Everything seems to go OK, but when jumping pin 12 to the sensor pins (2,3,20,21) I only get a flash appearing on the Rx, not the Tx. Which I understand means that the arduino is receiving data but not transmitting.
Same result when hooking up one of the flow meters.
When I connect the arduino to my tablet - Kegbot app does not seem to recognize the flow meter. When trying to allocate a flow meter to a tap, the only option I have is kegboard.flow.0, which does not recognise any ‘pours’ (tested by blowing through the flow meter).