to – Hamtech Electronics Technologies https://hamtechtechnologies.com Sun, 30 Nov 2025 17:14:56 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.3 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp to – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 CH340 USB to Serial https://hamtechtechnologies.com/product/ch340-usb-to-serial/ https://hamtechtechnologies.com/product/ch340-usb-to-serial/#respond Thu, 20 Nov 2025 19:51:24 +0000 https://hamtechtechnologies.com/index.php/product/ch340-usb-to-serial/ The CH340 USB-to-Serial module is based on the CH340G chip, offering reliable USB-to-TTL conversion for embedded systems and microcontroller projects.
It supports both 3.3V and 5V logic levels, making it compatible with a wide range of devices.
This module is ideal for uploading code to Arduino clones, flashing firmware on ESP8266 modules, debugging UART communication, and connecting PCs to serial devices.
The CH340 is plug-and-play on most operating systems with available drivers, providing a simple and inexpensive alternative to FTDI-based programmers.

Key Features

  • CH340G USB-to-TTL Serial Converter

  • Supports 3.3V / 5V selectable output

  • Onboard TX/RX and power indicator LEDs

  • Stable serial communication for programming and debugging

  • Compatible with Arduino, ESP8266, ESP32, and other TTL devices

  • Compact and easy-to-use module

  • Cost-effective solution for serial communication

Specifications

Feature Details
Chipset CH340G
USB Standard USB 2.0 Full-Speed
Logic Levels 3.3V / 5V selectable
Communication Baud Rate Up to 2 Mbps
Interfaces TX, RX, VCC, GND, DTR, RTS
Operating Voltage 5V (USB input)
Output Voltage 3.3V / 5V selectable
LEDs Power, TX, RX
Dimensions 43 × 18 mm (approx.)

Applications

  • Programming Arduino (Pro Mini, Nano clones)

  • Flashing ESP8266 (ESP-01, ESP-07) and ESP32 modules

  • Serial debugging and monitoring

  • USB-to-UART interfacing for embedded systems

  • Interfacing GSM/GPS modules with PCs

  • IoT device development and testing

Compatible Boards / Circuits

  • Arduino (Pro Mini, Nano, Uno clones)

  • ESP8266 (ESP-01, ESP-07, ESP-12)

  • ESP32 Development Boards

  • GSM/GPS modules

  • Any device requiring USB-to-UART TTL communication

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