I think the ground was connected to D2 of the nano instead of ground of the pcb. I think that is why there was no power on the 10 o’clock pin.
I verified also with Raven tech support, your pinout is for sure correct. 10 o’clock is power 4.5-16 volts red wire, 2 o’clock is ground green wire and 6 o’clock is black signal. It seems as though the sensor is drawing too much amperage at 2 amps on the power wire with only ground hooked up. Before, when i would hook up the signal to the d2 or d3 it would start to smoke the c2 and c4 capacitors. Now I can’t even hook up power and ground to the flow meter from the 5 volt supply, which measures .6 ohms across the power and ground pin on the flow meter disconnected. I’m thinking flow meter sensor is bad? I was connected like SK21 said earlier with my ground going to the D2 pin, signal to D3 and power to 5v. It’s corrected now, thank you! Is there any code that changes what the D2&D3 pins do or accept? My understanding this meter puts out a square wave of 5 volts to 0 volts going into D2or3?
torriem, this is a turbine based meter. I’m going to try hooking up to 12 volt battery now and just test off the pcb. I hope i didn’t smoke the capacitors on the board. Any easy way of testing the capacitors? They’re not burnt at all. The temp gun showed 105 degrees at most. The 5 volt regulator is still supplying 5 volts so that part is good!
Also, the D2&D3 pins should see a square wave of ground signal or was I right by it seeing 5v to 0v signals of the signal wire from the meter? The 2 wire meters from what everyone talks about on here are a square wave ground trigger, so can the D2&D3 pins accept a trigger of 5 volts also? Or will that cause communication errors or smoke? I’m going to get a replacement right now and test the signal wire on a 12volt battery to see what it’s supplying on the signal wire!
D2 should see 5v or 0v signals from the sensor. 5v is no problem for the nano pins. If you are only using one sensor then D2 is used for signal, D4 is dir and D5 is pwm. Here is a hookup diagram for RC5. RC8 is similar.
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Fixed the Raven flow control problem, SK21 was spot on with the pinout of the board! Very helpful thank you, I had questioned the motor controller from the RC8 board for the 4 wire harness as the RED wire does not get used. Only the DIR, PWM and ground. The Raven RFM15 flow meter accepts 4.5-16VDC and outputs 5-0 vdc square wave on the black signal wire to the D2 terminal. MAKE sure nobody hooks up the power and ground supply to the meter as it looks on the internet or even as the diagram above from SK21. This is a pin insertion diagram as i’ve included in my photos. Raven tech support mislead me twice to them telling me this was wiring staring at the open end face of the connector on the flow meter. I smoked two sensors and luckily Raven is standing behind there wrong doing. Thank you guys once again for helping me through!
Here is the other picture as if your looking at it like in the pinout from the internet (right on Raven website).
I guess Torriem was right the other diagram was the mirror image. Good thing they gave you another sensor.
the link appears to be broken 
Here is a newer version of the rate app and ino file. The ino file can be installed with the PCBsetup app. Release update config, change menu, edit I/O driver file · SK21/AOG_RC · GitHub
I uploaded the new rate app and the rc nano ino file. I played with it morning, but it didn’t work. The mode is constantly red.
I tried again in the evening and it worked. I wonder why.
What do you change with module time and sensor time and min upm? My further questions are: 200 l /ha, if I want to spray proportionally, what should I set for this?
Which flowmeter do you recommend: I can buy Arag (orion) or polmac type
https://polmac.it/catalogo/en/polmac-flussimetri/rapid-check-versione-radiale
my settings:
On the Arag page it shows a chart with the number of pulses per litre for each flowmeter. This is the number you enter on the Product rate page “Sensor Counts/Unit”. But I think it outputs 12V. This will not work with the pcb, it needs a 5V signal. Once you find a flowmeter, enter its counts/unit and 200 for “Base Rate”.
Hello SK21 and Kovari;
Arag usually uses 250 pulses/liter, that means 1 liter flow when it receives 250 pulses, magnetic flowmeter is 2 times more expensive than turbine flowmeters, but the advantage is that it does not need to be cleaned frequently because there is no turbine and the error rate is lower, I used both arag and polmac, magnetic and I used it with turbine, if the price difference was small, my choice would be magnetic, but the price difference is large, I am sending you the latest Polmac model that I bought and I am satisfied with, and the delivery times seem very long. I used optocoupler for 5 volt signal output in Arag, but when I used optocoupler in polmac I couldn’t get the pulses, and in polmac it worked fine without optocoupler.
https://polmac.it/catalogo/en/catalogsearch/result/?q=00375804
https://polmac.it/catalogo/en/catalogsearch/result/?q=41300399.2AM
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I installed an Arag Wolf flowmeter. The system worked well in Sim mode. I tested it at work today. When I started spraying new ground, after 5 seconds, Mode turned red. The RC port is disconnected from the system. And I couldn’t reconnect.
Are you using usb or ethernet? Are you using PCBsetup? Check the module ID # is correct. It has to be set in the nano firmware and in the rate app. Uncheck simulation mode.
Im currently assembling an RC8 PCB. I ordered the box from the BOM. Does anyone have any pics of how your boards are secured to your box? Box mounted on a rig? Thanks again to @SK21 for the design and support!
I just put a tin or plastic bottom in the box and used M3 standoffs for the pcb.
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