Raspberry Pi IO Board
A simple adapter board to allow raspberry pi talk to other logic level stuff, i.e. LED, switches, sensors.
What does this do?
Just few optos to isolate raspberry pi's 3.3V logic from higher voltages. Also some mosfets to allow PWM LED. Only a test board, gonna be done again in short while.
Few pics, to have a look at...
Yeah, i messed (forgot?) MOSFETs' wiring. Had to s/c raspi's GND to the output supply GND to make it even work for testing purposes.