Hi guys Looking for a relay board for my Arduino preferably 16 channel. I have read that some prefer the sainsmart relay boards as they have optoisolators. I have being on SainSmarts web site and in the description some are 12volt and some are 5 volt. Does it matter, is that referring to the option…

help with relay board selection

Topic		Replies	Views
Power for Relay Board General Guidance	4	8366	May 5, 2021
How to power 16 channel relay Motors, Mechanics, Power and CNC	14	18391	May 6, 2021
relay board for arduino General Electronics	6	1770	May 6, 2021
5V or 12V relay board for Arduino? Motors, Mechanics, Power and CNC	7	5437	May 6, 2021
5 volt relays vs 12 volt relays General Electronics	6	1196	May 6, 2021