If you want to use a bi-polar transistor, don’t forget to add a resistor (~1KΩ ) between Arduino D10 and the base terminal of the transistor. Tags Electroschematics. T.K. Hareendran. About T.K.

arduino and tinkecad on LED and pnp transistor connect the (+) to pin (13) and connect the ground to (-) then start with capacitor (0.33mF) on (E) port and connect the out to the secend capacitor (0.1 ...

The Arduino then controls the state of the LED using the active high enable line from the column multiplexer chip. [Alex] wanted more than just a static image to show off on his new display, so he ...