Circuit Documentation

Summary

This circuit consists of an Arduino Nano microcontroller, a Reed Switch, a red LED, a 18650 Li-Ion battery, a Rocker Switch, and a 330 Ohm resistor. The circuit is designed to control the LED based on the state of the Reed Switch, powered by the 18650 Li-Ion battery, and controlled via the Rocker Switch.

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. Reed Switch

   • Description: A magnetic switch that opens or closes a circuit in the presence of a magnetic field.
   • Pins: VCC, GND, DO

3. LED: Two Pin (red)

   • Description: A red light-emitting diode.
   • Pins: cathode, anode

4. 18650 Li-Ion

   • Description: A rechargeable lithium-ion battery.
   • Pins: Positive, Negative

5. Rocker Switch

   • Description: A switch that can be toggled between two positions.
   • Pins: 1, 2

6. Resistor

   • Description: A 330 Ohm resistor used to limit current.
   • Pins: pin1, pin2
   • Properties: Resistance: 330 Ohms

Wiring Details

Arduino Nano

• GND is connected to:

  • Negative pin of the 18650 Li-Ion battery
  • GND pin of the Reed Switch
  • pin1 of the Resistor

• D2 is connected to:

  • DO pin of the Reed Switch

• VIN is connected to:

  • 2 pin of the Rocker Switch

• 5V is connected to:

  • VCC pin of the Reed Switch

• D13/SCK is connected to:

  • anode pin of the LED

Reed Switch

• VCC is connected to:

  • 5V pin of the Arduino Nano

• GND is connected to:

  • GND pin of the Arduino Nano
  • Negative pin of the 18650 Li-Ion battery

• DO is connected to:

  • D2 pin of the Arduino Nano

LED: Two Pin (red)

• anode is connected to:

  • D13/SCK pin of the Arduino Nano

• cathode is connected to:

  • pin2 of the Resistor

18650 Li-Ion

• Positive is connected to:

  • 1 pin of the Rocker Switch

• Negative is connected to:

  • GND pin of the Arduino Nano
  • GND pin of the Reed Switch

Rocker Switch

• 1 is connected to:

  • Positive pin of the 18650 Li-Ion battery

• 2 is connected to:

  • VIN pin of the Arduino Nano

Resistor

• pin1 is connected to:

  • GND pin of the Arduino Nano

• pin2 is connected to:

  • cathode pin of the LED

Code Documentation

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 where you initialize your components and settings, and the loop() function is where the main logic of your program runs repeatedly.