Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano microcontroller, various sensors, switches, LEDs, a motor driver, and other components. The circuit is designed to interface with a DC motor, limit switches, push switches, and a Hall sensor, among other components. The Arduino Nano is programmed to control and monitor these components.

Component List

Arduino Nano

• Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
• Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

L298N DC Motor Driver

• Description: A dual H-Bridge motor driver that allows speed and direction control of two DC motors.
• Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

W5500 Ethernet Module

• Description: A hardwired TCP/IP embedded Ethernet controller that provides easier internet connection to embedded systems.
• Pins: GND, MOSI, SCLK, CS, 3V, MISO

DC Motor

• Description: A simple DC motor with two connection pins.
• Pins: pin 1, pin 2

2.1mm DC Barrel Jack

• Description: A standard DC power jack for connecting external power supplies.
• Pins: switch, sleeve, center

Limit Switch

• Description: A mechanical switch that can be used to detect the presence or absence of an object.
• Pins: C, NO, NC

LED: Two Pin (Red)

• Description: A standard red LED with two pins.
• Pins: cathode, anode

LED: Two Pin (Yellow)

• Description: A standard yellow LED with two pins.
• Pins: cathode, anode

LED: Two Pin (Green)

• Description: A standard green LED with two pins.
• Pins: cathode, anode

Step Down Buck Converter

• Description: A DC-DC converter that steps down voltage from its input to its output.
• Pins: IN +, IN - GND, OUT +, OUT - GND

Hall Sensor

• Description: A sensor that detects the presence of a magnetic field.
• Pins: -, +, S

2Pin Push Switch

• Description: A simple push-button switch with two connection pins.
• Pins: Input +, Output +

Resistor

• Description: A passive electrical component that provides resistance to the flow of current.
• Pins: pin1, pin2
• Properties: Resistance: 1000 Ohms

Wiring Details

Arduino Nano

• D3 connected to Hall Sensor (S)
• D4 connected to Hall Sensor (S)
• D5 connected to L298N DC Motor Driver (ENA)
• D6 connected to Limit Switch (NC)
• D7 connected to Limit Switch (NC)
• D8 connected to 2Pin Push Switch (Output +)
• D9 connected to 2Pin Push Switch (Output +)
• D10 connected to W5500 (CS)
• D11/MOSI connected to W5500 (MOSI)
• D12/MISO connected to W5500 (MISO)
• VIN connected to Hall Sensor (+), Step Down Buck Converter (OUT +), Resistor (pin2)
• GND connected to 2Pin Push Switch (Input +), LED: Two Pin (Green) (cathode), Hall Sensor (-), Step Down Buck Converter (OUT - GND), LED: Two Pin (Yellow) (cathode), W5500 (GND), LED: Two Pin (Red) (cathode)
• A1 connected to Resistor (pin2)
• A0 connected to Resistor (pin2)
• 3V3 connected to W5500 (3V)
• D13/SCK connected to W5500 (SCLK)

L298N DC Motor Driver

• ENA connected to Arduino Nano (D5)
• OUT1 connected to DC Motor (pin 2)
• OUT2 connected to DC Motor (pin 1)
• 12V connected to 2.1mm DC Barrel Jack (center), Step Down Buck Converter (IN +)
• GND connected to 2.1mm DC Barrel Jack (sleeve), Step Down Buck Converter (IN - GND)
• IN1 connected to Limit Switch (C)
• IN2 connected to Limit Switch (C)

W5500 Ethernet Module

• CS connected to Arduino Nano (D10)
• MOSI connected to Arduino Nano (D11/MOSI)
• MISO connected to Arduino Nano (D12/MISO)
• GND connected to Arduino Nano (GND)
• 3V connected to Arduino Nano (3V3)
• SCLK connected to Arduino Nano (D13/SCK)

DC Motor

• pin 1 connected to L298N DC Motor Driver (OUT2)
• pin 2 connected to L298N DC Motor Driver (OUT1)

2.1mm DC Barrel Jack

• center connected to Step Down Buck Converter (IN +), L298N DC Motor Driver (12V)
• sleeve connected to Step Down Buck Converter (IN - GND), L298N DC Motor Driver (GND)

Limit Switch

• NC connected to Arduino Nano (D6)
• NC connected to Arduino Nano (D7)
• C connected to L298N DC Motor Driver (IN1)
• C connected to L298N DC Motor Driver (IN2)

LED: Two Pin (Red)

• cathode connected to Arduino Nano (GND)

LED: Two Pin (Yellow)

• cathode connected to Arduino Nano (GND)

LED: Two Pin (Green)

• cathode connected to Arduino Nano (GND)

Step Down Buck Converter

• IN + connected to 2.1mm DC Barrel Jack (center), L298N DC Motor Driver (12V)
• IN - GND connected to 2.1mm DC Barrel Jack (sleeve), L298N DC Motor Driver (GND)
• OUT + connected to Arduino Nano (VIN), Hall Sensor (+), Resistor (pin2)
• OUT - GND connected to Arduino Nano (GND), 2Pin Push Switch (Input +), LED: Two Pin (Green) (cathode), Hall Sensor (-), 2Pin Push Switch (Input +), LED: Two Pin (Yellow) (cathode), W5500 (GND), LED: Two Pin (Red) (cathode)

Hall Sensor

• S connected to Arduino Nano (D3)
• S connected to Arduino Nano (D4)
• + connected to Arduino Nano (VIN), Step Down Buck Converter (OUT +), Resistor (pin2)
• - connected to Arduino Nano (GND), Step Down Buck Converter (OUT - GND)

2Pin Push Switch

• Output + connected to Arduino Nano (D8)
• Output + connected to Arduino Nano (D9)
• Input + connected to Arduino Nano (GND), LED: Two Pin (Green) (cathode), Hall Sensor (-), Step Down Buck Converter (OUT - GND), LED: Two Pin (Yellow) (cathode), W5500 (GND), LED: Two Pin (Red) (cathode)

Resistor

• pin2 connected to Arduino Nano (VIN), Hall Sensor (+), Step Down Buck Converter (OUT +)
• pin2 connected to Arduino Nano (A1)