Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano microcontroller, various resistors, an RGB LED, a 16x2 I2C LCD, a VS1838B IR Receiver, a DC Mini Metal Gear Motor, a Polymer Lithium Ion Battery, and other components. The circuit is designed to interface with these components to perform various functions as defined by the embedded code.

Component List

1. 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

2. RGB LED (Wokwi compatible)

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

3. MT3608

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

4. LM2596

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

5. nMOS Transistor (MOSFET)

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

6. Resistor (220 Ohms)

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

7. Resistor (1000 Ohms)

   • Description: A resistor with a resistance of 1000 Ohms.
   • Pins: pin1, pin2

8. Resistor (10000 Ohms)

   • Description: A resistor with a resistance of 10000 Ohms.
   • Pins: pin1, pin2

9. VS1838B IR Receiver

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

10. 16x2 I2C LCD

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

11. TP4056

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

12. DC Mini Metal Gear Motor

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

13. Polymer Lithium Ion Battery - Generic

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

14. Pushbutton

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

15. Rocker Switch (SPST)

    • Description: A single-pole single-throw rocker switch.
    • Pins: 1, 2

16. Diode

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

Wiring Details

Arduino Nano

• D13/SCK connected to nMOS Transistor (MOSFET) gate
• D12/MISO connected to Resistor (1000 Ohms) pin1
• D11/MOSI connected to Resistor (1000 Ohms) pin1
• D8 connected to Pushbutton Pin 1
• D7 connected to Resistor (220 Ohms) pin2
• D6 connected to Resistor (220 Ohms) pin2
• A4 connected to 16x2 I2C LCD SDA
• D5 connected to Resistor (220 Ohms) pin2
• A5 connected to 16x2 I2C LCD SCL
• D4 connected to Resistor (10000 Ohms) pin2
• GND connected to 16x2 I2C LCD GND, MT3608 VOUT-, VS1838B IR Receiver GND, nMOS Transistor (MOSFET) source, MT3608 VIN-, nMOS Transistor (MOSFET) source, nMOS Transistor (MOSFET) source, LM2596 IN, Pushbutton Pin 3, TP4056 OUT-, LM2596 OUT
• VIN connected to VS1838B IR Receiver VCC, RGB LED (Wokwi compatible) COM, 16x2 I2C LCD VCC, MT3608 VOUT+

RGB LED (Wokwi compatible)

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

MT3608

• VOUT+ connected to Arduino Nano VIN
• VIN+ connected to Diode cathode, Solenoid pin2, Diode cathode, Solenoid pin2, Rocker Switch (SPST) 2, LM2596 IN, MT3608 VIN+

LM2596

• IN connected to MT3608 VIN+
• OUT connected to DC Mini Metal Gear Motor IN1

nMOS Transistor (MOSFET)

• gate connected to Arduino Nano D13/SCK, Resistor (1000 Ohms) pin2
• drain connected to DC Mini Metal Gear Motor IN2, Diode anode, Solenoid pin1

Resistor (220 Ohms)

• pin1 connected to RGB LED (Wokwi compatible) R, RGB LED (Wokwi compatible) G, RGB LED (Wokwi compatible) B
• pin2 connected to Arduino Nano D7, Arduino Nano D6, Arduino Nano D5

Resistor (1000 Ohms)

• pin1 connected to Arduino Nano D12/MISO, Arduino Nano D11/MOSI
• pin2 connected to nMOS Transistor (MOSFET) gate

Resistor (10000 Ohms)

• pin1 connected to VS1838B IR Receiver OUT
• pin2 connected to Arduino Nano D4

VS1838B IR Receiver

• OUT connected to Resistor (10000 Ohms) pin1
• GND connected to Arduino Nano GND
• VCC connected to Arduino Nano VIN

16x2 I2C LCD

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

TP4056

• OUT- connected to Arduino Nano GND
• OUT+ connected to Rocker Switch (SPST) 1
• B- connected to Polymer Lithium Ion Battery - Generic GND
• B+ connected to Polymer Lithium Ion Battery - Generic VCC

DC Mini Metal Gear Motor

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

Polymer Lithium Ion Battery - Generic

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

Pushbutton

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

Rocker Switch (SPST)

• 1 connected to TP4056 OUT+
• 2 connected to MT3608 VIN+

Diode

• cathode connected to MT3608 VIN+
• anode connected to nMOS Transistor (MOSFET) drain, Solenoid pin1

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 code is a basic template for the Arduino Nano. The setup() function is called once when the program starts and is used to initialize any variables, pin modes, start using