| Proudly featured on the cover of the March 2018 issue of Nuts and Volts magazine! |
I created a test schematic to run 12 LEDs, the buzzer and three pushbuttons and monitor the 60Hz frequency. The LEDs and pushbuttons will be interfaced with just four I/O lines of the microcontroller This will allow me to test the concepts that will enable me to make the full circuit consisting of 182 LEDs and four pushbuttons interfaced to 14 I/O lines. For both the test and final circuits, the buzzer and 60Hz will each have a dedicated I/O line. Six I/O lines for the test circuit, and 16 I/O lines for the final clock circuit.