Hi folks, i have a little project i am working on at the moment, i have an Arduino UNO connected up to 8 channel relay board, i am trying to drive a 220v spark generator to ignite a gas banger bird scarer, at the moment i have the Arduino connected to pc/powered via the usb, when the relay functions you hear the usb connect/disconnect sound from the computer, the spark generator is obviously causing some interference causing the usb to disconnect, the Arduino will also randomly stop/reset etc and will not operate reliably
The 8 channel relay has optocouplers and i have it powered via a separate 5v power source but this still does not help.
Is there some other device i can to isolate the Arduino, or some other way to wire the devices?
I have come across snubber diodes but not sure if something like that would help.
Any advice or assistance would be much appreciated, Thanks
8 channel relay module
220v spark generator