Fix for ESP32-S3-WROOM-1: safe GPIO pins, serial flush, delays

- Switch pins: 2-7, 15-18 (avoids USB 19/20, PSRAM 26-32, JTAG 34-37) - LED pins: 38-42, 45-48, 21 (high GPIOs, no special functions) - Add Serial.flush() after init messages - Increase startup delays for reliable serial output - Board: esp32-s3-devkitc-1-n16r8
2026-06-23 13:22:49 +00:00
parent bb32ec65d1
commit c94be67384
4 changed files with 31 additions and 20 deletions
@@ -3,17 +3,18 @@

 [env:esp32s3]
 platform = espressif32
-board = esp32-s3-devkitc-1
+board = esp32-s3-devkitc-1-n16r8
 framework = arduino

 lib_deps =
    adafruit/Adafruit TinyUSB Library@^2.0.0
-    adafruit/Adafruit NeoPixel

 build_flags =
+    -DARDUINO_USB_MODE=1
    -DARDUINO_USB_CDC_ON_BOOT=1

 monitor_speed = 115200
+monitor_port = /dev/ttyACM0

 board_build.partitions = default_8MB.csv
 board_build.arduino.memory_type = qio_opi