CH340

CH340 is a USB converter chip, which converts USB to serial UART interface or to printer interface. In UART mode, CH340 provides common MODEM interface signals, to expand UART interface of computer or upgrade common serial communication devices to USB directly.

Main Content

Let’s turn lights on with the computer the 433Mhz way

“A while ago I started using home assistant on a pi and bought some inexpensive 433Mhz ac wireless switches. However, after one month of intense use the Raspberry Pi didn’t have enough power, so I bought a cheap computer …

Ardu Keyboard

“Keyboards are one of the most important input device for a computer. A standard keyboard has more than 100 different keys for different purposes. Yet sometimes it feels like it’d be great if there’re some programmable buttons to …

Hiking Data Logger Using RFM69CW

“This hiking data logger is used to record a hike’s location, start and end time, temperature, altitude and barometric pressures. It will also audibly report altitude milestones during the hike. Even if you have no interest in hiking you …

Building an Arduino-Based SSD

“An ATmega8 acts as a controller for 8 EEPROM chips, letting other devices store data on it, such as config files and logs, via UART or USB. A Common Problem Normally, SD cards are used to store large amounts of …

How to Install CH340 Drivers

“Introduction In this tutorial, we’ll show you how to install CH340 drivers on multiple operating systems if you need. The driver should automatically install on most operating systems. However, there are is a wide range of operating systems out …

Combined ISP and FTDI Tool With Pogo Pins

“I’ve been reading Sapiens by Yuval Harari and one of the things that has been the most fascinating to me, is human beings ability to make their life better by envisioning and creating a tool that doesn’t yet …

STM32 Open Source Multimeter

“A multimeter, based on the STM32F103, which can measure voltage, current and power, both bipolar and in DC and true RMS. In short, I needed more multimeters at my lab. You can get these cheap Chinese “multimeters” from Ebay, but …

My open source ESC

“I’ve been trying to make a good ESC for years. My first prototype 3 years ago was working “good”. It was very big and the BEMF was not that good. It could reach decent speeds and you ahve that …

SparkFun Serial Basic CH340C Hookup Guide

“Introduction The latest iteration of the SparkFun Serial Basic Breakout takes advantage of USB-C and is an easy-to-use USB-to-Serial adapter based on the CH340C IC from WCH. With USB-C you can get up to three times the …