Power Regulator and Wire connector PCB for NEMA23 Stepper Motor and 80KG 10A Servo with Arduino

This Power Regulator and Wire connector PCB Board based on the Arduino Nano platform. It’s designed for controlling a NEMA23 stepper motor through a TB6600 driver, Uses a XL4016 voltage regualtor steps down the input DC power to 7.4V 10A for a 60-80 KG Servo motor, Uses a LM7805 linear voltage regulator to step down voltage to 5V, powering the Arduino and other low-voltage components.

motor position using a rotary encoder and OLED display, making it suitable for automation, robotics, and CNC projects.

---

Stepper Servo System Schematic Description

This schematic represents a comprehensive wiring diagram for a closed-loop stepper motor control system utilizing an Arduino Nano and an XL4015 step-down power regulator. It is designed for applications requiring precise position feedback via an encoder and robust power delivery to a stepper driver like the TB6600.

Key Functional Sections:

---

1. Power Input (Top Left – DC005-T20):

• Accepts a 9V-35V DC power input through a barrel jack connector.
• Protected by an SS56 Schottky diode and a 100μF decoupling capacitor (C9) to stabilize input voltage and prevent reverse polarity damage.

---

2. Power Regulation (Bottom Left – LM7805S):

• Uses a LM7805 linear voltage regulator to step down voltage to 5V, powering the Arduino and other low-voltage components.
• Includes input/output capacitors (C23, C24) for noise filtering and stabilization.

---

3. Arduino Nano (Top Center):

• Acts as the main controller.
• Interfaces with:
  • Encoder (for position feedback),
  • TB6600 stepper driver (for motor control),
  • OLED display (for user feedback or status display).

---

4. OLED Display Connector (Top Center-Left):

• 4-pin connector for an I²C OLED module.
• Pins: GND, 5V, A5 (SCL), A4 (SDA).

---

5. Encoder Interface (Bottom Center-Left):

• Accepts signal from a 5-channel rotary encoder (HB-PH3-25415PB2G0P).
• Signals pass through optocouplers (D2, D3, D4) for electrical isolation.
• Includes filtering capacitors and pull-up resistors to ensure clean signal transmission.

---

6. Stepper Motor Driver (Top Right – TB6600):

• Controls a NEMA23 stepper motor via a TB6600 module.
• Receives STEP and DIR signals from the Arduino.
• VCC and GND are provided for logic-level interfacing.

---

7. DC-DC Buck Converter (Center – XL4015):

• Converts 24V down to ~7.4V using a high-efficiency XL4016E1 module.
• Includes filtering and energy storage components:
  • Inductor (L1),
  • Schottky diode (D8),
  • Multiple capacitors (C17–C21),
  • Feedback resistors (R10, R11) to set the output voltage.

---

8. NEMA23 Motor Connector (Right Center):

• 4-pin connector for a NEMA23 stepper motor.
• Labeled for correct coil wiring: B-, B+, A-, A+.

---

9. Servo Connector (Bottom Right):

• Additional interface for a servo motor.
• Powered by the 7.4V rail, with signal control from the Arduino (D5).

---

This schematic is part of the Stepper Servo for Arduino project, designed for DIY automation, CNC, or robotic control systems. It emphasizes modularity, proper power distribution, and reliable signal processing for closed-loop motion control.

---

 

Arduino Nano Pins: (total 9 pins in use)

 Rotary Encoder:

CLK: 3

DT: 2

SW: 4

 Stepper Motor:

STEP_PIN: A1

DIR_PIN: A0

ENABLE_PIN: 12

  Servo Motor:

SERVO_PIN: 5

 OLED Display:

SDA: A4

SCL: A5

 

Sample Arduino Code [download]

 

Sample Project Blog link

 

SKU: SSC-A23-PLANTMATE

Version: XL1405_V12_SMD

Made for: DIY automation, CNC, robotics, and precision motion projects.