Arduino Mega 2560 and DRV8825 Stepper Motor Controller with Bipolar Stepper Motor
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Circuit Documentation
Summary
This document provides a detailed overview of a circuit designed to control a bipolar stepper motor using an Arduino Mega 2560 and a DRV 8825 stepper motor driver. The circuit includes a power supply and an electrolytic capacitor for power stabilization. The Arduino Mega 2560 is programmed to control the stepper motor through the DRV 8825 driver.
Component List
DRV 8825
- Description: Stepper motor driver
- Pins: EN, M0, M1, M2, RST, SLP, STEP, DIR, VMOT, GND MOTOR, B2, B1, A1, A2, FAULT, GND LOGIC
Stepper Motor (Bipolar)
- Description: Bipolar stepper motor
- Pins: D, B, C, A
Power Supply
- Description: Provides power to the circuit
- Pins: +, -
Arduino Mega 2560
- Description: Microcontroller board
- Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, D21/SCL, D20/SDA, D19/RX1, D18/TX1, D17 PWM/RX2, D16 PWM/TX2, D15/RX3, D14/TX3, D0 RX0, D1 TX0, D2 PWM, D3 PWM, D4 PWM, D5 PWM, D6 PWM, D7 PWM, D8 PWM, D9 PWM, D10 PWM, D11 PWM, D12 PWM, D13 PWM, AREF, SDA, SCL, D52, D50, D48, D46, D44, D42, D40, D38, D36, D34, D32, D30, D28, D26, D24, D22, D53, D51, D49, D47, D45, D43, D41, D39, D37, D35, D33, D31, D29, D27, D25, D23, 6swdw
Electrolytic Capacitor
- Description: Capacitor for power stabilization
- Pins: -, +
- Properties:
- Capacitance: 0.0001 Farads
Wiring Details
DRV 8825
- GND MOTOR connected to Electrolytic Capacitor (-) and Power Supply (-)
- VMOT connected to Electrolytic Capacitor (+) and Power Supply (+)
- FAULT connected to Arduino Mega 2560 (5V)
- GND LOGIC connected to Arduino Mega 2560 (GND)
- DIR connected to Arduino Mega 2560 (D6 PWM)
- STEP connected to Arduino Mega 2560 (D8 PWM)
- B2 connected to Stepper Motor (Bipolar) (A)
- B1 connected to Stepper Motor (Bipolar) (C)
- A1 connected to Stepper Motor (Bipolar) (B)
- A2 connected to Stepper Motor (Bipolar) (D)
Stepper Motor (Bipolar)
- A connected to DRV 8825 (B2)
- C connected to DRV 8825 (B1)
- B connected to DRV 8825 (A1)
- D connected to DRV 8825 (A2)
Power Supply
- - connected to Electrolytic Capacitor (-) and DRV 8825 (GND MOTOR)
- + connected to Electrolytic Capacitor (+) and DRV 8825 (VMOT)
Arduino Mega 2560
- 5V connected to DRV 8825 (FAULT)
- GND connected to DRV 8825 (GND LOGIC)
- D6 PWM connected to DRV 8825 (DIR)
- D8 PWM connected to DRV 8825 (STEP)
Electrolytic Capacitor
- - connected to Power Supply (-) and DRV 8825 (GND MOTOR)
- + connected to Power Supply (+) and DRV 8825 (VMOT)
Documented Code
Arduino Mega 2560 Code
File Name: sketch.ino
void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}
File Name: documentation.txt
This document provides a comprehensive overview of the circuit, including the components used, their connections, and the code for the Arduino Mega 2560.