The module is sending but not receiving data.
Ok. And what can be the problem ?
Ok. It is green now (i do not know why???) Also the switchbox is green. But is it normal that the on screen switches donāt work anymore when there is a switchbox ?
Yes. Switchbox takes priority.
I am preparing RC11 for use with a 9 section sprayer. Have build a switchbox with a mux to enable this. So far, so good. To be able to have 9 section relays I use the RelayDrivertest5 board with 8 extra relays. Now I have trouble configuring this. How do I assign pins to the sections? When I select the PCA9555 as relay control it seems that all the sections are expected to use the expansion board. Is there a way to use 8 PCB relays and 1 external relay for the sections?
Your right there is missing code. Iāll have a look at it.
Hello, several of us are trying to use variable rate application via mapping. Weāre looking to send the desired rate directly to a spreader or seeder. The machine handles the regulation itself. Would it be possible to transmit only the total desired rate without the variation currently calculated by RC_Rate based on speed? (We want the dose/ha, not the application rate/km/width).
Perhaps we simply havenāt found or understood an option, if thatās even possible?
The flow rate variation is currently applied to the entire width of the implement. Is there a plan to apply it by section? Iām thinking specifically of a fertilizer spreader capable of varying independently on the left and right.
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All this could be done. How does the machine communicate? Over serial? What is the protocol? Do you have any information about the machine control unit?
When the machine maintains a fixed rate, variable control is easiest to add by sending it a modified speed signal. Instead of connecting it to the tractorās ISO output or wheel sensor, you can connect it to a rate controller, which will generate the signal. This will work with any machine without the need to figure out communication protocols.
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Hello, Iāve searched everywhere for the option to send the application rate regardless of the width, but I canāt find it. RC sends a rate based on the programmed total width. (I did find the option to send a constant rate regardless of speed or the number of open sections).
I only need to send the rate, not the ratio to the width.UPM(rate) doesnāt correspond to the displayed kg/ha; itās a ratio to the width. If I change the width in the parameters, the UPM will be different again. However, I only need the rate per hectare. I could create a ratio in the code, but that would mean modifying it every time I change the spreading width.
In simpler terms, if the target rate is 100 kg/ha, I want the UPM to be 100 regardless of the speed and width. The spreader only needs that.
That can be done. The RC code would need to be modified. Where should this be sent? How will the spreader connect?
Thanks for the quick response. Have been using it in the field now, The relays work fine, but in one occasion the external relays worked opposite. (probably after changing the invert relay setting?).
Another question, my control valve is a motorized pressure regulator which may need some time to adjust when a lot of sectons are opening simultaneously. That is why I am used to prepare for this by manuallly adjusting the regulator before the start of a pass. It is rather inconvenient that the manual setting does not work when the master switch is off. Also, when manually changing the pressure the target rate gets adjusted. Is there a way to change this behaviour?
You would like to prime the sprayer before you start? There is a prime mode. It works with a physical switchbox momentary master switch. You hold the switch in the on position for a predetermined amount of time and it will go into the prime mode. The tractor can be stopped. RC will use a simulated operating speed to set the required flow rate. The master switch has to be on. When using metered bypass it could work with the master switch off since the flow would still go by the flow meter, but back to the tank. If this is what you need I can see if I can edit the code to make it work.
Oh very well if the RC code will be modified. Currently there are several projects, CAN communication with an Amatron (just send it the dose), communication with ASD protocol (same transmission of the desired dose), and a more universal project where we will set the dose to 100Kg/ha to actually put a % of the dose set on the original box (the dose adjusted by modifying the virtual speed).
Prime mode does not seem to fit my setup.
The master switch is toggle switch in my switchbox and controls a bypass valve. With master switch off there is no flow through he flowsensor. For me it would be ideal when the rate plus/min monetary switch would always simply adjust the pressure regulator, independant of master switch position or auto-mode. (this also how it used to work on this sprayer).
The external relays dont work after making a turn. (have to power-cycle the RC to get them to work again) Probably easier to get a 16 relay module and have them all external?)
RC was designed to use a momentary master switch. This allowed the on-screen AOG auto and manual buttons to still control the sections. If an on/off toggle switch is used the AOG auto and manual buttons will have no control. This may be an acceptable trade-off to use a switchbox on/off toggle switch. It would take some code changes to get this to work in RC.
Updated app code to support maintained (non-momentary) master switch, untested. Requires the updated module code in the repo branch. Rate (pressure) can be adjusted with the master switch off and independent of auto mode. Updated help pages and user manual. GitHub - SK21/AOG_RC at FieldBased Ā· GitHub
I did some testing today, using the firmware and the app both from the Fieldbased branch.
I had trouble saving the module config (remote relays , invert flow etc.) and could not get the remote relays to work. (save button greyed out)
I noticed PWM for the control valve not getting higher than 100. (not enough to get the valve moving) (this used to be a byte value max 255?)
PWM control max is a percentage. 100 % = 255. I am not sure why you couldnāt save the changes. The button works in testing.