Stream 640×480 Video from ESP32-CAM to Browser Using MJPEG over HTTP

Introduction

In this tutorial, we will learn how to stream video from the ESP32-CAM module to a web browser using MJPEG over HTTP. We’ll set the video resolution to 640×480 pixels and stream it at 30 frames per second (fps). This project is perfect for IoT applications and provides a great way to monitor environments remotely.

Prerequisites

ESP32-CAM Module
USB to TTL Converter
Jumper Wires
Arduino IDE installed
Basic understanding of Arduino programming

Parts/Tools

ESP32-CAM
USB to TTL Adapter
Computer with Arduino IDE
Wi-Fi Network

Steps

Set Up the Arduino IDE
1. Open Arduino IDE.
2. Go to File > Preferences.
3. In the “Additional Board Manager URLs” field, add the following URL:
```
https://dl.espressif.com/dl/package_esp32_index.json
```
4. Go to Tools > Board > Boards Manager, search for “ESP32” and install the latest version.
Connect the ESP32-CAM
1. Connect the ESP32-CAM to your USB to TTL converter as follows:
  - ESP32-CAM GND to USB-TTL GND
  - ESP32-CAM VCC to USB-TTL 5V
  - ESP32-CAM U0R to USB-TTL TX
  - ESP32-CAM U0T to USB-TTL RX
  - Connect GPIO 0 to GND for programming mode.
2. Plug the USB to TTL converter into your computer.

Upload the Code

Open a new sketch in Arduino IDE and paste the following code:

#include "esp_camera.h"
#define CAMERA_MODEL_AI_THINKER
#include "camera_pins.h"

void startCameraServer() {
    // Start streaming
    // Your streaming code here
}

void setup() {
    Serial.begin(115200);
    camera_config_t config;
    config.ledc_channel = LEDC_CHANNEL; 
    config.ledc_timer = LEDC_TIMER; 
    config.pin_d0 = 32; 
    config.pin_d1 = 33;
    // Configure other camera pins...
    config.xclk_freq_hz = 20000000; 
    config.frame_size = FRAMESIZE_VGA; // 640x480
    config.jpeg_quality = 12; 
    config.fb_count = 2;
    
    esp_err_t err = esp_camera_init(&config);
    if (err != ESP_OK) {
        Serial.printf("Camera init failed with error 0x%x", err);
        return;
    }
    
    startCameraServer();
}

void loop() {
    // Do nothing here
}

Replace the `// Your streaming code here` comment with:
```
startCameraServer();
```

Set your Wi-Fi credentials by adding:

const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";

Compile and upload the code to the ESP32-CAM. Make sure to select the right port and board model.

Test the Streaming
1. Disconnect GPIO 0 from GND and reset the ESP32-CAM.
2. Open the Serial Monitor in Arduino IDE and check for the IP address assigned to the ESP32-CAM.
3. Open a web browser and enter the IP address like this: http:///.
4. You should see the video stream in your browser!

Troubleshooting

Cannot Connect to Wi-Fi: Double-check your SSID and password.
Camera Initialization Failed: Ensure all connections are correct and that the camera is powered properly.
No Video Stream: Make sure that the ESP32-CAM is connected to the same network as your computer.

Conclusion

Congratulations! You have successfully set up an ESP32-CAM to stream video at 640×480 resolution and 30fps using MJPEG over HTTP. You can use this setup for various applications such as monitoring your home or implementing a security camera. Explore further by adding features like motion detection or recording capabilities!

Stream 640&#215;480 Video from ESP32-CAM to Browser Using MJPEG over HTTP