Ye Olde Unidirectional Level Shifter - copy

@twerpling

10 years ago

https://everycircuit.com/circuit/5680161629405184

An Olde Fashionede methode of unidirectional level shifting. Thermally unstable, dependant on component values, but technically functional. The Zener Diode can be removed for no over voltage protection. Adjust cap for IO speed.