#include <HTTPClient.h>
#include <WiFi.h>
#include <esp_camera.h>
#include <DHTesp.h>
DHTesp dht;
#define CAMERA_MODEL_AI_THINKER
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22
const char* ssid = "esp";
const char* password = "123456789";
const char* serverIP = "3.37.127.195";
const int serverPort = 1234;
const int soilMoisturePin = 12;
const int cdsPin = 13;
const long imageInterval = 1800000;
unsigned long lastImageCaptureTime = 0;
int readSoilMoisture() {
return analogRead(soilMoisturePin);
}
int readCDS() {
return analogRead(cdsPin);
}
void captureAndSendImage() {
camera_fb_t* fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Failed to capture image");
return;
}
HTTPClient http;
http.begin("http://" + String(serverIP) + ":" + String(serverPort) + "/upload_image");
http.addHeader("Content-Type", "image/jpeg");
http.addHeader("Content-Length", String(fb->len));
int httpResponseCode = http.POST(fb->buf, fb->len);
if (httpResponseCode > 0) {
Serial.println("Image uploaded successfully");
} else {
Serial.print("Image upload failed, error code: ");
Serial.println(httpResponseCode);
}
http.end();
esp_camera_fb_return(fb);
}
void setup() {
Serial.begin(115200);
dht.setup(15, DHTesp::DHT_MODEL_t::DHT22);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
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_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;
config.frame_size = FRAMESIZE_VGA; // 640x480
config.jpeg_quality = 10;
config.fb_count = 2;
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera initialization failed with error 0x%x", err);
return;
}
}
void loop() {
unsigned long currentTime = millis();
if (currentTime - lastImageCaptureTime >= imageInterval) {
lastImageCaptureTime = currentTime;
captureAndSendImage();
}
float soilMoisture = readSoilMoisture();
float cdsValue = readCDS();
float temp = dht.getTemperature();
float humi = dht.getHumidity();
String sensorData = "soil=" + String(soilMoisture) + "&cds=" + String(cdsValue) + "&Temp=" + String(temp) + "&humi=" + String(humi);
HTTPClient http;
Serial.println(sensorData);
http.begin("http://" + String(serverIP) + ":" + String(serverPort) + "/upload_sensor_data");
http.addHeader("Content-Type", "application/x-www-form-urlencoded");
int httpResponseCode = http.POST(sensorData);
if (httpResponseCode > 0) {
Serial.println("Sensor data uploaded successfully");
}
else {
Serial.print("Sensor data upload failed, error code: ");
Serial.println(httpResponseCode);
}
http.end();
delay(15000);
}
The above code transmits the photos and sensor values taken by the esp32 cam to the server. However, the sensor value is normally transmitted to the server, but the image is not normally transmitted from the esp32 cam. "etected camera not supported." this error occurs