I am trying to use 2 channel relay module. with one channel relay, there is no problem, but with 2 channels it doesn't work properly. After working some while whether pneumatic valves start blinking(works and stops) or the ar4 software stops working.
I tried 5 channel relay module and try to use 2 different relay module separately as well.
Any idea?
pneumatic valves wired with 24v. signals go 5v via arduino.
I realized that the problem based on USB plug of arduino. When I feed arduino(I tried on arduino UNO and MEGA ) via an extarnal 5v adapter and UNPLUG usb cable, 2 relay works well. When I change it to USB plug again, it does work unstable.
I can use external adapter it to work properly. But how can I send command if I don't use USB cable? I can't send data via AR4 software.
@orcun-oruc-aykac Check your USB cable can send data + power. A lot of cheap cables are only for power (like charging a phone).
Thanks Johann. I checked USB cable. It works and gives 5v correctly.
When I plug power supply, which I use also for motors, to 2 channel relay module and power, it doesn't work stable: It works and syops after a while. I think the problem may be about GND. BTW: I use 2 channel at the same time.
I think using Arduino and relay module might not be stable way. :/
Thanks Johann. I checked USB cable. It works and gives 5v correctly.
When I plug power supply, which I use also for motors, to 2 channel relay module and power, it doesn't work stable: It works and syops after a while. I think the problem may be about GND. BTW: I use 2 channel at the same time.
I think using Arduino and relay module might not be stable way. :/
