Step 4. Fit the Headers

You can make it easier to fit the header plugs into the IOIO and the sockets into the LED Matrix by fitting the components into the headers before putting them in the right position on the board. Double-check that the placement is correct, as it will be hard to unsolder them once they are in position.

If the header strips are not the right lengths, you will need to cut them to the right number of connections using a craft knife. When cutting the sockets, this will usually mean sacrificing one of the socket connections, so cut through the socket after the number you need, rather than try and cut between sockets.

Once the sockets are in place, your board should look like Figure 4-7.