Arduino turn on multiple leds at once The first LEDs will turn on, then the next will turn on and the previous one will turn off. I want to have one blink every second, another to blink every minute, and the last one to blink every hour. Dec 6, 2016 · I want to decorate my house with LEDs strips on each step of my stairs. . I would then like to use a potentiometer to turn on the LEDs one-by-one. The code below flashes 2 LEDs, one connected to pin 2 and one to Pin 3, each with a suitable resistor (220 Ohms or thereabouts) to 0V. I am using a 5641AS 4 Digit 7 Segment display to show the numbers. h> //Soil moisture Dec 10, 2015 · Afternoon, I'm hoping somebody could help with with a project to turn LEDs on and off when you move something (e. // Pin 2/7 has an LED connected on most Arduino boards: pinMode(2, OUTPUT Feb 2, 2012 · To answer your question YES. I originally wrote a program for it that, for every image I displayed (be it a plus, a x, a spiral, whatever) it would turn each LED on and off in a specific order. ehcoqrcqddidzsgvqasrhwzeteqxrlskaxoefkzcfsfiqxlrseykbpnqwojqshqrkrzetftfpdnbahcjjpvrhqy