Circuit Documentation

Summary

This document provides a detailed overview of a circuit design that includes an Arduino Nano microcontroller, various sensors, actuators, and other components. The circuit is designed to perform specific tasks as defined by the embedded code running on the Arduino Nano. The document includes a component list, wiring details, and the embedded code.

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

RGB LED (Wokwi compatible)

• Description: A common anode RGB LED.
• Pins: R, COM, G, B

MT3608

• Description: A DC-DC step-up converter.
• Pins: VOUT+, VIN+, VOUT-, VIN-

LM2596

• Description: A DC-DC step-down converter.
• Pins: IN, OUT

nMOS Transistor (MOSFET)

• Description: A type of transistor used for switching and amplifying electronic signals.
• Pins: gate, drain, source

Resistor (220 Ohms)

• Description: A resistor with a resistance of 220 Ohms.
• Pins: pin1, pin2

Resistor (10k Ohms)

• Description: A resistor with a resistance of 10k Ohms.
• Pins: pin1, pin2

Resistor (1k Ohms)

• Description: A resistor with a resistance of 1k Ohms.
• Pins: pin1, pin2

VS1838B IR Receiver

• Description: An infrared receiver module.
• Pins: OUT, GND, VCC

Diode

• Description: A semiconductor device that allows current to flow in one direction only.
• Pins: cathode, anode

Solenoid

• Description: An electromechanical device that converts electrical energy into linear motion.
• Pins: pin1, pin2

16x2 I2C LCD

• Description: A 16x2 character LCD with I2C interface.
• Pins: GND, VCC, SDA, SCL

TP4056

• Description: A lithium battery charger module.
• Pins: OUT-, B-, B+, OUT+, IN-, IN+

DC Mini Metal Gear Motor

• Description: A small DC motor with metal gears.
• Pins: IN1, IN2

Polymer Lithium Ion Battery - Generic

• Description: A generic lithium-ion battery.
• Pins: GND, VCC

Rocker Switch

• Description: A switch that rocks back and forth to open or close a circuit.
• Pins: 1, 2

Pushbutton

• Description: A simple pushbutton switch.
• Pins: Pin 2, Pin 1, Pin 3, Pin 4

Wiring Details

Arduino Nano

• D13/SCK connected to gate of nMOS Transistor (MOSFET)
• D12/MISO connected to pin1 of Resistor (1k Ohms)
• D11/MOSI connected to pin1 of Resistor (1k Ohms)
• D8 connected to Pin 1 of Pushbutton
• D7 connected to pin2 of Resistor (220 Ohms)
• D6 connected to pin2 of Resistor (220 Ohms)
• A4 connected to SDA of 16x2 I2C LCD
• D5 connected to pin2 of Resistor (220 Ohms)
• A5 connected to SCL of 16x2 I2C LCD
• D4 connected to pin2 of Resistor (10k Ohms)
• GND connected to GND of 16x2 I2C LCD, VOUT- of MT3608, GND of VS1838B IR Receiver, source of nMOS Transistor (MOSFET), OUT of LM2596, source of nMOS Transistor (MOSFET), source of nMOS Transistor (MOSFET), VIN- of MT3608, IN of LM2596, Pin 3 of Pushbutton, OUT- of TP4056
• VIN connected to VCC of VS1838B IR Receiver, COM of RGB LED (Wokwi compatible), VCC of 16x2 I2C LCD, VOUT+ of MT3608

RGB LED (Wokwi compatible)

• R connected to pin1 of Resistor (220 Ohms)
• G connected to pin1 of Resistor (220 Ohms)
• B connected to pin1 of Resistor (220 Ohms)

MT3608

• VIN+ connected to IN of LM2596
• VOUT+ connected to VIN of Arduino Nano

LM2596

• OUT connected to IN1 of DC Mini Metal Gear Motor

nMOS Transistor (MOSFET)

• drain connected to IN2 of DC Mini Metal Gear Motor

Resistor (220 Ohms)

• pin1 connected to R of RGB LED (Wokwi compatible)
• pin1 connected to G of RGB LED (Wokwi compatible)
• pin1 connected to B of RGB LED (Wokwi compatible)

Resistor (10k Ohms)

• pin1 connected to OUT of VS1838B IR Receiver

Resistor (1k Ohms)

• pin1 connected to D12/MISO of Arduino Nano
• pin1 connected to D11/MOSI of Arduino Nano

VS1838B IR Receiver

• OUT connected to pin1 of Resistor (10k Ohms)

Diode

• cathode connected to pin2 of Solenoid
• anode connected to drain of nMOS Transistor (MOSFET)

Solenoid

• pin1 connected to anode of Diode
• pin2 connected to cathode of Diode

16x2 I2C LCD

• GND connected to GND of Arduino Nano
• VCC connected to VIN of Arduino Nano
• SDA connected to A4 of Arduino Nano
• SCL connected to A5 of Arduino Nano

TP4056

• OUT+ connected to 2 of Rocker Switch
• B- connected to GND of Polymer Lithium Ion Battery - Generic
• B+ connected to VCC of Polymer Lithium Ion Battery - Generic

DC Mini Metal Gear Motor

• IN1 connected to OUT of LM2596
• IN2 connected to drain of nMOS Transistor (MOSFET)

Polymer Lithium Ion Battery - Generic

• GND connected to B- of TP4056
• VCC connected to B+ of TP4056

Rocker Switch

• 1 connected to cathode of Diode
• 2 connected to OUT+ of TP4056

Pushbutton

• Pin 1 connected to D8 of Arduino Nano
• Pin 3 connected to GND of Arduino Nano

Documented Code

Arduino Nano Code

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

}

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

}

This concludes the documentation for the circuit. Each component and its connections have been detailed, along with the embedded code for the Arduino Nano.