Updated CH340G board

Some weeks ago I blogged about my project of a minimal board based on the CH340G chip. After some tests, I slightly modified the project: [checklist] I added two leds that blink when data are transmitted/received I added a jumper that allows to decide if you want power supply (5V) in the connector or not added a 10nF capacitor to make…

CH340G board

On this site I’ve already posted about the CH340G chip, manufactured by a chinese company and often adopted as a cheap solution when a USB -> serial converter is needed. As the chip package (SOP16) is quite easy to solder, I ordered some ICs from AliExpress and I designed a minimal demoboard, based on the reference schematics: You can download Eagle files (both schematics…

Arduino clones with CH340G IC

Recently, I received some Arduino clones, mostly from chinese webstores, that use the CH340G chip as USB-to-serial converter instead of the more common (and I suppose more expensive) FTDI chip: Windows natively does not support that chip, which is not automatically recognized: You must download the driver from the manufacturer’s website. Once unzipped, you can update the driver…