This is a memory game, similar to Hasbro's Simon, implemented entirely with Relay-Diode-Resistor logic. It contains 16 words, 2bit/word DRAM made with diodes and capacitors, two 4 bit counters with built-in comparator and zero test, one 2 bit random number generator and control logic. I'm working on this as a hobby, in my spare time, since 2017 (5 years now)..
Files
integración_relés_04.py
Oscilator (simple and 3 element ring) and Counter simulator in Python (using Odeint, pure analog electronics).