How do you turn an LED on and off with a button on Arduino? We set the pinButton variable as integer 8 and we connect the button at pin 8 on the Board. Then the LED is connected to pin 2 using the ...

One more suggestion: if we use an Arduino PWM pin as the common anode pin, we can power on/off the display and change its brightness. What if using Common Cathode Display. If we put in the sockets ...

Every segment came out to a single pin, it could be jumpered to 3 others (L/R, and either up or down, depending, it was only 2 rows of pins). You got always on, on for turbo, or on for slow.

On an Arduino if you’ve got an 8 x 16 grid, I’d use a 74xx138 for the columns (x) and a 74xx154 (y) for the rows, that’s 7 bits, 3 for the columns (x), 4 for the rows (y) Just one more ...