ES8266

The ESP8266 NodeMCU V3 is a simple, low-cost Wi-Fi development board that makes building IoT projects easy. Just plug it in with a USB cable, program it using the Arduino IDE, and connect your sensors or relays. With built-in Wi-Fi, 11 digital pins, and 1 analog input, you can bring your ideas online in minutes.

It’s perfect for smart home devices, automation, data logging, or learning how to connect projects to the internet.

Highlights

• ESP8266EX @ 80/160 MHz

• 11× Digital I/O (PWM capable), 1× Analog (0–3.3 V)

• 4 MB Flash, ~160 KB SRAM

• Built-in 2.4 GHz Wi-Fi (802.11 b/g/n, AP/STA)

• Micro-USB for power & programming

• 3.3 V logic with onboard regulator

• USB-to-serial chip CH340