User Manual

So! From the prior page, refer to the socket that’s

correct for your matrix type. The labels may be a little

different (or none at all), but most are pretty close to

what’s shown here.

Then

swap the columns

to find the correct position for a

given signal.

Either end of the ribbon cable can be plugged into the matrix INPUT socket. Notice below, the “key” faces the same

way regardless.

With the free end of the ribbon toward the center of the matrix, the Arduino can be hidden behind it.

With the free end of the ribbon off the side, it’s easier to see both the front of the matrix and the Arduino

simultaneously, for making additional connections or for troubleshooting.