Hi, I am using an esp32 camera to capture images and send it through an ftp connection. Everything is working fine, I even made a web server so each time I visit the URL with my chrome browser it takes a picture, however I can't make a request from my esp8266 to the same URL, the error is always HTTP Status Code -1. I've tried other API's and they all work except mine. I will share some code:
#include <WiFi.h>
#include <WebServer.h>
#include "ESP32_FTPClient.h"
#include "FS.h"
#include "SD_MMC.h"
#include "soc/soc.h"
#include "soc/rtc_cntl_reg.h"
#include "driver/rtc_io.h"
#include <EEPROM.h>
#include "esp_camera.h"
#define EEPROM_SIZE 1
#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 = "mywifi";
const char* password = "mywifi";
WebServer server(80);
ESP32_FTPClient ftpClient("192.168.1.188", 21, "marco", "marco");
IPAddress local_IP(192, 168, 1, 184);
// Set your Gateway IP address
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 0, 0);
IPAddress primaryDNS(8, 8, 8, 8); //optional
IPAddress secondaryDNS(8, 8, 4, 4); //optional
int pictureNumber = 1;
void setup() {
WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
Serial.begin(115200);
// Camera config
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;
if(psramFound()){
config.frame_size = FRAMESIZE_UXGA;
config.jpeg_quality = 10;
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
}
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
return;
}
// Inicializa SD card
if (!SD_MMC.begin()) {
Serial.println("Failed to mount SD card.");
return;
}
if(!WiFi.config(local_IP, gateway, subnet, primaryDNS, secondaryDNS)) {
Serial.println("STA Failed to configure");
}
//Network config
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("WiFi connected!");
// Http Server cofnig
server.on("/capture_photo", HTTP_GET, []() {
capturePhoto();
server.send(200, "text/plain", "Photo captured!");
});
server.begin();
}
void loop() {
server.handleClient();
}
void capturePhoto() {
camera_fb_t * fb = esp_camera_fb_get();
if(!fb) {
Serial.println("Camera capture failed");
return;
}
// NĂºmero da foto
/*int pictureNumber = EEPROM.read(0) + 1;
EEPROM.write(0, pictureNumber);
EEPROM.commit();
*/
if(pictureNumber == 254){
pictureNumber =1;
}
// Picture path
String path = "/picture" + String(pictureNumber) +".jpg";
pictureNumber++;
// File open to write
File file = SD_MMC.open(path.c_str(), FILE_WRITE);
if(!file) {
Serial.println("Failed to open file in writing mode");
esp_camera_fb_return(fb);
return;
}
// Write image data to file
file.write(fb->buf, fb->len);
file.close();
esp_camera_fb_return(fb);
// Send image through FTP
ftpClient.OpenConnection();
ftpClient.InitFile("Type I");
String imgPath = path.substring(1);
ftpClient.NewFile(imgPath.c_str());
File imgFile = SD_MMC.open(path.c_str());
if (!imgFile) {
Serial.println("Failed to open image file.");
} else {
while (imgFile.available()) {
uint8_t buf[512];
size_t len = imgFile.read(buf, sizeof(buf));
ftpClient.WriteData(buf, len);
}
imgFile.close();
Serial.println("Image file written to FTP.");
ftpClient.CloseFile();
}
ftpClient.CloseConnection();
Serial.println("FTP connection closed.");
}
and for the esp8266 I have:
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
const char* ssid = "mywifi";
const char* password = "mywifi";
const char* esp32camIP = "192.168.1.184";
void setup() {
Serial.begin(9600);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("\nWiFi connected");
}
void loop() {
if (WiFi.status() == WL_CONNECTED) {
HTTPClient http;
WiFiClient client; // Create a WiFiClient object
// Construct the URL for triggering photo capture
String url = "http://" + String(esp32camIP) + "/capture_photo";
Serial.print("Sending GET request to ESP32-CAM: ");
Serial.println(url);
// Begin the HTTP request
http.begin(client, url);
// Send the request and get the response
int httpCode = http.GET();
// Check the HTTP response code
if (httpCode > 0) {
Serial.printf("HTTP status code: %d\n", httpCode);
String payload = http.getString();
Serial.println("Response: " + payload);
} else {
Serial.println("HTTP request failed");
}
// End the request
http.end();
delay(5000); // Delay before sending the next request
} else {
Serial.println("WiFi not connected");
delay(1000);
}
}
It gets a connection but never a response from my esp32-cam server