Quadrature counter / rotary encoder wiring

[petersaj]

Port2 is designed to act as a quadrature counter - how should we wire an input to use that quadrature counter?

Specifically, we would like to connect a rotary encoder (Kubler 05.2400.1122.1024). We need to know which pins of the Port2 RJ45 connector should accept the GND/+V/A/B inputs.

[filcarv]

The Kubler 05.2400.1122.1024 can use 5 Volts as a supply, so you can connect directly to the Harp Behavior.

The connections would be:
RJ45 (pin 4) - 5 V
RJ45 (pin 5) - GND
RJ45 (pin 2) - DIO - B
RJ45 (pin 1) - DI - A

You can use the Harp Behavior Port Breakout that already has the connections exposed. Just need to connect it to Harp Behavior's Port2 using an ethernet cable.

In order to enable this feature, you need to write the value 4 to a specific register (ADD_REG_EN_ENCODERS with address 82).
I'm leaving here a Bonsai Workflow that does this for you. Also includes the encoder events and a counter reset that can be asserted by pressing the key Space on your keyboard.

[HeRodrgues]

Hi guys, quick question: could I use the same bonsai workflow and a similar connection to the Poke Breakout with this flowmeter?
https://www.ato.com/Content/doc/ATO-MF4000-gas-mass-flow-meter-user-manual.pdf