mirror
/
MeshCore
mirror of https://github.com/meshcore-dev/MeshCore
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

feat: send battery voltage and unread count in BLE advert

pull/2387/head
Dmitry Polshakov 2 months ago
parent
ecd0cfc1c1
commit
50d460cc72
5 changed files with 133 additions and 9 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 22
      examples/companion_radio/MyMesh.cpp
  2. 2
      examples/companion_radio/MyMesh.h
  3. 3
      src/helpers/BaseSerialInterface.h
  4. 86
      src/helpers/esp32/SerialBLEInterface.cpp
  5. 29
      src/helpers/esp32/SerialBLEInterface.h

22
examples/companion_radio/MyMesh.cpp
View File

@ -144,6 +144,8 @@
#define AUTO_ADD_ROOM_SERVER (1 << 3) // 0x08 - auto-add Room Server (ADV_TYPE_ROOM)
#define AUTO_ADD_SENSOR (1 << 4) // 0x10 - auto-add Sensor (ADV_TYPE_SENSOR)
#define BLE_ADV_UPDATE_INTERVAL_MS 30000 // Update BLE advertising every 30 seconds
void MyMesh::writeOKFrame() {
uint8_t buf[1];
buf[0] = RESP_CODE_OK;
@ -237,6 +239,8 @@ void MyMesh::addToOfflineQueue(const uint8_t frame[], int len) {
memcpy(offline_queue[offline_queue_len].buf, frame, len);
offline_queue_len++;
}
updateBLEUnreadCount();
}
int MyMesh::getFromOfflineQueue(uint8_t frame[]) {
@ -248,11 +252,19 @@ int MyMesh::getFromOfflineQueue(uint8_t frame[]) {
for (int i = 0; i < offline_queue_len; i++) { // delete top item from queue
offline_queue[i] = offline_queue[i + 1];
}
updateBLEUnreadCount();
return len;
}
return 0; // queue is empty
}
void MyMesh::updateBLEUnreadCount() {
if (!_serial) return;
_serial->setUnreadCount((uint8_t)min(offline_queue_len, 255));
}
float MyMesh::getAirtimeBudgetFactor() const {
return _prefs.airtime_factor;
}
@ -2158,6 +2170,8 @@ void MyMesh::checkSerialInterface() {
}
void MyMesh::loop() {
static unsigned long last_adv_update = 0;
BaseChatMesh::loop();
if (_cli_rescue) {
@ -2172,6 +2186,14 @@ void MyMesh::loop() {
dirty_contacts_expiry = 0;
}
// Periodically update battery level in BLE advertising
if (millis() - last_adv_update >= BLE_ADV_UPDATE_INTERVAL_MS) {
if (_serial) {
_serial->setBatteryMilliVolts(board.getBattMilliVolts());
}
last_adv_update = millis();
}
#ifdef DISPLAY_CLASS
if (_ui) _ui->setHasConnection(_serial->isConnected());
#endif

2
examples/companion_radio/MyMesh.h
View File

@ -98,6 +98,8 @@ public:
void loop();
void handleCmdFrame(size_t len);
bool advert();
void updateBLEUnreadCount();
void enterCLIRescue();
int getRecentlyHeard(AdvertPath dest[], int max_num);

3
src/helpers/BaseSerialInterface.h
View File

@ -18,4 +18,7 @@ public:
virtual bool isWriteBusy() const = 0;
virtual size_t writeFrame(const uint8_t src[], size_t len) = 0;
virtual size_t checkRecvFrame(uint8_t dest[]) = 0;
virtual void setUnreadCount(uint8_t count) {}
virtual void setBatteryMilliVolts(uint16_t millivolts) {}
};

86
src/helpers/esp32/SerialBLEInterface.cpp
View File

@ -50,7 +50,10 @@ void SerialBLEInterface::begin(const char* prefix, char* name, uint32_t pin_code
pRxCharacteristic->setAccessPermissions(ESP_GATT_PERM_WRITE_ENC_MITM);
pRxCharacteristic->setCallbacks(this);
pServer->getAdvertising()->addServiceUUID(SERVICE_UUID);
// Setup advertising with manufacturer data
pAdvertising = pServer->getAdvertising();
pAdvertising->addServiceUUID(SERVICE_UUID);
applyAdvertisingData();
}
// -------- BLESecurityCallbacks methods
@ -140,10 +143,10 @@ void SerialBLEInterface::enable() {
// Start advertising
//pServer->getAdvertising()->setMinInterval(500);
//pServer->getAdvertising()->setMaxInterval(1000);
//pAdvertising->setMinInterval(500);
//pAdvertising->setMaxInterval(1000);
pServer->getAdvertising()->start();
pAdvertising->start();
adv_restart_time = 0;
}
@ -152,7 +155,7 @@ void SerialBLEInterface::disable() {
BLE_DEBUG_PRINTLN("SerialBLEInterface::disable");
pServer->getAdvertising()->stop();
pAdvertising->stop();
pServer->disconnect(last_conn_id);
pService->stop();
oldDeviceConnected = deviceConnected = false;
@ -223,8 +226,8 @@ size_t SerialBLEInterface::checkRecvFrame(uint8_t dest[]) {
BLE_DEBUG_PRINTLN("SerialBLEInterface -> disconnecting...");
//pServer->getAdvertising()->setMinInterval(500);
//pServer->getAdvertising()->setMaxInterval(1000);
//pAdvertising->setMinInterval(500);
//pAdvertising->setMaxInterval(1000);
adv_restart_time = millis() + ADVERT_RESTART_DELAY;
} else {
@ -232,7 +235,7 @@ size_t SerialBLEInterface::checkRecvFrame(uint8_t dest[]) {
BLE_DEBUG_PRINTLN("SerialBLEInterface -> connecting...");
// connecting
// do stuff here on connecting
pServer->getAdvertising()->stop();
pAdvertising->stop();
adv_restart_time = 0;
}
oldDeviceConnected = deviceConnected;
@ -241,13 +244,78 @@ size_t SerialBLEInterface::checkRecvFrame(uint8_t dest[]) {
if (adv_restart_time && millis() >= adv_restart_time) {
if (pServer->getConnectedCount() == 0) {
BLE_DEBUG_PRINTLN("SerialBLEInterface -> re-starting advertising");
pServer->getAdvertising()->start(); // re-Start advertising
pAdvertising->start(); // re-Start advertising
}
adv_restart_time = 0;
}
// Apply pending advertising data changes when not connected
if (_advDataDirty && !deviceConnected) {
applyAdvertisingData();
_advDataDirty = false;
}
return 0;
}
bool SerialBLEInterface::isConnected() const {
return deviceConnected; //pServer != NULL && pServer->getConnectedCount() > 0;
}
void SerialBLEInterface::setUnreadCount(uint8_t count) {
if (_advStatus.unread_count == count) return;
_advStatus.unread_count = count;
onAdvStatusChanged();
}
void SerialBLEInterface::setBatteryMilliVolts(uint16_t millivolts) {
uint8_t encoded;
if (millivolts < 2500) {
encoded = 0;
} else if (millivolts > 5000) {
encoded = 250;
} else {
encoded = (millivolts - 2500) / 10;
}
if (_advStatus.battery_voltage == encoded) return;
_advStatus.battery_voltage = encoded;
onAdvStatusChanged();
}
void SerialBLEInterface::onAdvStatusChanged() {
if (deviceConnected) {
_advDataDirty = true;
} else if (_isEnabled) {
applyAdvertisingData();
}
}
void SerialBLEInterface::applyAdvertisingData() {
if (!pAdvertising) {
return;
}
// Build manufacturer specific data:
// Bytes 0-1: Manufacturer ID (little-endian)
// Bytes 2-3: AdvertisingStatus struct
uint8_t mfr_data[4];
mfr_data[0] = MESHCORE_MANUFACTURER_ID & 0xFF; // Manufacturer ID low byte
mfr_data[1] = (MESHCORE_MANUFACTURER_ID >> 8) & 0xFF; // Manufacturer ID high byte
mfr_data[2] = _advStatus.unread_count;
mfr_data[3] = _advStatus.battery_voltage;
// Slave Connection Interval Range (AD type 0x12)
// min=40ms (0x0020), max=80ms (0x0040)
uint8_t conn_interval[] = {0x05, 0x12, 0x20, 0x00, 0x40, 0x00};
BLEAdvertisementData advData;
advData.setFlags(ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT);
advData.setCompleteServices(BLEUUID(SERVICE_UUID));
advData.setManufacturerData(std::string((char*)mfr_data, sizeof(mfr_data)));
advData.addData(std::string((char*)conn_interval, sizeof(conn_interval)));
pAdvertising->setAdvertisementData(advData);
BLE_DEBUG_PRINTLN("applyAdvertisingData: unread=%d, battery_voltage=%d",
_advStatus.unread_count, _advStatus.battery_voltage);
}

29
src/helpers/esp32/SerialBLEInterface.h
View File

@ -5,11 +5,25 @@
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
#include <BLEAdvertising.h>
// Manufacturer ID for MeshCore (using 0xFFFF for development/testing)
// In production, you should register with Bluetooth SIG for a unique ID
#define MESHCORE_MANUFACTURER_ID 0xFFFF
// Advertising data structure (packed into manufacturer specific data)
// Byte 0: unread message count (0-255)
// Byte 1: battery voltage encoded as (mV - 2500) / 10, range 0-250 (2500-5000 mV), 0xFF = unknown
struct AdvertisingStatus {
uint8_t unread_count;
uint8_t battery_voltage;
};
class SerialBLEInterface : public BaseSerialInterface, BLESecurityCallbacks, BLEServerCallbacks, BLECharacteristicCallbacks {
BLEServer *pServer;
BLEService *pService;
BLECharacteristic * pTxCharacteristic;
BLEAdvertising *pAdvertising;
bool deviceConnected;
bool oldDeviceConnected;
bool _isEnabled;
@ -18,6 +32,10 @@ class SerialBLEInterface : public BaseSerialInterface, BLESecurityCallbacks, BLE
unsigned long _last_write;
unsigned long adv_restart_time;
// Advertising status data
AdvertisingStatus _advStatus;
bool _advDataDirty;
struct Frame {
uint8_t len;
uint8_t buf[MAX_FRAME_SIZE];
@ -52,6 +70,7 @@ public:
SerialBLEInterface() {
pServer = NULL;
pService = NULL;
pAdvertising = NULL;
deviceConnected = false;
oldDeviceConnected = false;
adv_restart_time = 0;
@ -59,6 +78,9 @@ public:
_last_write = 0;
last_conn_id = 0;
send_queue_len = recv_queue_len = 0;
_advStatus.unread_count = 0;
_advStatus.battery_voltage = 0xFF; // unknown
_advDataDirty = false;
}
/**
@ -79,6 +101,13 @@ public:
bool isWriteBusy() const override;
size_t writeFrame(const uint8_t src[], size_t len) override;
size_t checkRecvFrame(uint8_t dest[]) override;
void setUnreadCount(uint8_t count) override;
void setBatteryMilliVolts(uint16_t millivolts) override;
private:
void onAdvStatusChanged();
void applyAdvertisingData();
};
#if BLE_DEBUG_LOGGING && ARDUINO

Write Preview
Loading…
Cancel
Save