updates

2026-10-02 12:23:58 -04:00
parent f0af1dbbcb
commit ad1e7e6d01
219 changed files with 488314 additions and 0 deletions
@@ -0,0 +1,95 @@
+// DFRobot DFR1154 camera bring-up: capture one QVGA JPEG on each 'C' command.
+// GPIO assignments match DFRobot's DFR1154 CameraWebServer example.
+// The serial protocol contains no Wi-Fi credentials or network dependency.
+
+#include <Arduino.h>
+#include "esp_camera.h"
+
+namespace {
+bool camera_ready = false;
+
+void print_error(const char* stage, esp_err_t error) {
+  Serial.printf("ERROR %s 0x%X\n", stage, static_cast<unsigned int>(error));
+}
+
+void capture_one_frame() {
+  if (!camera_ready) {
+    Serial.println("ERROR camera_not_ready");
+    return;
+  }
+  camera_fb_t* frame = esp_camera_fb_get();
+  if (!frame) {
+    Serial.println("ERROR capture_failed");
+    return;
+  }
+  if (frame->format != PIXFORMAT_JPEG || frame->len == 0) {
+    Serial.println("ERROR unexpected_frame_format");
+    esp_camera_fb_return(frame);
+    return;
+  }
+
+  Serial.printf("JPEG %u %u %u\n", static_cast<unsigned int>(frame->len),
+                static_cast<unsigned int>(frame->width),
+                static_cast<unsigned int>(frame->height));
+  Serial.write(frame->buf, frame->len);
+  Serial.print("\nDONE\n");
+  Serial.flush();
+  esp_camera_fb_return(frame);
+}
+}  // namespace
+
+void setup() {
+  Serial.begin(115200);
+  delay(500);
+
+  camera_config_t config = {};
+  config.ledc_channel = LEDC_CHANNEL_0;
+  config.ledc_timer = LEDC_TIMER_0;
+  config.pin_d0 = 16;
+  config.pin_d1 = 18;
+  config.pin_d2 = 21;
+  config.pin_d3 = 17;
+  config.pin_d4 = 14;
+  config.pin_d5 = 7;
+  config.pin_d6 = 6;
+  config.pin_d7 = 4;
+  config.pin_xclk = 5;
+  config.pin_pclk = 15;
+  config.pin_vsync = 1;
+  config.pin_href = 2;
+  config.pin_sccb_sda = 8;
+  config.pin_sccb_scl = 9;
+  config.pin_pwdn = -1;
+  config.pin_reset = -1;
+  config.xclk_freq_hz = 20000000;
+  config.pixel_format = PIXFORMAT_JPEG;
+  config.frame_size = FRAMESIZE_QVGA;
+  config.jpeg_quality = 12;
+  config.fb_count = 1;
+  config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
+  config.fb_location = CAMERA_FB_IN_PSRAM;
+
+  if (!psramFound()) {
+    Serial.println("ERROR psram_missing");
+    return;
+  }
+  const esp_err_t result = esp_camera_init(&config);
+  if (result != ESP_OK) {
+    print_error("camera_init", result);
+    return;
+  }
+  sensor_t* sensor = esp_camera_sensor_get();
+  if (sensor) {
+    Serial.printf("SENSOR_PID 0x%04X\n", sensor->id.PID);
+    if (sensor->id.PID == OV3660_PID) sensor->set_vflip(sensor, 1);
+  }
+  camera_ready = true;
+  Serial.println("CAMERA_READY QVGA_JPEG");
+}
+
+void loop() {
+  while (Serial.available()) {
+    if (Serial.read() == 'C') capture_one_frame();
+  }
+  delay(5);
+}