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NodeMCU ESP8266 V3 – IoT WiFi Development Board ch340

$4.80

An open-source, powerful development board combining the ESP8266 microcontroller with integrated WiFi, making it the ideal choice for IoT (Internet of Things) and home automation projects . The board supports programming in Lua (native) and C++ (via Arduino IDE), featuring a built-in Micro-USB port for easy programming and powering without external programmers .

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Description
Product Details

Key Features

Powerful MCU: ESP8266 processor at 80MHz with 4MB Flash and 96KB RAM .
Built-in Wireless: Supports 2.4GHz WiFi (802.11 b/g/n), capable of operating as Access Point (AP) and/or Station (STA) .
Easy Programming: Onboard CH340G USB-to-Serial chip allows direct programming via a Micro-USB cable .
Rich GPIO Pins: 11 GPIO pins with support for PWM, I2C, SPI, UART, and 1-Wire .
Analog Input: One 10-bit ADC channel for reading analog sensors .
Multiple Language Support: Programmable using Lua (NodeMCU firmware), Arduino IDE (C++), or MicroPython .
Practical Applications: Perfect for smart home systems, remote sensors, web-controlled applications, and IoT robotics .

Key Technical Specifications

Specification	Value
Microcontroller	ESP8266 (32-bit RISC)
CPU Frequency	80 MHz (upgradable)
Flash Memory	4 MB
RAM	96 KB
WiFi	802.11 b/g/n (2.4 GHz)
GPIO Pins	11 (supports PWM, I2C, SPI, UART)
ADC Channels	1 channel, 10-bit resolution
USB-to-Serial Chip	CH340G
Operating Voltage	5V (via Micro USB) / 3.3V (logic)
Board Dimensions	60 × 31 × 13 mm
Weight	10-17 grams