Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Nano microcontroller, various sensors (IR and Ultrasonic), a WS2812 RGB LED strip, a buzzer, a potentiometer, a motor driver, and a 12V battery. The circuit is designed to interface these components with the Arduino Nano to perform various sensing and actuation tasks.

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

Ultrasonic Sensor

• Description: A sensor used to measure distance by using ultrasonic waves.
• Pins: +VCC, Trigger, Echo, GND

IR Sensor

• Description: An infrared sensor used for detecting objects.
• Pins: out, gnd, vcc

Buzzer

• Description: An audio signaling device.
• Pins: PIN, GND

NPN Transistor (CBE)

• Description: A transistor used for switching and amplification.
• Pins: collector, base, emitter

Resistor

• Description: A passive electrical component with a resistance of 1000 Ohms.
• Pins: pin1, pin2

WS2812 RGB LED Strip

• Description: An addressable RGB LED strip.
• Pins: DIN, 5V, GND, DO

TSR-3386UT Square Trimming Potentiometer

• Description: A variable resistor used to adjust resistance.
• Pins: Leg1, wiper, Leg2

12V 7Ah Battery

• Description: A rechargeable battery providing 12V.
• Pins: 12v +, 12v -

TB6612FNG Motor Driver

• Description: A motor driver used to control motors.
• Pins: GND, B01, B02, A02, A01, VCC, VM, PWMB, BI2, BI1, STBY, AI1, AI2, PWMA

Wiring Details

Arduino Nano

• GND: Connected to GND of IR sensors, WS2812 RGB LED strip, Ultrasonic Sensor, Potentiometer, and the collector of the NPN Transistor.
• D2: Connected to the out pin of the first IR sensor.
• D3: Connected to the out pin of the second IR sensor.
• D4: Connected to the Trigger pin of the Ultrasonic Sensor.
• D5: Connected to the Echo pin of the Ultrasonic Sensor.
• D6: Connected to the DIN pin of the WS2812 RGB LED strip.
• D9: Connected to pin1 of the Resistor.
• VIN: Connected to 12v + of the 12V 7Ah Battery.
• 5V: Connected to vcc of IR sensors, WS2812 RGB LED strip, Ultrasonic Sensor, PIN of the Buzzer, and Leg2 of the Potentiometer.
• A6: Connected to the wiper of the Potentiometer.

Ultrasonic Sensor

• GND: Connected to GND of the Arduino Nano.
• Trigger: Connected to D4 of the Arduino Nano.
• Echo: Connected to D5 of the Arduino Nano.
• +VCC: Connected to 5V of the Arduino Nano.

IR Sensor (First)

• gnd: Connected to GND of the Arduino Nano.
• out: Connected to D2 of the Arduino Nano.
• vcc: Connected to 5V of the Arduino Nano.

IR Sensor (Second)

• gnd: Connected to GND of the Arduino Nano.
• out: Connected to D3 of the Arduino Nano.
• vcc: Connected to 5V of the Arduino Nano.

Buzzer

• PIN: Connected to 5V of the Arduino Nano.
• GND: Connected to the emitter of the NPN Transistor.

NPN Transistor (CBE)

• collector: Connected to GND of the Arduino Nano.
• base: Connected to pin2 of the Resistor.
• emitter: Connected to GND of the Buzzer.

Resistor

• pin1: Connected to D9 of the Arduino Nano.
• pin2: Connected to the base of the NPN Transistor.

WS2812 RGB LED Strip

• DIN: Connected to D6 of the Arduino Nano.
• 5V: Connected to 5V of the Arduino Nano.
• GND: Connected to GND of the Arduino Nano.

TSR-3386UT Square Trimming Potentiometer

• Leg1: Connected to GND of the Arduino Nano.
• wiper: Connected to A6 of the Arduino Nano.
• Leg2: Connected to 5V of the Arduino Nano.

12V 7Ah Battery

• 12v +: Connected to VIN of the Arduino Nano.
• 12v -: Connected to GND of the Arduino Nano.

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:

}

Additional Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including the components used, their connections, and the code running on the Arduino Nano.