controlling electronic expansion valve with arduino pid, sorry, can I find that pid, thank you very much
Pid is a control strategy.
You should be able to find more than one pid library and plenty of examples via your friend google.
What kind of valve do you have? What kind of signal does it take? Can you set the valve in a certain position with your code?
What kind of sensor do you have? What kind of signal does it give? Can you read it with your code?
What us your control target??? A certain value, slow pressure release???
Without these 3 it is useless to discuss pid...
fujikoki dc12v
Pulse fully open: 500; valve opening pulse: 32 20 20
Electrical parameters
Nominal voltage: 12v dc (10%), square wave
Mode of operation: 8-step motor with 4-phase permanent magnet pulse, direct type
Excitation method: 1-2 phase excitation, unipolar drive
Excitation rate: 30pps-90pps
The final excitation mode is maintained for 0.1 s to 1.0 s
Minimum operating time from fully open to fully closed: 5.8 s (920 pps)
Coil current: 260 ma/phase (20℃)
Coil resistance: 46 ± 3.7Ω/phase (20℃)
Degree of insulation of the coil:
regulated by ds18b20
if you can pid thanks
This is a forum where you are supposed to do the work, and we are supposed to help....
You have a lot to learn.
For starters to present your problem in an understandable way. My guess is that your last post contains info on the valve. You should make that more clear...
A lot of info is still missing... (see post #2).
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