Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, a stepper motor with its driver, a distance sensor, a load cell with its interface, and a power supply. The circuit is designed to control the stepper motor and read data from the distance sensor and load cell.

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

Stepper Motor (Bipolar)

• Description: A bipolar stepper motor with four pins.
• Pins: D, B, C, A

VL53L0X

• Description: A time-of-flight distance sensor.
• Pins: vin, gnd, scl, sda

HX711 - Bridge Sensor Interface

• Description: An interface for bridge sensors like load cells.
• Pins: E+, E-, A-, A+, B-, B+, GND - GROUND, DATA (OUT), SCK - CLOCK (IN), 3.3/3.5V Supply

Load Cell - Red/white/black/green

• Description: A load cell sensor with four pins.
• Pins: E+, A-, E-, A+

Electrolytic Capacitor

• Description: A capacitor with a capacitance of 1 µF.
• Pins: -, +
• Properties: Capacitance: 0.000001 Farads

A4988 Stepper Motor Driver Carrier

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

Power Supply

• Description: A power supply unit.
• Pins: +, -

Wiring Details

Arduino UNO

• D4 connected to STEP of A4988 Stepper Motor Driver Carrier
• D5 connected to DIR of A4988 Stepper Motor Driver Carrier
• 5V connected to VCC of A4988 Stepper Motor Driver Carrier
• GND connected to GND of A4988 Stepper Motor Driver Carrier
• GND connected to gnd of VL53L0X
• Vin connected to vin of VL53L0X
• A4 connected to sda of VL53L0X
• A5 connected to scl of VL53L0X
• GND connected to GND - GROUND of HX711 - Bridge Sensor Interface

Stepper Motor (Bipolar)

• B connected to 2B of A4988 Stepper Motor Driver Carrier
• D connected to 2A of A4988 Stepper Motor Driver Carrier
• A connected to 1A of A4988 Stepper Motor Driver Carrier
• C connected to 1B of A4988 Stepper Motor Driver Carrier

VL53L0X

• gnd connected to GND of Arduino UNO
• vin connected to Vin of Arduino UNO
• sda connected to A4 of Arduino UNO
• scl connected to A5 of Arduino UNO

HX711 - Bridge Sensor Interface

• GND - GROUND connected to GND of Arduino UNO
• E+ connected to E+ of Load Cell - Red/white/black/green
• E- connected to E- of Load Cell - Red/white/black/green
• A- connected to A- of Load Cell - Red/white/black/green
• A+ connected to A+ of Load Cell - Red/white/black/green

Load Cell - Red/white/black/green

• E+ connected to E+ of HX711 - Bridge Sensor Interface
• E- connected to E- of HX711 - Bridge Sensor Interface
• A- connected to A- of HX711 - Bridge Sensor Interface
• A+ connected to A+ of HX711 - Bridge Sensor Interface

Electrolytic Capacitor

• - connected to VMOT of A4988 Stepper Motor Driver Carrier and + of Power Supply
• + connected to GND of A4988 Stepper Motor Driver Carrier and - of Power Supply

A4988 Stepper Motor Driver Carrier

• VMOT connected to - of Electrolytic Capacitor and + of Power Supply
• GND connected to + of Electrolytic Capacitor and - of Power Supply
• 2B connected to B of Stepper Motor (Bipolar)
• 2A connected to D of Stepper Motor (Bipolar)
• RESET connected to SLEEP of A4988 Stepper Motor Driver Carrier
• 1A connected to A of Stepper Motor (Bipolar)
• 1B connected to C of Stepper Motor (Bipolar)
• STEP connected to D4 of Arduino UNO
• VCC connected to 5V of Arduino UNO
• DIR connected to D5 of Arduino UNO
• GND connected to GND of Arduino UNO

Power Supply

• + connected to VMOT of A4988 Stepper Motor Driver Carrier and - of Electrolytic Capacitor
• - connected to GND of A4988 Stepper Motor Driver Carrier and + of Electrolytic Capacitor

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Additional Documentation (documentation.txt)