| Now 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!