Wemos ESP32 D1 R32 WiFi & Bluetooth Development Board

Wemos ESP32 D1 R32 — Arduino UNO Form Factor with WiFi & Bluetooth

The Wemos ESP32 D1 R32 combines the raw power of the ESP32 dual-core processor with the familiar Arduino UNO form factor — giving you built-in WiFi and Bluetooth without changing your existing shields or workflow. It's the perfect upgrade path for makers who want wireless connectivity with zero layout headaches.

Drop it into your existing UNO-compatible setup and instantly add IoT capabilities to your projects — cloud dashboards, wireless sensor networks, BLE beacons, and more.

Key Features

• ESP32 dual-core Tensilica LX6 processor at up to 240 MHz
• Built-in 802.11 b/g/n WiFi and Bluetooth 4.2 / BLE
• Arduino UNO R3 compatible pinout — works with most UNO shields
• 4MB Flash memory
• 34 GPIO pins, 12-bit ADC (up to 18 channels), DAC, touch sensors
• Interfaces: UART, SPI, I2C, I2S, CAN, PWM
• Micro USB for programming and power
• 3.3V logic (5V tolerant on select pins)
• Supports Arduino IDE, MicroPython, and ESP-IDF
• Low-power deep sleep modes for battery applications

Ideal Applications

• WiFi-connected IoT sensors and smart home devices
• BLE beacons and proximity sensors
• Wireless data logging and remote monitoring
• Prototyping with existing Arduino UNO shields