I am new to agopengps and have set it up to control my 3 section boom sprayer. When in simulator mode everything seems to work fine and it turns each section on and off as required. The problem occurs when the system is using GPS in the section control comes on for a couple of seconds then blinks off and on continuously. It is the Arduino control which is intermittant - the arduino turns the relay switches off and on continuously repeating.
I am not using any auto steer system.
GPS seems to have good signal and it happens even when on manual control and stationary (and so simulating the section working.
I provide power from a 5v supply so as not to drain laptop battery, but it happens using usb power as well.
I wondered if it is trying to do autosteer or something which requires a setting to turn off ?
Thanks for your interest
Yes using V5 with Nano connected via USB
GPS is stable and I have an RTK base station which it is connected to (happens both with RTK connected and not connected), middle of large open field on hill so good visibility of sky. For speed do you mean tractor speed ? if so only going 8 - 10 kph.
I have done this both driving and shop tests with the same result - when on simulator it works fine and operates the relays correctly, but when you turn off simulator and use the gps whilst the laptop display correctly shows when the sections should be on or off the actual relays start to flick between on and off.
For the adjustment of min spead for section control do you mean the speed it starts spraying which is in the same section as boom section widths - if so it is set at 0.5kmh (typo?)
I was not sure what should be set up on the work switch page ?
Thanks for this - it works fine when in simulator mode but I will try with a different relay board and larger wire.
The arduino nano is powered by both an external 5v supply and the usb so it is putting 5v to the relays. I will double check the relays work on that voltage as I guess it could be if less power is getting to it when everything is working then that could cause the issue.
Thanks - I have done some further work on it this morning and both given the relay an independant supply and tested with another relay - neither made any difference so I am heading back in the gps direction and arduino now.
As I am not using steering what which sketch would you use for only section control ?
Also not sure where to get the gps hz ? or watchdog timer ?
The only other thing I can think to try at this stage is to replace my usb leads incase they are making the connection intermittent.
Your gps looks like it’s only sending data at 1hz. In the first picture just below IMU it says 1~7.2 the 1 is the gps hz. I’m not sure if it will work at that rate. I haven’t used section control board but for autosteer we need at least 5hz and preferably 8-10hz. Someone else may be able to confirm what is minimum for sectioncontrol.
I would reconfigure your gps to output gpgga and gpvtg at 10hz and see what happens.