Hello All,
I am trying to get my Arduino to control a stepper motor. I've wired the Arduino to a TMC2208 then to a NEMA 11. The motor is moving how the code says it should but it is very slow and sometimes doesn't work. I am using a 5v 2.1A USB battery pack to power everything through the Arduino. I am unsure if I wired something wrong or if it needs more power. I have attached a photo and will put the code I am currently running below.
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Stepper Motor Demonstration 4
Stepper-Demo4.ino
Demonstrates NEMA 17 Bipolar Stepper with A4988 DriverDroneBot Workshop 2018
https://dronebotworkshop.com
*/
// Define Constants
// Connections to A4988
const int dirPin = 2; // Direction
const int stepPin = 3; // Step
// Motor steps per rotation
const int STEPS_PER_REV = 200;
void setup() {
// Setup the pins as Outputs
pinMode(stepPin,OUTPUT);
pinMode(dirPin,OUTPUT);
}
void loop() {
// Set motor direction clockwise
digitalWrite(dirPin,HIGH);
// Spin motor one rotation slowly
for(int x = 0; x < STEPS_PER_REV; x++) {
digitalWrite(stepPin,HIGH);
delayMicroseconds(2000);
digitalWrite(stepPin,LOW);
delayMicroseconds(2000);
}
// Pause for one second
delay(1000);
// Set motor direction counterclockwise
digitalWrite(dirPin,LOW);
// Spin motor two rotations quickly
for(int x = 0; x < (STEPS_PER_REV * 2); x++) {
digitalWrite(stepPin,HIGH);
delayMicroseconds(1000);
digitalWrite(stepPin,LOW);
delayMicroseconds(1000);
}
// Pause for one second
delay(1000);
}
