I have an arduino R4 Wifi to which a Modulino knob is connected.
This knob is used to set a value to be used later. The value must be displayed on the built-in led matrix of the arduino board. As a trigger, I want to use a simple arcade push-button. Every time the button is pressed, this counts as a trigger. The trigger should cause a number of LEDs on a WS2813 LED strip of 144 LEDs to change from red to green.
The LED strip must initially be completely red and per trigger a certain number of LEDs must turn green. The number of LEDs turning green must be determined by the modulino knob.
It should be possible to set a value between 1 and 50 with the knob. This determines the maximum number of triggers needed to completely change the LED strip from red to green. If the value 1 is set, pressing the button once should cause all the LEDs to turn green. If the value 2 is set, pressing the buttons twice makes the entire LED strip to turn green. If the value 20 is set, it takes 20 presses on the button to have the LED strip turn completely green.
The value is set using the modulino know and must be displayed on the built-in led matrix of the arduino board. This is done once before the program becomes active. Turning to the right moves the value up and turning to the left moves the value up. The value is confirmed by pressing modulino button. Once this is done, you can give triggers through the modulino buttons via the A button.
The aim of this project is to make an led-strip switch from red to green by letting wooden balls run down a kind of marble track to switch the red lights to green. Depending on the numbers of wooden balls available to run down the track, there should be more or less leds switch from red to green. I'm thinking of using a push-button as a trigger every time a ball rolls over the button but if there are more useful suggestions, that's also fine.