I'm using a SparkFun MOSFET kit like this one:
and I'm confused as to how to wire this kit up. I've read some of the forums, but I haven't been able to find a simple example of how to use this kit with an external power source (not pulling from the Arduino). I'm worried about blowing my board, so I'd like to get some advice before I wire everything.
As it is set up, I have a separate power supply running my Arduino Uno. I also have a 6 volt battery to run a small pump.
The kit has a 3 screw terminal on one side (labeled C, +, and -) and a 2 screw terminal on the other (+ and -). I'm assuming I should wire up the kit as follows:
3 screw terminal
Digital pin 3 on Arduino -> C Terminal on kit
Positive terminal on 6 volt battery -> + Terminal on kit
Negative terminal on 6 volt battery -> - Terminal on kit
2 screw terminal
- Terminal on kit -> Positive terminal on pump
- Terminal on kit -> Negative terminal on pump
Can anyone advise if this is correct? And should I be adding any kind of resistors or diodes to this wiring plan?