How to Program ESP32-CAM

Published on: JAN 31, 2025 | Author: Jonahan

Introduction

The ESP32-CAM is a versatile and affordable module that combines an ESP32 microcontroller with a camera, making it ideal for IoT projects like video streaming, surveillance, and face recognition. However, programming the ESP32-CAM can be challenging because it lacks a built-in USB port. In this guide, I’ll show you two methods to program the ESP32-CAM:

• Using an Arduino Uno as a programmer.
• Using an FTDI programmer or USB-to-TTL converter.

What You’ll Need

Method 1: Programming ESP32-CAM Using Arduino Uno

Follow these steps to program the ESP32-CAM using an Arduino Uno.

Step 1: Install the ESP32 Board Package in Arduino IDE

To program the ESP32-CAM, you need to install the ESP32 board package in the Arduino IDE. Follow these steps:

Step 1.1: Open Preferences

Go to File > Preferences in the Arduino IDE. You’ll see the following window:

Step 1.2: Add the ESP32 Board Manager URL

In the Additional Boards Manager URLs field, paste the following URL:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

Click OK to save.

Step 1.3: Install the ESP32 Package

Go to Tools > Board > Boards Manager. Search for esp32 and install the ESP32 by Espressif Systems package.

Step 2: Wiring the Arduino Uno to the ESP32-CAM

Connect the Arduino Uno to the ESP32-CAM as shown below.

Step 3: Upload the Code

Upload the code to the ESP32-CAM using the Arduino IDE.

        // Example code for ESP32-CAM
        void setup() {
          Serial.begin(115200);
        }
        void loop() {
          Serial.println("Hello, ESP32-CAM!");
        }
      

Method 2: Programming ESP32-CAM Using FTDI Programmer

Follow these steps to program the ESP32-CAM using an FTDI programmer.

Step 1: Wiring the FTDI Programmer to the ESP32-CAM

Connect the FTDI programmer to the ESP32-CAM as shown below.

Step 2: Upload the Code

Upload the code to the ESP32-CAM using the Arduino IDE.

Conclusion

Programming the ESP32-CAM is easy once you know the right steps. Whether you’re using an Arduino Uno or an FTDI programmer, this guide will help you get started with your ESP32-CAM projects. Don’t forget to check out my website and YouTube channel for more tutorials and project ideas!