Strange CH340g USB to Serial Driver Error

Strange CH340g USB to Serial Driver Error

Recently, I discovered a strange and interesting issue. It became even more intriguing when intertwined with other related problems. Many development boards or small modules that require USB serial connections often use the CH340g chip from Nanjing Qinheng, so the driver is either automatically installed by Windows or downloaded from the official website as CH341SER.EXE. … Read more

Compact and Elegant Microcontroller: Ai8H2K12U

Compact and Elegant Microcontroller: Ai8H2K12U

1. Introduction Recently, I received the AI8H2K12U microcontroller sent by STC company. According to its datasheet, this microcontroller has built-in USB to serial port firmware, and it does not require USB driver installation. Furthermore, it can be paired with an external power control circuit and can work with STC’s ISP software to form the programming … Read more