The Arduino AA Undershield

Step 3 Start soldering

It's time to solder all the components to the PCB. I've included the schematic and some pictures. It's a good idea to start with the 8 pin socket, cause then it's easier to get an idea of where the other component should be mounted. You'll probably have to mount the two electrolytic capacitors and the coil horizontally, so that they're not taller than the spacers, you use to mount your Arduino with.

When you're done soldering, check your your circuit for mistakes. If you didn't find any mistakes, then hook up your circuit up to the batteries and a voltmeter. You should get around 5V and it should not be higher than 5.30 volts or lower than 4.90 volts.