Dobrica Pavlinušić's random unstructured stuff
RD TC66C: Revision 2
RD TC66/TC66C Type-C PD trigger USB-C Voltmeter ammeter voltage 2 way current meter multimeter PD charger battery USB Tester

https://www.aliexpress.com/item/32968303350.html

https://sigrok.org/wiki/RDTech_TC66C

https://www.youtube.com/watch?v=rOlhibDUJgs

^ TC66C Reverse Engineering

https://ralimtek.com/reverse%20engineering/software/tc66c-reverse-engineering/

https://github.com/Ralim/TC66C

newer version: https://github.com/Ircama/TC66C