I having trouble soldering wires to pin legs cause I cant get the wire to stay there or close enough to the leg when I'm soldering it. HAs anyone got any tips?
Best thing is to clamp what you're soldering to, tin the wire, get some solder on the leg, add the wire while solder is still molten, hold it still and remove the iron. Takes a bit of practice.
cool thx. I was trying it before and the best way I could get it was to tin both of them then put the wire near the leg and heat both of them. But your way sounds better since I dont have to try and hold and solder at the same time.
Apart from this technique, I find the "helping hand" (or "third hand") tool very helpful - can keep the two components in place while you have your hands free for the soldering iron and solder wire:
Depends what you want to do.
If you just want the 08M to read the voltage between Vcc and 0v, then use a 10K POT.
Anything lower will just pull more current with no other advantage.
Anything higher will be outside the source impedance spec for an analogue input.