Bike Light

thingiverse

It's a holder for LEDs. Instructions Arduino code: int led=12; int led2=11; int led1=10; int led3=9; int led4=8; int btn=2; int val; // variable for reading the pin status int btnState; int ledVal=0;// variable to hold the last button state int lightOn=0; int long ltc=0; int long interval=500; void setup(){ pinMode(led, OUTPUT); pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); pinMode(led4, OUTPUT); pinMode (btn, INPUT); btnState = digitalRead(btn); // read the initial state Serial.begin(9600); } void loop(){ val = digitalRead( btn); // read input value and store it in val if (val != btnState) { // the button state has changed! if (val == HIGH) { // check if the button is pressed if(lightOn