i am using esp32 ai thinker to capture a photo and send it to the flask server . I am providing my computer server address but still not working.
here is the code
#include <WiFi.h>
#include "soc/soc.h"
#include "soc/rtc_cntl_reg.h"
#include "esp_camera.h"
//========================================
//======================================== CAMERA_MODEL_AI_THINKER GPIO.
#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
//========================================
// LED Flash PIN (GPIO 4)
#define FLASH_LED_PIN 4
//======================================== Insert your network credentials.
const char* ssid = "realme 6";
const char* password = "{redacted}";
//========================================
//======================================== Variables for Timer/Millis.
unsigned long previousMillis = 0;
const int Interval = 20000; //--> Photo capture every 20 seconds.
//========================================
// Server Address or Server IP.
String serverName = "192.168.X.X"; //--> Change with your server computer's IP address or your Domain name.
IPAddress server(192, 168, X, X);
// The file path "upload_img.php" on the server folder.
String serverPath = "http://127.0.0.1:5000";
// Server Port.
const int serverPort = 80;
// Variable to set capture photo with LED Flash.
// Set to "false", then the Flash LED will not light up when capturing a photo.
// Set to "true", then the Flash LED lights up when capturing a photo.
bool LED_Flash_ON = true;
// Initialize WiFiClient.
WiFiClient client;
//________________________________________________________________________________ sendPhotoToServer()
void sendPhotoToServer() {
String AllData;
String DataBody;
Serial.println();
Serial.println("-----------");
//---------------------------------------- Pre capture for accurate timing.
Serial.println("Taking a photo...");
if (LED_Flash_ON == true) {
digitalWrite(FLASH_LED_PIN, HIGH);
delay(1000);
}
for (int i = 0; i <= 3; i++) {
camera_fb_t * fb = NULL;
fb = esp_camera_fb_get();
if(!fb) {
Serial.println("Camera capture failed");
Serial.println("Restarting the ESP32 CAM.");
delay(1000);
ESP.restart();
return;
}
esp_camera_fb_return(fb);
delay(200);
}
camera_fb_t * fb = NULL;
fb = esp_camera_fb_get();
if(!fb) {
Serial.println("Camera capture failed");
Serial.println("Restarting the ESP32 CAM.");
delay(1000);
ESP.restart();
return;
}
if (LED_Flash_ON == true) digitalWrite(FLASH_LED_PIN, LOW);
Serial.println("Taking a photo was successful.");
//----------------------------------------
Serial.println("Connecting to server: " + serverName);
if (client.connect(server, serverPort)) {
Serial.println("Connection successful!");
String post_data = "--dataMarker\r\nContent-Disposition: form-data; name=\"imageFile\"; filename=\"ESP32CAMCap.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n";
String head = post_data;
String boundary = "\r\n--dataMarker--\r\n";
uint32_t imageLen = fb->len;
uint32_t dataLen = head.length() + boundary.length();
uint32_t totalLen = imageLen + dataLen;
client.println("POST " + serverPath + " HTTP/1.1");
client.println("Host: " + serverName);
client.println("Content-Length: " + String(totalLen));
client.println("Content-Type: multipart/form-data; boundary=dataMarker");
client.println();
client.print(head);
uint8_t *fbBuf = fb->buf;
size_t fbLen = fb->len;
for (size_t n=0; n<fbLen; n=n+1024) {
if (n+1024 < fbLen) {
client.write(fbBuf, 1024);
fbBuf += 1024;
}
else if (fbLen%1024>0) {
size_t remainder = fbLen%1024;
client.write(fbBuf, remainder);
}
}
client.print(boundary);
esp_camera_fb_return(fb);
int timoutTimer = 10000;
long startTimer = millis();
boolean state = false;
Serial.println("Response : ");
while ((startTimer + timoutTimer) > millis()) {
Serial.print(".");
delay(200);
// Skip HTTP headers
while (client.available()) {
char c = client.read();
if (c == '\n') {
if (AllData.length()==0) { state=true; }
AllData = "";
}
else if (c != '\r') { AllData += String(c); }
if (state==true) { DataBody += String(c); }
startTimer = millis();
}
if (DataBody.length()>0) { break; }
}
client.stop();
Serial.println(DataBody);
Serial.println("-----------");
Serial.println();
}
else {
client.stop();
DataBody = "Connection to " + serverName + " failed.";
Serial.println(DataBody);
Serial.println("-----------");
}
}
//________________________________________________________________________________
//________________________________________________________________________________ VOID SETUP()
void setup() {
// put your setup code here, to run once:
// Disable brownout detector.
WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);
Serial.begin(115200);
Serial.println();
pinMode(FLASH_LED_PIN, OUTPUT);
// Setting the ESP32 WiFi to station mode.
WiFi.mode(WIFI_STA);
Serial.println();
//---------------------------------------- The process of connecting ESP32 CAM with WiFi Hotspot / WiFi Router.
Serial.println();
Serial.print("Connecting to : ");
Serial.println(ssid);
WiFi.begin(ssid, password);
// The process timeout of connecting ESP32 CAM with WiFi Hotspot / WiFi Router is 20 seconds.
// If within 20 seconds the ESP32 CAM has not been successfully connected to WiFi, the ESP32 CAM will restart.
// I made this condition because on my ESP32-CAM, there are times when it seems like it can't connect to WiFi, so it needs to be restarted to be able to connect to WiFi.
int connecting_process_timed_out = 20; //--> 20 = 20 seconds.
connecting_process_timed_out = connecting_process_timed_out * 2;
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(500);
if(connecting_process_timed_out > 0) connecting_process_timed_out--;
if(connecting_process_timed_out == 0) {
Serial.println();
Serial.print("Failed to connect to ");
Serial.println(ssid);
Serial.println("Restarting the ESP32 CAM.");
delay(1000);
ESP.restart();
}
}
Serial.println();
Serial.print("Successfully connected to ");
Serial.println(ssid);
//Serial.print("ESP32-CAM IP Address: ");
//Serial.println(WiFi.localIP());
//----------------------------------------
//---------------------------------------- Set the camera ESP32 CAM.
Serial.println();
Serial.print("Set the camera ESP32 CAM...");
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;
// init with high specs to pre-allocate larger buffers
if(psramFound()){
config.frame_size = FRAMESIZE_UXGA;
config.jpeg_quality = 10; //--> 0-63 lower number means higher quality
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 8; //--> 0-63 lower number means higher quality
config.fb_count = 1;
}
// camera init
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
Serial.println();
Serial.println("Restarting the ESP32 CAM.");
delay(1000);
ESP.restart();
}
sensor_t * s = esp_camera_sensor_get();
// Selectable camera resolution details :
// -UXGA = 1600 x 1200 pixels
// -SXGA = 1280 x 1024 pixels
// -XGA = 1024 x 768 pixels
// -SVGA = 800 x 600 pixels
// -VGA = 640 x 480 pixels
// -CIF = 352 x 288 pixels
// -QVGA = 320 x 240 pixels
// -HQVGA = 240 x 160 pixels
// -QQVGA = 160 x 120 pixels
s->set_framesize(s, FRAMESIZE_SXGA); //--> UXGA|SXGA|XGA|SVGA|VGA|CIF|QVGA|HQVGA|QQVGA
Serial.println();
Serial.println("Set camera ESP32 CAM successfully.");
//----------------------------------------
Serial.println();
Serial.print("ESP32-CAM captures and sends photos to the server every 20 seconds.");
}
//________________________________________________________________________________
//________________________________________________________________________________ VOID LOOP()
void loop() {
// put your main code here, to run repeatedly:
//---------------------------------------- Timer/Millis to capture and send photos to server every 20 seconds (see Interval variable).
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= Interval) {
previousMillis = currentMillis;
sendPhotoToServer();
}
//----------------------------------------
}
please help me !!
