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There are a number of widely used methods to connect microcontroller projects to USB, all of which are not entirely satisfactory:
- The commonly used FTDI chips are somewhat expensive, and their manufacturer has made some unpopular decisions with their driver support (although technically, the FTDI drivers work quite well).
- Atmel also offers microcontrollers with built in USB, but those also tend to be a bit expensive.
- Software USB stacks use a considerable proportion of the microcontroller’s processing power, and as not always as reliable as hardware solutions.
When I therefore heard about a very cheap (40 cents a piece) USB to serial converter IC, the WinChipHead CH340G, I was eager to try it, and bought a few (I bought mine on AliExpress, but they are now also available at Boxtec).
About The Author
Ibrar Ayyub
I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.
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