Microcontroller based schematics, Circuits and Diagram
AT89C2051 PCB
LEAP#394
8051 USB PROGRAMMER under Repository-circuits -20339- : Next.gr
Program Any IC, Micro-Controller | AT89S52, AT89S51, AT89C51,AT89C52 | Universal ISP Programmer | - YouTube
MiOYOOW C51 6-Digit DIY Digital Electronic Clock Kit AT89C2051 Chip Alarm Clock Kit Soldering Practice Learning Kits with USB Cable and English Manual for College High School Education - Amazon.com
KeyGrabber - Hardware Keylogger - Open source DIY hardware keylogger