Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller, a pushbutton, an A4988 stepper motor driver, a bipolar stepper motor (NEMA 17), and a resistor. The Arduino UNO controls the stepper motor through the A4988 driver, with a pushbutton used to provide input. The resistor is used to limit current in the circuit.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

Pushbutton

• Description: A simple pushbutton switch.
• Pins: Pin 3 (out), Pin 4 (out), Pin 1 (in), Pin 2 (in)

A4988 Stepper Motor Driver Carrier

• Description: A carrier board for the A4988 stepper motor driver.
• Pins: ENABLE, MS1, MS2, MS3, RESET, SLEEP, STEP, DIR, GND, VCC, 1B, 1A, 2A, 2B, VMOT

Bipolar Stepper Motor (NEMA 17)

• Description: A bipolar stepper motor.
• Pins: A-, A+, B+, B-

Resistor

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2
• Properties: Resistance: 200 Ohms

Wiring Details

Arduino UNO

• D11: Connected to MS1 and DIR pins of the A4988 Stepper Motor Driver Carrier, and Pin 4 (out) of the Pushbutton.
• 5V: Connected to MS1 and DIR pins of the A4988 Stepper Motor Driver Carrier, and Pin 4 (out) of the Pushbutton.
• D10: Connected to pin2 of the Resistor.
• GND: Connected to pin2 of the Resistor.

Pushbutton

• Pin 4 (out): Connected to MS1 and DIR pins of the A4988 Stepper Motor Driver Carrier, and D11 and 5V pins of the Arduino UNO.
• Pin 1 (in): Connected to STEP pin of the A4988 Stepper Motor Driver Carrier.
• Pin 2 (in): Connected to pin1 of the Resistor.

A4988 Stepper Motor Driver Carrier

• MS1: Connected to DIR pin of the A4988 Stepper Motor Driver Carrier, and D11 and 5V pins of the Arduino UNO, and Pin 4 (out) of the Pushbutton.
• DIR: Connected to MS1 pin of the A4988 Stepper Motor Driver Carrier, and D11 and 5V pins of the Arduino UNO, and Pin 4 (out) of the Pushbutton.
• STEP: Connected to Pin 1 (in) of the Pushbutton.
• RESET: Connected to SLEEP pin of the A4988 Stepper Motor Driver Carrier.
• SLEEP: Connected to RESET pin of the A4988 Stepper Motor Driver Carrier.
• 1B: Connected to B- pin of the Bipolar Stepper Motor (NEMA 17).
• 1A: Connected to B+ pin of the Bipolar Stepper Motor (NEMA 17).
• 2A: Connected to A+ pin of the Bipolar Stepper Motor (NEMA 17).
• 2B: Connected to A- pin of the Bipolar Stepper Motor (NEMA 17).

Bipolar Stepper Motor (NEMA 17)

• B-: Connected to 1B pin of the A4988 Stepper Motor Driver Carrier.
• B+: Connected to 1A pin of the A4988 Stepper Motor Driver Carrier.
• A+: Connected to 2A pin of the A4988 Stepper Motor Driver Carrier.
• A-: Connected to 2B pin of the A4988 Stepper Motor Driver Carrier.

Resistor

• pin1: Connected to Pin 2 (in) of the Pushbutton.
• pin2: Connected to D10 and GND pins of the Arduino UNO.

Documented Code

Arduino UNO Code

void setup() {
  // put your setup code here, to run once:
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);

  digitalWrite(10, LOW);
  digitalWrite(11, HIGH);
}

void loop() {
  // put your main code here, to run repeatedly:

}

This code sets up pins 10 and 11 of the Arduino UNO as outputs and initializes pin 10 to LOW and pin 11 to HIGH. The loop function is currently empty and can be filled with the main logic to control the stepper motor based on the pushbutton input.