The ESP8266 is a low-cost, high-performance WiFi microcontroller widely used in IoT and wireless embedded systems. This development board integrates the ESP8266 module with USB programming support, voltage regulation, and GPIO breakout—making it easy to deploy in real-world projects.
It is fully supported by the Arduino IDE, MicroPython, and Lua (NodeMCU firmware), with extensive documentation and libraries provided by Espressif Systems. For WiFi-enabled projects on a budget, this board remains one of the best choices available.
Small board. Serious connectivity.
Key Features
ESP8266 WiFi microcontroller
Built-in 2.4 GHz WiFi (802.11 b/g/n)
Integrated TCP/IP stack
USB interface for programming & power
3.3V logic level
Supports Arduino IDE, MicroPython, NodeMCU (Lua)
Onboard voltage regulator and reset/flash buttons
Technical Specifications
Parameter
Value
Microcontroller
ESP8266
CPU
Tensilica L106
Clock Speed
80 MHz (up to 160 MHz)
Operating Voltage
3.3V
Input Voltage
5V via USB
Flash Memory
4 MB (typical)
WiFi
802.11 b/g/n (2.4 GHz)
GPIO Pins
Up to 11 (board dependent)
ADC
1 × 10-bit
USB Interface
Micro-USB
Board Type
NodeMCU / Dev Board
Weight
0.012 kg
Dimensions
5.8 × 3.1 × 1.3 cm
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