Circuit Documentation

Summary

This circuit involves an Arduino Nano microcontroller, two Tower Pro SG90 servos, an RGB color sensor, a 2-pin push switch, a 7805 voltage regulator, a 18650 Li-Ion battery, and a rocker switch. The Arduino Nano controls the servos and the RGB color sensor, while the power is managed by the 7805 voltage regulator and the 18650 Li-Ion battery.

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

Tower Pro SG90 Servo (x2)

• Description: A micro servo motor commonly used in robotics.
• Pins: Signal, +5V, GND

RGB Colour Sensor

• Description: A sensor that detects the color of an object.
• Pins: S0, S1, S2, S3, OUT, Vcc, GND, OE, LED

2-Pin Push Switch

• Description: A simple push-button switch.
• Pins: Input +, Output +

7805 Voltage Regulator

• Description: A voltage regulator that outputs a stable 5V.
• Pins: Vin, Gnd, Vout

18650 Li-Ion Battery

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

Rocker Switch

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

Wiring Details

Arduino Nano

• D9: Connected to Signal pin of Tower Pro SG90 servo
• D10: Connected to Signal pin of Tower Pro SG90 servo
• D4: Connected to S0 pin of RGB Colour Sensor
• D5: Connected to S1 pin of RGB Colour Sensor
• D6: Connected to S2 pin of RGB Colour Sensor
• D7: Connected to S3 pin of RGB Colour Sensor
• D8: Connected to OUT pin of RGB Colour Sensor
• D12/MISO: Connected to Output + pin of 2-Pin Push Switch
• VIN: Connected to pin 2 of Rocker Switch and Vin pin of 7805 Voltage Regulator
• GND: Connected to GND pin of Tower Pro SG90 servo, GND pin of RGB Colour Sensor, Negative pin of 18650 Li-Ion Battery, and Gnd pin of 7805 Voltage Regulator
• 5V: Connected to Vcc pin of RGB Colour Sensor and Input + pin of 2-Pin Push Switch

Tower Pro SG90 Servo (1)

• Signal: Connected to D9 pin of Arduino Nano
• +5V: Connected to Vout pin of 7805 Voltage Regulator
• GND: Connected to GND pin of Arduino Nano

Tower Pro SG90 Servo (2)

• Signal: Connected to D10 pin of Arduino Nano
• +5V: Connected to Vout pin of 7805 Voltage Regulator
• GND: Connected to GND pin of Arduino Nano

RGB Colour Sensor

• S0: Connected to D4 pin of Arduino Nano
• S1: Connected to D5 pin of Arduino Nano
• S2: Connected to D6 pin of Arduino Nano
• S3: Connected to D7 pin of Arduino Nano
• OUT: Connected to D8 pin of Arduino Nano
• Vcc: Connected to 5V pin of Arduino Nano
• GND: Connected to GND pin of Arduino Nano

2-Pin Push Switch

• Input +: Connected to 5V pin of Arduino Nano
• Output +: Connected to D12/MISO pin of Arduino Nano

7805 Voltage Regulator

• Vin: Connected to VIN pin of Arduino Nano and pin 2 of Rocker Switch
• Gnd: Connected to GND pin of Arduino Nano and Negative pin of 18650 Li-Ion Battery
• Vout: Connected to +5V pin of Tower Pro SG90 servos

18650 Li-Ion Battery

• Positive: Connected to pin 1 of Rocker Switch
• Negative: Connected to GND pin of Arduino Nano and Gnd pin of 7805 Voltage Regulator

Rocker Switch

• 1: Connected to Positive pin of 18650 Li-Ion Battery
• 2: Connected to VIN pin of Arduino Nano and Vin pin of 7805 Voltage Regulator

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