Drag Racing Christmas Tree

thingiverse

I Designed a 3D Printed Drag Racing Christmas Tree in CAD. The Pre-stage and Stage lights are Built to hold 3mm LED's. The rest of the lower lights are all designed to take 5mm LED's. The bottom piece is designed to hold two AAA Batteries. I used an Attiny84 to control the lights and programmed it with an Arduino Uno. Six 3mm screws are needed to assemble the light to the bottom and the two bottom pieces together. Below is a video of the assembled light. https://www.youtube.com/watch?v=fr69CpfyG5o Pictures and Video Arduino Code Arduino code is very simple and basic; it's set up to red light on each side after so many cycles. void setup() { pinMode(0, OUTPUT); pinMode(1, OUTPUT); pinMode(2, OUTPUT); pinMode(3, OUTPUT); pinMode(4, OUTPUT); pinMode(5, OUTPUT); pinMode(6, OUTPUT); pinMode(7, OUTPUT); pinMode(8, OUTPUT); pinMode(9, OUTPUT); pinMode(10, OUTPUT); } void loop() { for (int i=0;i<10){ i++; digitalWrite(0, HIGH); delay(2000); digitalWrite(1, HIGH); delay(2000); digitalWrite(2, HIGH); delay(2000); digitalWrite(3, HIGH); delay(2000); digitalWrite(4, HIGH); delay(500); digitalWrite(5, LOW); delay(500); digitalWrite(6, HIGH); delay(500); digitalWrite(7, LOW); if (i==4){digitalWrite(9, HIGH);} else{digitalWrite(8, HIGH);} delay(100); digitalWrite(0, LOW); digitalWrite(1, LOW); digitalWrite(2, LOW); digitalWrite(3, LOW); delay(4900); } }