Optocoupler 4N33 Answered
Hey all, I am building an arduino firework controller and have a question about optocouplers vs relays. I was planning on using 2 9volt batteries to power a nichrome igintor. Instead of using a relay I was planning on using a 4n33 optocouplers to save money. Is this ok? Also what is the diffrence between a 4n33 and 4n35? Thanks in advance!