[BOARD] Add M5Stamp C3 (#1857)

environments.ini

@@ -1731,6 +1731,28 @@ build_flags =
   '-DCONFIG_ESP_CONSOLE_USB_SERIAL_JTAG=true'
   '-DCONFIG_ESP_CONSOLE_UART=ESP_CONSOLE_USB_SERIAL_JTAG'
 
+[env:esp32c3-m5stamp]
+platform = ${com.esp32_platform}
+board = esp32-c3-devkitm-1
+board_build.partitions = min_spiffs.csv
+lib_deps =
+  ${com-esp32.lib_deps}
+  ${libraries.wifimanager32}
+  ${libraries.ble}
+  ${libraries.decoder}
+  ${libraries.adafruit_neopixel}
+build_flags =
+  ${com-esp32.build_flags}
+  '-DZgatewayBT="BT"'
+  '-DTRIGGER_GPIO=3'
+  '-DANEOPIX_IND_DATA_GPIO=2'
+  '-DANEOPIX_IND_NUM_LEDS=1'
+  '-DRGB_INDICATORS=true'
+  '-DNO_INT_TEMP_READING=true' ; Internal temperature reading not building on ESP32 C3 or S3
+  '-DUSE_MAC_AS_GATEWAY_NAME'
+custom_description = BLE gateway on ESP32C3
+custom_hardware = M5Stamp C3
+
 [env:thingpulse-espgateway]
 platform = ${com.esp32_platform}
 board = esp32dev