Hello folks, I've been working with Arduino's for a little while but could really really do with an urgent quick 2nd opinion on the attached circuit. I hjave tested most of it but its the 4N35 I have not had a chance to try and need to know if I have specced and incorporated it correctly.
I have have researched and tested as much as possible but TBH its stretching the limits of my knowledge a bit The motors are two 24 volt 13 watt fans. The control signal is remote just on or off, the Sketch then uses this to switch from one fan to another with timers. As the control signal may be coming from some way away I thought it best to use an opto isolator in case of spikes. Not used one before so hope I got it right. Comments very much appreaicted please, pretty please! Many thanks in advance Fiddian