Circuit Documentation

Summary

This circuit consists of an Arduino Nano microcontroller, an IR sensor, a piezo buzzer, a 12V 5Ah battery, and a step-down converter. The IR sensor detects objects and sends a signal to the Arduino Nano, which then activates the piezo buzzer. The step-down converter is used to convert the 12V from the battery to 5V to power the Arduino Nano and other components.

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. IR Sensor

   • Description: An infrared sensor used to detect objects.
   • Pins: out, gnd, vcc

3. Piezo Buzzer

   • Description: A piezoelectric buzzer used to produce sound.
   • Pins: pin 1, pin 2

4. 12V 5Ah Battery

   • Description: A 12V battery used to power the circuit.
   • Pins: 12v +, 12v -

5. Step-down Converter (18V to 5V)

   • Description: A step-down converter used to convert 12V to 5V.
   • Pins: VIN, GND IN, GND OUT, VOUT

Wiring Details

Arduino Nano

• D5: Connected to IR Sensor (out)
• 5V: Connected to IR Sensor (vcc)
• GND: Connected to IR Sensor (gnd), Piezo Buzzer (pin 2), Step-down Converter (GND OUT)
• VIN: Connected to Step-down Converter (VOUT)
• D4: Connected to Piezo Buzzer (pin 1)

IR Sensor

• out: Connected to Arduino Nano (D5)
• gnd: Connected to Arduino Nano (GND)
• vcc: Connected to Arduino Nano (5V)

Piezo Buzzer

• pin 1: Connected to Arduino Nano (D4)
• pin 2: Connected to Arduino Nano (GND)

12V 5Ah Battery

• 12v +: Connected to Step-down Converter (VIN)
• 12v -: Connected to Step-down Converter (GND IN)

Step-down Converter (18V to 5V)

• VIN: Connected to 12V 5Ah Battery (12v +)
• GND IN: Connected to 12V 5Ah Battery (12v -)
• GND OUT: Connected to Arduino Nano (GND)
• VOUT: Connected to Arduino Nano (VIN)

Documented Code

Arduino Nano Code (sketch.ino)

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

}

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

}

Documentation (documentation.txt)

This documentation provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and the code used in the Arduino Nano.