Advanced (Arduino controlled) Zoetrope

thingiverse

A previous prototype: http://www.thingiverse.com/thing:2165742 Testing: https://youtu.be/NRLJCD5zStw https://www.youtube.com/watch?v=y_Atr-iFn8I In this device, a control system based on an Arduino board governs the operation of a stepper motor and two lights connected in series. The Arduino program is built around a NanoV3, but by modifying the port numbers, any other board can be used. The flash port is linked to the base of a high-power N-FET. High-intensity 1-watt LEDs are ideal, as they produce short flashes that create a sharp and clear image. Adjust the resistor values accordingly. A holder for 1-watt LEDs is included in the design. If you notice horses moving in reverse, simply swap the leads of one coil on the stepper motor. Some examples can be found online: https://duckduckgo.com/?q=zoetrope+examples&t=ffsb&iax=1&ia=images http://thevinylfactory.com/features/the-10-most-mind-bending-vinyl-zoetropes/ The program relies on the step angle. Every 36 degrees of rotation, the LEDs should flash. //Stepper int SA1 = 3; int SA2 = 2; int SB1 = 1;int SB2 = 0; int F = 4;// flash int s = 3;//delay between steps int x = 0; void setup() { pinMode(SA1, OUTPUT); pinMode(SA2, OUTPUT); pinMode(SB1, OUTPUT);pinMode(SB2, OUTPUT); pinMode(F, OUTPUT); } void loop(){ for(x=0;x<360;x++){ digitalWrite(SA1, HIGH); delayMicroseconds(s); digitalWrite(SA1, LOW); digitalWrite(SB1, HIGH); delayMicroseconds(s); digitalWrite(SB1, LOW); if (x % 36 == 0){ digitalWrite(F, HIGH); delay(50); // duration of flash in milliseconds digitalWrite(F, LOW); // turn off the led } }