Working V8 engine with arduino and stepper motor

thingiverse

I made these upgrades of my project located at https://www.thingiverse.com/thing:1195361, adding some cool features: A box underneath just for fitting the electronics of an Arduino Leonardo and a motor driver, The other pieces are a fan and the cover for the box, simply glued to their relative positions. A couple of flat heads with exhaust just to increase the reality of the engine. The motor is a stepper 5v Chinese with geared box just fitted on the back of the crankshaft. About the electronics, an Arduino Leonardo and a ULM2003 are needed, but every other Arduino model works fine with the appropriate sketch. If you want to replay my project, simply copy and load this sketch to your Arduino: #include <Stepper.h> Stepper myStepper(2048, 8, 10, 9, 11); void setup() { myStepper.setSpeed(14); } void loop() { myStepper.step(-20480); delay(3000); myStepper.step(-512); delay(1000); myStepper.step(-512); delay(1000); myStepper.step(-512); delay(1000); myStepper.step(-512); delay(1000); } With this sketch, the motor runs in a loop: ten turns clockwise, wait three seconds and run four steps every ninety degrees to show the firing order. Simply connect to your USB and enjoy.