ESP8266 WiFi Development Board | CH340 USB | IoT MCU | Node MCU

The ESP8266 Development Board with CH340 is a low-cost, highly popular Wi-Fi microcontroller board based on the ESP8266 SoC. It features an onboard CH340 USB-to-Serial converter, allowing easy programming and debugging directly via USB without any external programmer.

With built-in 2.4 GHz Wi-Fi, TCP/IP stack, and support for Arduino IDE, this board is ideal for IoT projects, smart home applications, wireless sensors, and automation systems. It is widely used by students, hobbyists, and professionals due to its affordability and strong community support.

Key Features

• Based on ESP8266 Wi-Fi SoC

• Integrated 2.4 GHz Wi-Fi (802.11 b/g/n)

• Onboard CH340 USB-to-Serial converter

• Operating frequency up to 80 / 160 MHz

• Supports Arduino IDE, ESP8266 SDK

• Low power consumption with sleep modes

• Breadboard-friendly development board

• Ideal for IoT and wireless projects

Detailed Board Specifications

Core & Performance

• Microcontroller: ESP8266

• CPU Architecture: 32-bit Tensilica L106

• Clock Speed: 80 MHz (up to 160 MHz)

Memory

• Flash Memory: 4 MB (typical, board dependent)

• SRAM: ~160 KB

Wireless Connectivity

• Wi-Fi: 2.4 GHz 802.11 b/g/n

• Security: WPA/WPA2

Power

• Operating Voltage: 3.3 V

• Input Voltage: 5 V via USB or VIN

• Power Modes: Active, Light Sleep, Deep Sleep

I/O & Peripherals

• GPIO Pins: Up to 11 (board dependent)

• ADC: 10-bit (1 channel)

• PWM: Supported

• UART: 1

• SPI / I²C: Supported (software & hardware)

Programming & Connectivity

• Programming Interface: USB

• USB-to-Serial Chip: CH340

• Supported IDEs: Arduino IDE, ESP8266 SDK

Physical

• Board Type: Development / Breakout Board

• USB Connector: Micro-USB

• Pin Spacing: 2.54 mm

• Breadboard Compatible: Yes

Typical Applications & Uses

• Internet of Things (IoT) projects

• Smart home automation

• Wi-Fi controlled relays and switches

• Wireless sensor nodes

• Home monitoring systems

• DIY electronics and embedded learning

• Cloud-connected devices

Why Choose ESP8266 with CH340?

• Extremely cost-effective Wi-Fi solution

• Easy USB programming with CH340

• Strong Arduino and open-source ecosystem

• Ideal for beginners in IoT

• Compact and low-power design

Package Includes

• 1 × ESP8266 Wi-Fi Development Board with CH340