electronics Mar 30, 2026 ◯ 1 min read

ESP32: Setting Up for Arduino IDE

esp32arduinomicrocontrollers

// electronics — 10 mins

The ESP32 is a powerful dual-core microcontroller with integrated WiFi and Bluetooth. To program it via Arduino IDE, you must install the official board core.

Requirements

Arduino IDE 2.x
Micro-USB or USB-C cable
ESP32 Development Board

Process

1. Board Manager URL

Open Preferences in Arduino IDE. Add this to 'Additional Boards Manager URLs': https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

2. Core Installation

Navigate to Tools > Board > Boards Manager. Search for 'esp32' and install the version by Espressif Systems.

3. Port Selection

Plug in your board. Under Tools > Port, select the COM port that appears. If no port appears, install the CP210x or CH340 drivers.

4. Upload Settings

Select your specific board model (e.g., 'DOIT ESP32 DEVKIT V1'). Set the Upload Speed to 115200 for maximum reliability.

> Pro Tip: If you see 'Connecting...' but it fails, hold the BOOT button on the board while the upload starts.