D1 Mini ESP32 Development Board
The D1 Mini ESP32 is a compact microcontroller board that brings the dual-core power of the ESP32 to the popular D1 Mini form factor. It features integrated Wi-Fi and Bluetooth (dual-mode) and is designed to be compatible with most D1 Mini shields. This board uses either the CP2102 or CH9102F USB-to-Serial converter for programming and power via the Micro-USB port.
Product Features
- Dual-core ESP32-WROOM-32 module with 2.4GHz Wi-Fi and Bluetooth capabilities.
- Small footprint compatible with D1 Mini shield ecosystem.
- Onboard reset button and built-in LED indicator.
- Breadboard friendly with 2.54mm (0.1") pitch headers.
- Supports multiple programming environments including Arduino IDE, MicroPython, and ESP-IDF.
- USB-to-Serial interface (CP2102 or CH9102F) for direct PC connection.
Technical Specifications
- Microcontroller: ESP-WROOM-32
- Operating Voltage: 3.3V
- Input Voltage: 5V (USB or VIN)
- Flash Memory: 4MB
- Clock Speed: 240MHz
- SRAM: 520KB
- Digital I/O Pins: 10 (all with PWM and interrupts)
- Analog Input Pins: 4 (Max input 3.2V)
- Connectivity: 802.11 b/g/n Wi-Fi + Bluetooth 4.2 BR/EDR and BLE
- USB Driver: CP2102 or CH9102F (Model dependent)
Pinout Reference
| Pin Label | ESP32 GPIO | Function |
|---|---|---|
| IO26 | GPIO26 | DAC2, ADC2_CH9 |
| IO25 | GPIO25 | DAC1, ADC2_CH8 |
| IO17 | GPIO17 | TX2, UART2 |
| IO16 | GPIO16 | RX2, UART2 |
| 3V3 | - | 3.3V Output |
| 5V | - | 5V Input/Output |
| GND | - | Ground |
Package Contents
- 1 D1 Mini ESP32 Development Board
- 1 Set of Male Header Pins (Unsoldered)