Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a Raspberry Pi 4B, DRV8825 motor drivers, AS5600 magnetic encoders, power supplies, an AC source, an electrolytic capacitor, and a Nema 17 stepper motor. The circuit is designed to control a stepper motor using the Raspberry Pi, with feedback from the magnetic encoders. The power supplies provide the necessary voltages for the components.

Component List

1. DRV8825 Motor Driver

   • Description: Motor driver for controlling stepper motors.
   • Pins: ENABLE, MS1, MS2, MS3, RESET, SLEEP, STEP, DIR, GND, FAULT, 1B, 1A, 2A, 2B, VMOT

2. AS5600 Magnetic Encoder

   • Description: Magnetic encoder for position feedback.
   • Pins: DIR, SCL, SDA, GP0, VCC, OUT, GND

3. POWER SUPPLY 12V 5AMP

   • Description: Power supply providing 12V DC at 5A.
   • Pins: 220V Positive Pole (AC), 220V Negative Pole (AC), GND, GND (DC), 12V-24V Output (DC)

4. POWER SUPPLY 5V 5AMP

   • Description: Power supply providing 5V DC at 5A.
   • Pins: 220V Positive Pole (AC), 220V Negative Pole (AC), GND, GND (DC), 12V-24V Output (DC)

5. Raspberry Pi 4B

   • Description: Single-board computer for controlling the circuit.
   • Pins: 3V3, 5V, GPIO2, GPIO3, GND, GPIO4, GPIO14, GPIO15, GPIO17, GPIO18, GPIO27, GPIO22, GPIO23, GPIO24, GPIO10, GPIO9, GPIO25, GPIO11, GPIO8, GPIO7, ID_SD, GPIO5, GPIO6, GPIO12, GPIO13, GPIO19, GPIO16, GPIO26, GPIO20, GPIO21, ID_SC, TR01_TAP, TR00_TAP, TR03_TAP, TR02_TAP, RUN, GLOBAL_EN

6. AC Source

   • Description: AC power source.
   • Pins: +, -

7. Nema 17 42-STH48

   • Description: Stepper motor.
   • Pins: A2 (black), A1 Green, B2 Red, B1 Blue

8. Electrolytic Capacitor

   • Description: Capacitor for filtering.
   • Pins: -, +
   • Properties: Capacitance: 0.0001 Farads

Wiring Details

DRV8825 Motor Driver

• RESET connected to SLEEP and 5V of Raspberry Pi 4B
• STEP connected to GPIO17 of Raspberry Pi 4B
• DIR connected to GPIO27 of Raspberry Pi 4B
• GND connected to - of Electrolytic Capacitor, GND (DC) of POWER SUPPLY 12V 5AMP, and GND of Raspberry Pi 4B
• ENABLE connected to GPIO19 of Raspberry Pi 4B
• VMOT connected to + of Electrolytic Capacitor and 12V-24V Output (DC) of POWER SUPPLY 12V 5AMP
• 1B connected to A2 (black) of Nema 17 42-STH48
• 1A connected to A1 Green of Nema 17 42-STH48
• 2A connected to B1 Blue of Nema 17 42-STH48
• 2B connected to B2 Red of Nema 17 42-STH48

AS5600 Magnetic Encoder

• VCC connected to 5V of Raspberry Pi 4B
• SDA connected to GPIO2 of Raspberry Pi 4B
• SCL connected to GPIO3 of Raspberry Pi 4B
• GND connected to GND (DC) of POWER SUPPLY 5V 5AMP

POWER SUPPLY 12V 5AMP

• 220V Positive Pole (AC) connected to + of AC source
• 220V Negative Pole (AC) connected to - of AC source
• GND (DC) connected to GND of DRV8825, - of Electrolytic Capacitor, and GND of Raspberry Pi 4B
• 12V-24V Output (DC) connected to VMOT of DRV8825 and + of Electrolytic Capacitor

POWER SUPPLY 5V 5AMP

• 220V Positive Pole (AC) connected to + of AC source
• 220V Negative Pole (AC) connected to - of AC source
• GND (DC) connected to GND of AS5600 magnetic encoder
• 12V-24V Output (DC) connected to Raspberry Pi 4B

Raspberry Pi 4B

• 5V connected to RESET and SLEEP of DRV8825, and VCC of AS5600 magnetic encoder
• GPIO2 connected to SDA of AS5600 magnetic encoder
• GPIO3 connected to SCL of AS5600 magnetic encoder
• GPIO17 connected to STEP of DRV8825
• GPIO27 connected to DIR of DRV8825
• GPIO19 connected to ENABLE of DRV8825
• GND connected to GND of DRV8825, - of Electrolytic Capacitor, and GND (DC) of POWER SUPPLY 12V 5AMP

AC Source

• + connected to 220V Positive Pole (AC) of POWER SUPPLY 12V 5AMP and POWER SUPPLY 5V 5AMP
• - connected to 220V Negative Pole (AC) of POWER SUPPLY 12V 5AMP and POWER SUPPLY 5V 5AMP

Nema 17 42-STH48

• A2 (black) connected to 1B of DRV8825
• A1 Green connected to 1A of DRV8825
• B1 Blue connected to 2A of DRV8825
• B2 Red connected to 2B of DRV8825

Electrolytic Capacitor

• - connected to GND of DRV8825, GND (DC) of POWER SUPPLY 12V 5AMP, and GND of Raspberry Pi 4B
• + connected to VMOT of DRV8825 and 12V-24V Output (DC) of POWER SUPPLY 12V 5AMP

Code

No code is provided for this circuit.

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This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and code section. Each component is described, and the wiring details are provided to ensure proper connections.