2.setDrawColor(1);
_u8g2.drawXBM(x, y, w, h, bits);
}
uint16_t getTextWidth(const char* str) override {
return _u8g2.getStrWidth(str);
}
void endFrame() override {
_u8g2.sendBuffer();
}
private:
int _cursorX = 0;
int _cursorY = 0;
};

97
variants/lilygo_techo_card/TechoCardBoard.cpp
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#include <Arduino.h>
#include <Wire.h>
#include "TechoCardBoard.h"
#ifdef LILYGO_TECHO_CARD
Adafruit_NeoPixel Led_A(1, WS2812_DATA_2, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel Led_B(1, WS2812_DATA_3, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel Led_C(1, WS2812_DATA_1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel *Led[] =
{
&Led_A,
&Led_B,
&Led_C,
};
void TechoCardBoard::begin() {
NRF52BoardDCDC::begin();
Wire.begin();
for (uint8_t i = 0; i < sizeof(Led) / sizeof(Led[0]); i++)
{
Led[i]->begin();
delay(3); // allow the LEDs to initialise, otherwise they can get stuck
Led[i]->setPixelColor(0, Led[i]->Color(0, 0, 0));
Led[i]->show();
}
// put IMU20948 to sleep
// see https://product.tdk.com/system/files/dam/doc/product/sensor/mortion-inertial/imu/data_sheet/ds-000189-icm-20948-v1.5.pdf
Wire.beginTransmission(0x68);
Wire.write(0x06); // PWR_MGMT_1 register
Wire.write(0x40); // set SLEEP bit
Wire.endTransmission();
}
uint16_t TechoCardBoard::getBattMilliVolts() {
int adcvalue = 0;
analogReference(AR_INTERNAL_3_0);
analogReadResolution(12);
digitalWrite(PIN_BAT_CTL, HIGH); // enable vbat vdiv
delay(10);
// ADC range is 0..3000mV and resolution is 12-bit (0..4095)
adcvalue = analogRead(PIN_VBAT_READ);
digitalWrite(PIN_BAT_CTL, LOW);
// Convert the raw value to compensated mv, taking the resistor-
// divider into account (providing the actual LIPO voltage)
return (uint16_t)((float)adcvalue * REAL_VBAT_MV_PER_LSB);
}
void TechoCardBoard::onBeforeTransmit() {
Led_A.setPixelColor(0, 20, 20, 20); // turn TX LED on
Led_A.show();
}
void TechoCardBoard::onAfterTransmit() {
Led_A.setPixelColor(0, 0, 0, 0); // turn TX LED off
Led_A.show();
}
void TechoCardBoard::toggleTorch() {
if (!_torchStatus) {
Led_C.setPixelColor(0, 255, 255, 255);
Led_C.show();
_torchStatus = true;
} else {
Led_C.setPixelColor(0, 0, 0, 0);
Led_C.show();
_torchStatus = false;
}
}
void TechoCardBoard::turnOffLeds() {
for (uint8_t i = 0; i < sizeof(Led) / sizeof(*Led); i++)
{
Led[i]->setPixelColor(0, 0, 0, 0);
Led[i]->show();
}
}
void TechoCardBoard::powerOff() {
nrf_gpio_cfg_sense_input(BUTTON_PIN, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW);
turnOffLeds();
digitalWrite(PIN_PWR_EN, LOW);
sd_power_system_off();
}
#endif

36
variants/lilygo_techo_card/TechoCardBoard.h
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#pragma once
#include <MeshCore.h>
#include <Arduino.h>
#include <helpers/NRF52Board.h>
#include <Adafruit_Neopixel.h>
// built-ins
#define VBAT_MV_PER_LSB (0.73242188F) // 3.0V ADC range and 12-bit ADC resolution = 3000mV/4096
#define VBAT_DIVIDER (0.5F) // Even voltage divider on VBAT
#define VBAT_DIVIDER_COMP (2.0F) // Compensation factor for the VBAT divider
#define PIN_VBAT_READ (2)
#define REAL_VBAT_MV_PER_LSB (VBAT_DIVIDER_COMP * VBAT_MV_PER_LSB)
class TechoCardBoard : public NRF52BoardDCDC {
bool _torchStatus = false;
public:
TechoCardBoard() : NRF52Board("TECHO_OTA") {}
void begin();
uint16_t getBattMilliVolts() override;
void onBeforeTransmit(void) override;
void onAfterTransmit(void) override;
const char* getManufacturerName() const override {
return "LilyGo T-Echo Card";
}
void powerOff() override;
void toggleTorch();
void turnOffLeds();
};

119
variants/lilygo_techo_card/platformio.ini
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[LilyGo_T-Echo_Card]
extends = nrf52_base
board = t-echo
board_build.ldscript = boards/nrf52840_s140_v6.ld
build_flags = ${nrf52_base.build_flags}
-I variants/lilygo_techo_card
-I src/helpers/nrf52
-I lib/nrf52/s140_nrf52_6.1.1_API/include
-I lib/nrf52/s140_nrf52_6.1.1_API/include/nrf52
-D LILYGO_TECHO_CARD
-D RADIO_CLASS=CustomSX1262
-D WRAPPER_CLASS=CustomSX1262Wrapper
-D LORA_TX_POWER=22
-D SX126X_CURRENT_LIMIT=140
-D SX126X_RX_BOOSTED_GAIN=1
-D HAS_NEOPIXEL=1
-D HAS_TORCH=1
-D DISABLE_DIAGNOSTIC_OUTPUT
-D ENV_INCLUDE_GPS=1
-D DISPLAY_CLASS=U8g2Display
-D PIN_OLED_RESET=-1
build_src_filter = ${nrf52_base.build_src_filter}
+<helpers/*.cpp>
+<TechoCardBoard.cpp>
+<helpers/sensors/EnvironmentSensorManager.cpp>
+<helpers/ui/U8g2Display.h>
+<helpers/ui/MomentaryButton.cpp>
+<../variants/lilygo_techo_card>
lib_deps =
${nrf52_base.lib_deps}
stevemarple/MicroNMEA @ ^2.0.6
olikraus/U8g2 @ ^2.35.19
adafruit/Adafruit NeoPixel@^1.10.0
bakercp/CRC32 @ ^2.0.0
debug_tool = jlink
upload_protocol = nrfutil
[env:LilyGo_T-Echo_Card_repeater]
extends = LilyGo_T-Echo_Card
build_src_filter = ${LilyGo_T-Echo_Card.build_src_filter}
+<../examples/simple_repeater>
build_flags =
${LilyGo_T-Echo_Card.build_flags}
-D ADVERT_NAME='"T-Echo Card Repeater"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
-D MAX_NEIGHBOURS=50
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
[env:LilyGo_T-Echo_Card_room_server]
extends = LilyGo_T-Echo_Card
build_src_filter = ${LilyGo_T-Echo_Card.build_src_filter}
+<../examples/simple_room_server>
build_flags =
${LilyGo_T-Echo_Card.build_flags}
-D ADVERT_NAME='"T-Echo Card Room"'
-D ADVERT_LAT=0.0
-D ADVERT_LON=0.0
-D ADMIN_PASSWORD='"password"'
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
[env:LilyGo_T-Echo_Card_companion_radio_ble]
extends = LilyGo_T-Echo_Card
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${LilyGo_T-Echo_Card.build_flags}
-I src/helpers/ui
-I examples/companion_radio/ui-tiny
-D PIN_BUZZER=38
-D QSPIFLASH=1
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D BLE_PIN_CODE=123456
; -D BLE_DEBUG_LOGGING=1
-D OFFLINE_QUEUE_SIZE=256
-D UI_RECENT_LIST_SIZE=3
-D UI_GPS_PAGE=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
-D AUTO_SHUTDOWN_MILLIVOLTS=3300
build_src_filter = ${LilyGo_T-Echo_Card.build_src_filter}
+<helpers/nrf52/SerialBLEInterface.cpp>
+<../examples/companion_radio/*.cpp>
+<../examples/companion_radio/ui-tiny/*.cpp>
+<helpers/ui/buzzer.cpp>
lib_deps =
${LilyGo_T-Echo_Card.lib_deps}
end2endzone/NonBlockingRTTTL@^1.3.0
densaugeo/base64 @ ~1.4.0
[env:LilyGo_T-Echo_Card_companion_radio_usb]
extends = LilyGo_T-Echo_Card
board_build.ldscript = boards/nrf52840_s140_v6_extrafs.ld
board_upload.maximum_size = 712704
build_flags =
${LilyGo_T-Echo_Card.build_flags}
-I src/helpers/ui
-I examples/companion_radio/ui-tiny
-D PIN_BUZZER=38
-D QSPIFLASH=1
-D MAX_CONTACTS=350
-D MAX_GROUP_CHANNELS=40
-D OFFLINE_QUEUE_SIZE=256
-D UI_RECENT_LIST_SIZE=3
-D UI_GPS_PAGE=1
; -D MESH_PACKET_LOGGING=1
; -D MESH_DEBUG=1
-D AUTO_SHUTDOWN_MILLIVOLTS=3300
build_src_filter = ${LilyGo_T-Echo_Card.build_src_filter}
+<../examples/companion_radio/*.cpp>
+<../examples/companion_radio/ui-tiny/*.cpp>
lib_deps =
${LilyGo_T-Echo_Card.lib_deps}
end2endzone/NonBlockingRTTTL@^1.3.0
densaugeo/base64 @ ~1.4.0

38
variants/lilygo_techo_card/target.cpp
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#include <Arduino.h>
#include "target.h"
#include <helpers/ArduinoHelpers.h>
#include <helpers/sensors/MicroNMEALocationProvider.h>
TechoCardBoard board;
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
WRAPPER_CLASS radio_driver(radio, board);
VolatileRTCClock fallback_clock;
AutoDiscoverRTCClock rtc_clock(fallback_clock);
#ifdef ENV_INCLUDE_GPS
MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock);
EnvironmentSensorManager sensors = EnvironmentSensorManager(nmea);
#else
EnvironmentSensorManager sensors = EnvironmentSensorManager();
#endif
#ifdef DISPLAY_CLASS
DISPLAY_CLASS display;
MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
MomentaryButton back_btn(PIN_BUTTON2, 1000, true);
#endif
bool radio_init() {
rtc_clock.begin(Wire);
return radio.std_init(&SPI);
}
mesh::LocalIdentity radio_new_identity() {
RadioNoiseListener rng(radio);
return mesh::LocalIdentity(&rng); // create new random identity
}

29
variants/lilygo_techo_card/target.h
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#pragma once
#define RADIOLIB_STATIC_ONLY 1
#include <RadioLib.h>
#include <helpers/radiolib/RadioLibWrappers.h>
#include <TechoCardBoard.h>
#include <helpers/radiolib/CustomSX1262Wrapper.h>
#include <helpers/AutoDiscoverRTCClock.h>
#include <helpers/SensorManager.h>
#include <helpers/sensors/EnvironmentSensorManager.h>
#include <helpers/sensors/LocationProvider.h>
#ifdef DISPLAY_CLASS
#include <helpers/ui/U8g2Display.h>
#include <helpers/ui/MomentaryButton.h>
#endif
extern TechoCardBoard board;
extern WRAPPER_CLASS radio_driver;
extern AutoDiscoverRTCClock rtc_clock;
extern EnvironmentSensorManager sensors;
#ifdef DISPLAY_CLASS
extern DISPLAY_CLASS display;
extern MomentaryButton user_btn;
extern MomentaryButton back_btn;
#endif
bool radio_init();
mesh::LocalIdentity radio_new_identity();

45
variants/lilygo_techo_card/variant.cpp
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#include "variant.h"
#include "wiring_constants.h"
#include "wiring_digital.h"
#include "Adafruit_NeoPixel.h"
const int MISO = PIN_SPI_MISO;
const int MOSI = PIN_SPI_MOSI;
const int SCK = PIN_SPI_SCK;
const uint32_t g_ADigitalPinMap[] = {
0xff, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47
};
void initVariant() {
// turn on 3v3 rail
pinMode(PIN_PWR_EN, OUTPUT);
digitalWrite(PIN_PWR_EN, HIGH);
// VDIV enable
pinMode(PIN_BAT_CTL, OUTPUT);
// buttons
pinMode(PIN_BUTTON1, INPUT_PULLUP);
pinMode(PIN_BUTTON2, INPUT_PULLUP);
// speaker
pinMode(SPEAKER_EN, OUTPUT);
digitalWrite(SPEAKER_EN, LOW);
pinMode(SPEAKER_EN_2, OUTPUT);
digitalWrite(SPEAKER_EN_2, LOW);
// gps
pinMode(PIN_GPS_STANDBY, OUTPUT);
digitalWrite(PIN_GPS_STANDBY, HIGH);
pinMode(PIN_GPS_EN, OUTPUT);
digitalWrite(PIN_GPS_EN, HIGH);
pinMode(PIN_GPS_RESET, OUTPUT);
digitalWrite(PIN_GPS_RESET, HIGH);
}

144
variants/lilygo_techo_card/variant.h
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/*
* variant.h
*
* MIT License
*/
#pragma once
#include "WVariant.h"
////////////////////////////////////////////////////////////////////////////////
// Low frequency clock source
#define USE_LFXO // 32.768 kHz crystal oscillator
#define VARIANT_MCK (64000000ul)
#define WIRE_INTERFACES_COUNT (1)
////////////////////////////////////////////////////////////////////////////////
// Power
#define PIN_PWR_EN (30) // RT9080 LDO enable pin for 3v3 rail
#define PIN_BAT_CTL (31) // vdiv enable
#define PIN_VBAT_READ (2)
#define ADC_MULTIPLIER (4.90F)
#define ADC_RESOLUTION (14)
#define BATTERY_SENSE_RES (12)
#define AREF_VOLTAGE (3.0)
////////////////////////////////////////////////////////////////////////////////
// Number of pins
#define PINS_COUNT (48)
#define NUM_DIGITAL_PINS (48)
#define NUM_ANALOG_INPUTS (1)
#define NUM_ANALOG_OUTPUTS (0)
////////////////////////////////////////////////////////////////////////////////
// UART pin definition
#define PIN_SERIAL1_RX PIN_GPS_TX
#define PIN_SERIAL1_TX PIN_GPS_RX
////////////////////////////////////////////////////////////////////////////////
// I2C pin definition
#define PIN_WIRE_SDA (36) // P1.04
#define PIN_WIRE_SCL (34) // P1.02
#define I2C_NO_RESCAN
#define DISABLE_DS3231_PROBE // DS3231 lives at 0x68 but this board has ICM20948 at that address, causing broken clock.
////////////////////////////////////////////////////////////////////////////////
// SPI pin definition
#define SPI_INTERFACES_COUNT (1)
#define PIN_SPI_MISO (17)
#define PIN_SPI_MOSI (15)
#define PIN_SPI_SCK (13)
////////////////////////////////////////////////////////////////////////////////
// QSPI FLASH
#define PIN_QSPI_SCK (4)
#define PIN_QSPI_CS (12)
#define PIN_QSPI_IO0 (6)
#define PIN_QSPI_IO1 (8)
#define PIN_QSPI_IO2 (41) // P1.09
#define PIN_QSPI_IO3 (26)
#define EXTERNAL_FLASH_DEVICES ZD25WQ32CEIGR
#define EXTERNAL_FLASH_USE_QSPI
////////////////////////////////////////////////////////////////////////////////
// Builtin LEDs (only WS2812, no traditional LEDs available)
// WS1812 data lines
#define WS2812_DATA_1 (39) // P1.07
#define WS2812_DATA_2 (44) // P1.12
#define WS2812_DATA_3 (28) // P0.28
#define LED_BLUE (-1)
#define LED_BUILTIN (-1)
#define LED_PIN LED_BUILTIN
#define LED_STATE_ON LOW
////////////////////////////////////////////////////////////////////////////////
// Builtin buttons
#define PIN_BUTTON1 (42) // P1.10
#define BUTTON_PIN PIN_BUTTON1 // BUTTON A
#define PIN_USER_BTN BUTTON_PIN
#define PIN_BUTTON2 (24)
#define BUTTON_PIN2 PIN_BUTTON2 // BUTTON C
////////////////////////////////////////////////////////////////////////////////
// Lora (Acsip S62F)
#define USE_SX1262
#define P_LORA_SCLK PIN_SPI_SCK
#define P_LORA_MISO PIN_SPI_MISO
#define P_LORA_MOSI PIN_SPI_MOSI
#define P_LORA_DIO_1 (40) // P1.08
#define P_LORA_RESET (7) // P0.07
#define P_LORA_BUSY (14) // P0.14
#define P_LORA_NSS (11) // P0.11
#define SX126X_RXEN (33) // P1.01
#define SX126X_TXEN (27) // P0.27
#define SX126X_DIO3_TCXO_VOLTAGE (1.8f)
////////////////////////////////////////////////////////////////////////////////
// GPS
// NOTE: these pins are defined differently to how lilygo does them but they
// seem to work properly for how EnvironmentSensorManager operates.
// TODO: MAYBE? migrate to board based sensor manager / add GPS_WAKE_UP to ESM
#define PIN_GPS_RX (21) // GPS_UART_RX in lilygo pin defs
#define PIN_GPS_TX (19) // GPS_UART_TX in lilygo pin defs
#define PIN_GPS_EN (25) // GPS_WAKE_UP in lilygo pin defs
#define PIN_GPS_RESET (47) // GPS_EN in lilygo pin defs
#define PIN_GPS_STANDBY (29) // GPS_RF_EN in lilygo pin defs
#define PIN_GPS_PPS (23) // GPS_1PPS in lilygo pin defs
// buzzer - enabled in platformio.ini so it can be easily turned off if not wanted.
// #define PIN_BUZZER (38) // P1.06
// microphone
#define MICROPHONE_SCLK (35) // P1.03
#define MICROPHONE_DATA (37) // P1.05
// speaker
#define SPEAKER_EN (43) // P1.11
#define SPEAKER_EN_2 (3) // P0.03
#define SPEAKER_BCLK (16) // P0.16
#define SPEAKER_DATA (20) // P0.20
#define SPEAKER_WS_LRCK (22) // P0.22
// ICM20948 9dof motion sensor (accelerometer and magnetometer)
#define ICM20948_SDA PIN_WIRE_SDA // P1.4
#define ICM20948_SCL PIN_WIRE_SCL // P1.2
#define ICM20948_ADDRESS 0x68
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