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support for ESP32-C3 supermini #127

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support for ESP32-C3 supermini #127

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20 changes: 18 additions & 2 deletions platformio.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@
; https://docs.platformio.org/page/projectconf.html

[platformio]
default_envs = esp32dev, espa-v1, espa-v2
default_envs = esp32dev, espa-v1, espa-v2, esp32-c3-devkitm-1
; data_dir = {$PROJECT_DIR}/data

[env:spa-base]
Expand Down Expand Up @@ -86,4 +86,20 @@ build_flags =
-D TX_PIN=20 ; Spa serial TX
-D EN_PIN=9 ; Enable/config button
-D GP_PIN=21 ; General purpose button (reserved)
-D SPA_SERIAL=Serial1 ; ESP32-C6 only has UART0/UART1, no UART2
-D SPA_SERIAL=Serial1 ; ESP32-C6 only has UART0/UART1, no UART2

[env:esp32-c3-devkitm-1]
extends = env:spa-base
# ESP32-C3 DevKitC-1 for esp32-c3 super mini
# super mini only has one serial rx/tx, so serial debugging is disabled.
framework = arduino
board = esp32-c3-devkitm-1
board_build.mcu = esp32c3
board_build.partitions = partitions/espa_v2_partitions.csv
board_upload.flash_size = 4MB
build_flags =
-D ESP32_C3=1
-D RX_PIN=20
-D TX_PIN=21
-D EN_PIN=0
-D SPA_SERIAL=Serial0 ; ESP32-C3 only has UART0
14 changes: 10 additions & 4 deletions src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -646,8 +646,10 @@ void setup() {
pinMode(GP_PIN, INPUT_PULLUP);
#endif

Serial.begin(115200);

#if !defined(ESP32_C3)
Serial.begin(115200);
#endif

#if defined(ESPA_V2)
// ESP32-C6: Wait for USB CDC to connect (with timeout)
unsigned long startWait = millis();
Expand All @@ -657,8 +659,12 @@ void setup() {
delay(100); // Extra settling time for USB
#endif

Serial.setDebugOutput(true);
Debug.setSerialEnabled(true);
#if defined(ESP32_C3) // ESP32-C3 can not support serial output since it only has 1 uart
Debug.setSerialEnabled(false);
#else
Serial.setDebugOutput(true);
Debug.setSerialEnabled(true);
#endif

si.begin(); // Initialize SpaInterface serial communication

Expand Down