Rate control how to wire

[cheeseman]

I am setting up a rate control board. I’m ready to hook up the wires and I have questions. I have been unable to find any directions of what the terminals pressure, workswitch, flow 1, flow 2 are to be connected to. My old sprayer has no pressure sensor, it has a sprayer mounted gauge only. What does the workswitch connection do? Is it needed? My flow meter is a Micro Trak FM 750 GFN, and it has 2 wires. How would it be connected to the board?

If there are directions for all this and I missed it, can you give me a link of where it is?

TIA

[SK21]

Rate_Control/Teensy/RC11-2/RC11-2 PinOut.PNG at main · AgOpenGPS-Official/Rate_Control · GitHub The pinout for RC11-2. M1A is flow control motor connection 1. M1B is for the second connection on the flow control motor. R1-R8 are relays to control the sections. Work switch is optional. Pressure is optional. This sensor works: Pressure Transducer Sender Sensor Ceramic Pressure Chip Pressure Transducer for Oil Fuel Air Water 1/8" NPT Thread Stainless Steel Pressure Sensor (100PSI) : Amazon.ca: Industrial & Scientific I also use a FM750 GFN. It has a 3 wire connector. Your 2 wire connector may be signal (Flow1) and ground.

[cheeseman]

We are using the nano RC 12-3 version

[cheeseman]

Does the rate controller work better if there is a pressure sensor installed? Or is is just for display of pressure?

[SK21]

Rate_Control/Nano/RC12-3/RC12-3.jpg at main · AgOpenGPS-Official/Rate_Control · GitHub. Add a MD13S to control the rate motor/valve and a relay module for the section valves: SainSmart 8-Channel Relay Module : Amazon.ca: Automotive

[SK21]

It is mainly just for display. It can prevent over-pressure if set up that way.

[cheeseman]

I have that all done already, just had questions how to hook up the wires. Thanks for all the information you’ve sent.

[cheeseman]

So how do we test the rate control? We have it connected on a computer and have the simulator on and drive and it does not click the relays when it shows on the simulator that it is spraying. Are we testing it wrong?

[cheeseman]

The section control relays stay on even when the software (AgOpengps and RC) are shut down. Any ideas what to check? We weren’t sure if the 4 relay board is working so plugged in a single relay board as shown.

[SK21]

You can test the relays by using the on-screen switches in manual. Are the sections and relays setup correctly? Is the app communicating with the module. Green 1? PGN Time about 0.200? PGNs flowing back and forth?