Back on My Wrist: A 20-Year-Old Suunto X6M
Every now and then, while cleaning up, you come across something you
Jan Rydval
One transistor to help them all
Bidirectional Serial Communication — and a Surprise
After getting the firmware loaded and
IR Deep(er)dive
Now I have a working CL9 Core Universal Remote and an oscilloscope.
Chamaleon Ultra RFID
ID cards - how many do I have? Too many. An official ID
Oscilloscope to every home
I decided on the Rigol MHO984. It offers 4 channels, a logic analyzer, wider bandwidth, Wi-Fi, Bluetooth, Ethernet, and remote control capabilities.
CL9 Core Universal Remote
This remote is special because of the way it was designed. And it is more geekish than HP-41CX today. It uses a 6502 processor and 32 KB of static RAM together with a 4-bit processor serving the keyboard, display, and real-time clock.