CH552 SCH

bad USB

keyboard and touchpad

deej

https://github.com/omriharel/deej

DAPLINK

USB Blaster

https://github.com/xjtuecho/CH552Nano/tree/main/FW

SN74AVC4T245PWRE4

EZP2019

The EZP2019 is a popular, high-speed USB SPI programmer used for reading and writing BIOS/firmware chips in electronics like TVs, DVDs, and computers, supporting common 24, 25, and 93 series EEPROM/Flash memory, featuring fast USB 2.0 speeds, automatic chip detection, and offline copy functions, making it a versatile tool for appliance repair and electronics hobbyists.

USBASP

programmer

N76E003 ICP programmer

sound detection

ref