From 886b23db7fc31100e2a807c3fecbf8b806eae362 Mon Sep 17 00:00:00 2001
From: c03rad0r <c03rad0r@users.noreply.github.com>
Date: Tue, 7 Jul 2026 16:53:13 +0530
Subject: [PATCH] fix: enable ESP-IDF HAL by default for LR2021 variant

Enables USE_ESPIDF_HAL in platformio.ini to ensure reliable SPI
communication on ESP32-C3 boards where SPIClass(0) may return zeros.
---
 variants/nicerf_lr2021/platformio.ini | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/variants/nicerf_lr2021/platformio.ini b/variants/nicerf_lr2021/platformio.ini
index 58ed7cd6..438fecb2 100644
--- a/variants/nicerf_lr2021/platformio.ini
+++ b/variants/nicerf_lr2021/platformio.ini
@@ -24,6 +24,8 @@ build_flags =
   -D RADIOLIB_EXCLUDE_SX126X=1
   ; LR2021 IRQ DIO pin (configurable — LR2021 supports any DIO pin for IRQ)
   -D LR2021_IRQ_DIO=9
+  ; Use ESP-IDF SPI HAL (Arduino SPIClass returns zeros on some ESP32-C3 boards)
+  -D USE_ESPIDF_HAL
 build_src_filter = ${esp32_base.build_src_filter}
   +<../variants/nicerf_lr2021>
   +<helpers/sensors>