Initial push

2025-12-22 02:32:18 +01:00
commit b313720c81
3 changed files with 617 additions and 0 deletions
@@ -0,0 +1,118 @@
+#include "esp_camera.h"
+#define CAMERA_MODEL_AI_THINKER
+#include "camera_pins.h"
+#include <String>
+
+void init_camera(){
+  camera_config_t config;
+  config.ledc_channel = LEDC_CHANNEL_0;
+  config.ledc_timer = LEDC_TIMER_0;
+  config.pin_d0 = Y2_GPIO_NUM;
+  config.pin_d1 = Y3_GPIO_NUM;
+  config.pin_d2 = Y4_GPIO_NUM;
+  config.pin_d3 = Y5_GPIO_NUM;
+  config.pin_d4 = Y6_GPIO_NUM;
+  config.pin_d5 = Y7_GPIO_NUM;
+  config.pin_d6 = Y8_GPIO_NUM;
+  config.pin_d7 = Y9_GPIO_NUM;
+  config.pin_xclk = XCLK_GPIO_NUM;
+  config.pin_pclk = PCLK_GPIO_NUM;
+  config.pin_vsync = VSYNC_GPIO_NUM;
+  config.pin_href = HREF_GPIO_NUM;
+  config.pin_sccb_sda = SIOD_GPIO_NUM;
+  config.pin_sccb_scl = SIOC_GPIO_NUM;
+  config.pin_pwdn = PWDN_GPIO_NUM;
+  config.pin_reset = RESET_GPIO_NUM;
+  config.xclk_freq_hz = 20000000;
+  config.frame_size = FRAMESIZE_UXGA;
+  // config.pixel_format = PIXFORMAT_JPEG;  // for streaming
+  config.pixel_format = PIXFORMAT_RGB565; // for face detection/recognition
+  config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
+  config.fb_location = CAMERA_FB_IN_PSRAM;
+  config.jpeg_quality = 12;
+  config.fb_count = 1;
+
+  // if PSRAM IC present, init with UXGA resolution and higher JPEG quality
+  //                      for larger pre-allocated frame buffer.
+  if (config.pixel_format == PIXFORMAT_JPEG) {
+    if (psramFound()) {
+      config.jpeg_quality = 10;
+      config.fb_count = 2;
+      config.grab_mode = CAMERA_GRAB_LATEST;
+    } else {
+      // Limit the frame size when PSRAM is not available
+      config.frame_size = FRAMESIZE_WQXGA;
+      config.fb_location = CAMERA_FB_IN_DRAM;
+    }
+  } else {
+    // Best option for face detection/recognition
+    config.frame_size = /*FRAMESIZE_QVGA;*/ FRAMESIZE_HVGA;
+#if CONFIG_IDF_TARGET_ESP32S3
+    config.fb_count = 2;
+#endif
+  }
+
+#if defined(CAMERA_MODEL_ESP_EYE)
+  pinMode(13, INPUT_PULLUP);
+  pinMode(14, INPUT_PULLUP);
+#endif
+
+  // camera init
+  esp_err_t err = esp_camera_init(&config);
+  if (err != ESP_OK) {
+    Serial.printf("Camera init failed with error 0x%x", err);
+    return;
+  }
+
+  sensor_t *s = esp_camera_sensor_get();
+  // initial sensors are flipped vertically and colors are a bit saturated
+  if (s->id.PID == OV3660_PID) {
+    s->set_vflip(s, 1);        // flip it back
+    s->set_brightness(s, 1);   // up the brightness just a bit
+    s->set_saturation(s, -2);  // lower the saturation
+  }
+  // drop down frame size for higher initial frame rate
+  if (config.pixel_format == PIXFORMAT_JPEG) {
+    s->set_framesize(s, FRAMESIZE_QVGA);
+  }
+
+#if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM)
+  s->set_vflip(s, 1);
+  s->set_hmirror(s, 1);
+#endif
+
+#if defined(CAMERA_MODEL_ESP32S3_EYE)
+  s->set_vflip(s, 1);
+#endif
+}
+
+void setup() {
+  Serial.begin(921600);
+  Serial.setDebugOutput(true);
+  Serial.println();
+
+  init_camera();
+}
+
+void loop() {
+  static int64_t last_frame = 0;
+
+  camera_fb_t *framebuffer = esp_camera_fb_get();
+  if(!framebuffer) return;
+
+  uint8_t *image_buffer = NULL;
+  size_t image_buffer_len = 0;
+
+  bool is_converted = frame2jpg(framebuffer, 80, &image_buffer, &image_buffer_len);
+  esp_camera_fb_return(framebuffer);
+  framebuffer = NULL;
+  if(!is_converted) return;
+
+  Serial.write((const char*)image_buffer, image_buffer_len);
+  Serial.write("\4\r\n", 3);
+  
+  if(image_buffer) {
+    free(image_buffer);
+    image_buffer = NULL;
+  }
+}