ESP32CAM | Sending images via UDP?

ESP32CAM_Projects/ESP32_CAM_UDP/ESP32CAM_UDP_CLIENT/ESP32CAM_UDP_CLIENT.ino

@@ -0,0 +1,145 @@
+/////////////////////////////////////////////////////////////////
+/*
+  ESP32CAM | Sending images via UDP?
+  Video Tutorial: https://youtu.be/1kHxd5FOUEU
+  Created by Eric N. (ThatProject)
+*/
+/////////////////////////////////////////////////////////////////
+
+#include "esp_camera.h"
+#include <WiFi.h>
+#include <WiFiUdp.h>
+
+#define CHUNK_LENGTH 1460
+
+#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 = "That-Project";
+const char* password = "California";
+const int udpPort = 8000;
+const char* udpAddress = "192.168.4.1";
+
+boolean connected = false;
+WiFiUDP udp;
+
+void setup() {
+
+  Serial.begin(115200);
+
+  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_CIF;  // 400x296
+  config.jpeg_quality = 10;
+  config.fb_count = 2;
+
+  // 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;
+  }
+
+  //Connect to the WiFi network
+  connectToWiFi(ssid, password);
+}
+
+void loop() {
+  //only send data when connected
+  if (connected) {
+    camera_fb_t* fb = NULL;
+    esp_err_t res = ESP_OK;
+    fb = esp_camera_fb_get();
+    if (!fb) {
+      Serial.println("Camera capture failed");
+      esp_camera_fb_return(fb);
+      return;
+    }
+
+    if (fb->format != PIXFORMAT_JPEG) {
+      Serial.println("PIXFORMAT_JPEG not implemented");
+      esp_camera_fb_return(fb);
+      return;
+    }
+    sendPacketData((const char*)fb->buf, fb->len, CHUNK_LENGTH);
+    esp_camera_fb_return(fb);
+  }
+}
+
+void connectToWiFi(const char* ssid, const char* pwd) {
+  Serial.println("Connecting to WiFi network: " + String(ssid));
+
+  WiFi.disconnect(true);
+  WiFi.onEvent(WiFiEvent);
+  WiFi.begin(ssid, pwd);
+
+  Serial.println("Waiting for WIFI connection...");
+}
+
+void WiFiEvent(WiFiEvent_t event) {
+  switch (event) {
+    case SYSTEM_EVENT_STA_GOT_IP:
+      Serial.print("WiFi connected! IP address: ");
+      Serial.println(WiFi.localIP());
+      udp.begin(WiFi.localIP(), udpPort);
+      connected = true;
+      break;
+    case SYSTEM_EVENT_STA_DISCONNECTED:
+      Serial.println("WiFi lost connection");
+      connected = false;
+      break;
+  }
+}
+
+void sendPacketData(const char* buf, uint16_t len, uint16_t chunkLength) {
+  uint8_t buffer[chunkLength];
+  size_t blen = sizeof(buffer);
+  size_t rest = len % blen;
+
+  for (uint8_t i = 0; i < len / blen; ++i) {
+    memcpy(buffer, buf + (i * blen), blen);
+    udp.beginPacket(udpAddress, udpPort);
+    udp.write(buffer, chunkLength);
+    udp.endPacket();
+  }
+
+  if (rest) {
+    memcpy(buffer, buf + (len - rest), rest);
+    udp.beginPacket(udpAddress, udpPort);
+    udp.write(buffer, rest);
+    udp.endPacket();
+  }
+}