OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › 3.0 Expansion Board not working › Reply To: 3.0 Expansion Board not working
October 7, 2018 at 11:49 am #52898
All zone expanders have been tested and I doubt it’s the circuit board’s problem. The cable could be a problem for sure. The other thing to note is that don’t do hot-swap plug in — always power off the controller, plug in expander, and power it back on. The firmware only detects expander at booting, so if you plug it in after it’s already powered on it won’t detect the expander.