Circuit Documentation

Summary

This document provides a detailed overview of a circuit that integrates various components including an ESP32 microcontroller, MCP2515 CAN controllers, a TB6600 stepper motor driver, a Nema 17 stepper motor, a 7805 voltage regulator, a potentiometer, a limit switch, a diode, a resistor, and a 12V battery. The circuit is designed to control a stepper motor and interface with a CAN bus network.

Component List

1. MCP2515

   • Description: CAN controller
   • Pins: INT, SCK, SI, SO, CS, GND, VCC, H, L

2. ESP32 38 PINS

   • Description: Microcontroller
   • Pins: GND, G23, G22, TXD, RXD, G21, G19, G18, G5, G17, G16, G4, G0, G2, G15, SDI, SD0, CLK, 3V3, EN, SP, SN, G34, G35, G32, 33, G25, G26, G27, G14, G12, G13, SD2, SD3, 5V

3. TB6600 Micro Stepping Motor Driver

   • Description: Stepper motor driver
   • Pins: ENA-, ENA+, DIR-, DIR+, PUL-, PUL+, B-, B+, A-, A+, GND, VCC

4. 7805

   • Description: Voltage regulator
   • Pins: Vin, Gnd, Vout

5. Arduino UNO

   • Description: Microcontroller
   • 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

6. Potentiometer

   • Description: Variable resistor
   • Pins: GND, Output, VCC

7. 12V Battery

   • Description: Power source
   • Pins: VCC, GND

8. Diode

   • Description: Diode
   • Pins: cathode, anode

9. Resistor

   • Description: Resistor
   • Pins: pin1, pin2
   • Properties: Resistance: 10000 Ohms

10. Nema 17 42-STH48

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

11. Limit switch

    • Description: Switch
    • Pins: C, NO, NC

Wiring Details

MCP2515

• INT connected to ESP32 38 PINS G27
• SCK connected to ESP32 38 PINS G18
• SI connected to ESP32 38 PINS G23
• SO connected to ESP32 38 PINS G19
• CS connected to ESP32 38 PINS G5
• GND connected to ESP32 38 PINS GND
• VCC connected to ESP32 38 PINS 3V3 and Resistor pin2
• H connected to MCP2515 H of another MCP2515
• L connected to MCP2515 L of another MCP2515

ESP32 38 PINS

• G21 connected to TB6600 Micro Stepping Motor Driver PUL+
• G34 connected to Limit switch C and Resistor pin1
• G32 connected to TB6600 Micro Stepping Motor Driver ENA+
• 33 connected to TB6600 Micro Stepping Motor Driver DIR+
• GND connected to TB6600 Micro Stepping Motor Driver ENA-, DIR-, PUL-, and Limit switch NO
• 5V connected to 7805 Vout

TB6600 Micro Stepping Motor Driver

• B- connected to Nema 17 42-STH48 B1 Blue
• B+ connected to Nema 17 42-STH48 B2 Red
• A- connected to Nema 17 42-STH48 A1 Green
• A+ connected to Nema 17 42-STH48 A2 (black)
• GND connected to 7805 Gnd and 12V Battery GND
• VCC connected to 7805 Vin and Diode cathode

7805

• Gnd connected to 12V Battery GND and TB6600 Micro Stepping Motor Driver GND
• Vin connected to Diode cathode and TB6600 Micro Stepping Motor Driver VCC
• Vout connected to ESP32 38 PINS 5V

Arduino UNO

• D3 connected to MCP2515 INT
• D13 connected to MCP2515 SCK
• D11 connected to MCP2515 SI
• D12 connected to MCP2515 SO
• D10 connected to MCP2515 CS
• GND connected to Potentiometer VCC and MCP2515 GND
• 5V connected to Potentiometer GND and MCP2515 VCC
• A0 connected to Potentiometer Output

Potentiometer

• VCC connected to Arduino UNO GND and MCP2515 GND
• GND connected to Arduino UNO 5V and MCP2515 VCC
• Output connected to Arduino UNO A0

Diode

• cathode connected to 7805 Vin and TB6600 Micro Stepping Motor Driver VCC
• anode connected to 12V Battery VCC

Resistor

• pin1 connected to ESP32 38 PINS G34 and Limit switch C
• pin2 connected to MCP2515 VCC and ESP32 38 PINS 3V3

Nema 17 42-STH48

• B1 Blue connected to TB6600 Micro Stepping Motor Driver B-
• B2 Red connected to TB6600 Micro Stepping Motor Driver B+
• A1 Green connected to TB6600 Micro Stepping Motor Driver A-
• A2 (black) connected to TB6600 Micro Stepping Motor Driver A+

Limit switch

• C connected to ESP32 38 PINS G34 and Resistor pin1
• NO connected to ESP32 38 PINS GND and TB6600 Micro Stepping Motor Driver ENA-, DIR-, PUL-

Documented Code

Arduino UNO Code

void setup() {
  // put your setup code here, to run once:

}

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

}

This document provides a comprehensive overview of the circuit, including the components used, their connections, and the code for the microcontroller.