In the previous post, I discussed how to connect Gadgeteer to a Bluetooth module. What I didn’t explain was the header on the Extender Module. It may seem obvious to some but the reason the module in my picture has a header is because I soldered one on…even better I had a friend who is better at soldering do it for me.
You can buy headers from various electronics supply stores. Digikey, Mouser, or allelectronics which I include a link for simply because they have a picture available.
Here is what a header looks like: