ESP8266 Arduino Development Board
From olighker
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ESP8266
ESP8266 D1
Published
Compatible with Arduino
Introduction
1.The ESP8266 D1 Board is an open-source development board based on the ESP-8266 Wi-Fi module. It follows the Arduino UNO board layout and pin-header arrangement,integrates a Micro-USB serial chip and a 5V/1A switching power supply, and lets you write and upload programs directly with the Arduino IDE — a cost-effective choice for getting started with IoT development.
2.The board ships with its hardware and software resources fully open, allowing secondary development. You can use it directly as a Wi-Fi-enabled Arduino board, or build on it by trimming the low-level firmware and expanding peripheral interfaces. It suits IoT education, smart-home prototyping, and wireless data acquisition scenarios.
Specifications
| Item | Specification |
|---|---|
| Core module | ESP-8266 Wi-Fi module |
| Programming | Arduino IDE (Arduino-compatible) |
| Digital I/O | 11 I/O pins |
| Analog input | 1 ADC channel, 0–3.3 V input range |
| Wireless upgrade | OTA over-the-air upload supported |
| On-board power | 5V/1A switching power supply (input 5–12 V) |
| Flash | 4 MB |
| SRAM | 32 KB |
| DRAM | 80 KB |
| Clock frequency | 80 MHz / 160 MHz |
Hardware
Size
FAQ
- What if unable to enter download mode?
- Check boot button timing, USB driver, and data cable.
- What if peripheral communication is unstable?
- Verify logic levels, ground, bus speed, and terminal connections.
Downloads