Posted on

Tested the LED matrix

MARCH MADNESS!

Save 10%! Get 10% off your order for a limited time only! Use coupon code MarchMad10.

Proudly featured on the cover of the March 2018 issue of Nuts and Volts magazine!

At this point, I’m able to operate the LEDs of the test circuit by manually applying +5V and ground to the four lines that will be connected to the I/O ports on the microcontroller. I can light any one of the 12 LEDs without having any of the other LEDs light up. This is pretty cool, the technique works!