Better use single mode as described:
In PCA9685 Single mode
you should connect like this:
and so you are able to use S8 for Master Valve.
Maybe, someone repair the pcb trace, anyway, sensor should connect as mentioned above.
Cant get rc15 to work like that, for test just connect pin2 to section 1 on sprayer and pin 3 to section 2 but when need open all valve one is open another is close when need be close just swap position. Try paired single, and nothing. What need to be done to have power on pins 2-8 and 14 for main valve?
@SK21 You have recently changed RC15 firmware “paired/single” output handling. Please can you check it because two members mentioned problems, connecting RC15 valve in single mode without correct function:
I believe the Arag valve is 2 wire. In that case used the paired pin-out. When a section is on either A or B will have power and the other ground. For example S1A will have 12V and S1B will be ground when the valve is off. S1A will be ground and S1B will be 12V when the valve is on.
For the Teejet valves that are 3 wire here is a revised pinout.
There was a misunderstanding of how the DRV8870 motor driver used for relays worked. Because of this the singe/paired options were removed and replaced with just one option for the rc15.
1 Like
Ok, can RC15 give 12v on S1A and S1B pin on the same time?
I didn’t notice it either, doesn’t work with DRV8870 motor driver. Thx
That’s not possible!
Then i cant control 7 section, master valve and pressure valve? If use 7 section, dont have place for master?
For pressure control valve i use 17,16 pin but cant get it to work what need to be done to get power on 17, 16.