//©2011 bildr //Released under the MIT License - Please reuse change and share //Using the easy stepper with your arduino //use rotate and/or rotateDeg to controll stepper motor //speed is any number from .01 -> 1 with 1 being fastest - //Slower Speed == Stronger movement /////////////////////////////////////////////////////////////// #define DIR_PIN 2 #define STEP_PIN 3 void setup() { pinMode(DIR_PIN, OUTPUT); pinMode(STEP_PIN, OUTPUT); } void loop(){ //rotate a specific number of degrees rotateDeg(360, .3); delay(1000); rotateDeg(-360, .3); //reverse delay(1000); //rotate a specific number of microsteps (8 microsteps per step) //a 200 step stepper would take 1600 micro steps for one full revolution rotate(1600, .5); delay(1000); rotate(-1600, .5); //reverse delay(1000); } void rotate(int steps, float speed){ //rotate a specific number of microsteps (8 microsteps per step) - (negitive for reverse movement) //speed is any number from .01 -> 1 with 1 being fastest - Slower is stronger int dir = (steps > 0)? HIGH:LOW; steps = abs(steps); digitalWrite(DIR_PIN,dir); float usDelay = (1/speed) * 70; for(int i=0; i < steps; i++){ digitalWrite(STEP_PIN, HIGH); delayMicroseconds(usDelay); digitalWrite(STEP_PIN, LOW); delayMicroseconds(usDelay); } } void rotateDeg(float deg, float speed){ //rotate a specific number of degrees (negitive for reverse movement) //speed is any number from .01 -> 1 with 1 being fastest - Slower is stronger int dir = (deg > 0)? HIGH:LOW; digitalWrite(DIR_PIN,dir); int steps = abs(deg)*(1/0.225); float usDelay = (1/speed) * 70; for(int i=0; i < steps; i++){ digitalWrite(STEP_PIN, HIGH); delayMicroseconds(usDelay); digitalWrite(STEP_PIN, LOW); delayMicroseconds(usDelay); } }