This board will make it possible to connect equipment used at the factory (ex: switches, sensors, relays, at all...) to your Raspberry Pi. It can isolate connected equipments from Raspberry Pi.
Note
Please import this library before using this repository. https://github.com/trihome/KiCad_MyLibrary
How to make
A prototyping board "HAT". GPIO pins can be freely selected.
- 4 isolated inputs and 4 isolated outputs.
- Selectable Sink(NPN) / Source(PNP)
- I2C-bus voltage-level translator (3.3 to 5 V)
- RTC
This is under CC-BY-SA.