open_sprinkler_docs_oct_2013
Open Sprinkler
The OSPi board contains a DC-DC converter that generates 5VDC which goes to the Pi on pins 2 and 4. The Pi generates 3.3Volts which is used to power the shift register which interfaces to the relay drivers.
open_sprinkler_docs_oct_2013.txt · Last modified: 2016/04/21 07:12 by 75.177.137.2