I'm trying to make a row of 21 bi-color leds, in their normal state they will be all red, but when you press a momentary switch the first one would change to blue, press the button again and the next would change to blue, while the rest stay red. Once all 21 leds are blue and press the button again, they will all reset to red.
Any ideas?
Thanks in advance for your help!
Any ideas?
Thanks in advance for your help!