OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Custom OSPi problem › Reply To: Custom OSPi problem
September 26, 2019 at 11:54 pm
#62721
bretskee
Participant
Hi,
from you schematic, it seems you have connected to the raspberry connector with the incorrect orientation. You have connected pins 26, 28, 20 and 34 rather than 17, 11, 13 and 15. Also you have no ground reference to you raspberry. You need to connect a common ground between your boards explaining why you get odd results when touching your keyboard.
Brett