OpenSprinkler Forums OpenSprinkler Unified Firmware OSBO with GPIOs Reply To: OSBO with GPIOs



David, the Raspberry Pi also uses 3.3v logic on gpio pins. This is generally sufficient to trigger standard 5v logic (or at least it works with all the relay boards that I have). I think BBB also provides a 5V rail if you need to power as well as trigger a relay board. Curious which relay board you are looking at and how your testing went. Pete