Add support for Ai Thinker ESP32-CAM boards (default flashlight to off)

Author: gitcnd

ports/espressif/boards/ai-thinker-esp32-cam/board.c

@@ -25,3 +25,29 @@
  */
 
 #include "supervisor/board.h"
+
+#include "mpconfigboard.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "components/driver/gpio/include/driver/gpio.h"
+#include "components/hal/include/hal/gpio_hal.h"
+#include "common-hal/microcontroller/Pin.h"
+
+void board_init(void) {
+    reset_board();
+}
+
+bool espressif_board_reset_pin_number(gpio_num_t pin_number) {
+    // Pull one LED down on reset rather than the default up
+    if (pin_number == 4) { // This is the flashlight LED - very bright
+        gpio_config_t cfg = {
+            .pin_bit_mask = BIT64(pin_number),
+            .mode = GPIO_MODE_DISABLE,
+            .pull_up_en = false,
+            .pull_down_en = true,
+            .intr_type = GPIO_INTR_DISABLE,
+        };
+        gpio_config(&cfg);
+        return true;
+    }
+    return false;
+}