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Affordable, beginner-friendly Wi-Fi board based on the ESP8266 — the easiest way to put a sensor or relay on your network.
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NodeMCU boards made the ESP8266 famous: a cheap 80/160 MHz Wi-Fi microcontroller with 4 MB flash, a USB port and breadboard-friendly pins. This Amica-style V2 board is narrow enough to leave a row free on each side of a breadboard and uses the reliable CP2102 USB chip. It runs Arduino sketches, MicroPython, Tasmota and ESPHome, making it a favourite for simple smart-home devices.
| Module | ESP-12F (ESP8266EX), 80/160 MHz |
|---|---|
| Memory | ≈ 80 KB user RAM, 4 MB flash |
| Wireless | Wi-Fi 802.11 b/g/n (2.4 GHz) |
| I/O | 11 GPIO (PWM), 1 analog input (0–1 V on chip, 0–3.3 V on board), I²C, SPI, UART |
| USB | CP2102 USB-UART |
| Power | 5 V via USB or VIN, 3.3 V logic |
| Dimensions | ≈ 48 × 26 mm |
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