Circuit Documentation

Summary

This circuit consists of an Arduino UNO microcontroller, an HC-SR04 Ultrasonic Sensor, a Micro servo 9G, an AC Supply, a Bridge Rectifier, and a 7805 voltage regulator. The circuit is designed to power the components using an AC supply, convert the AC voltage to DC using a bridge rectifier, and regulate the voltage to 5V using the 7805 voltage regulator. The Arduino UNO controls the ultrasonic sensor and the servo motor.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

HC-SR04 Ultrasonic Sensor

• Description: An ultrasonic distance sensor.
• Pins: VCC, TRIG, ECHO, GND

Micro servo 9G

• Description: A small servo motor.
• Pins: GND, +5V, PWM

AC Supply

• Description: An AC power supply.
• Pins: +ve, -ve

Bridge Rectifier

• Description: A device that converts AC to DC.
• Pins: Source_in-, source_out-, source_out+, source_in+

7805 Voltage Regulator

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

Wiring Details

Arduino UNO

• 5V: Connected to +5V of Micro servo 9G and VCC of HC-SR04 Ultrasonic Sensor
• GND: Connected to GND of Micro servo 9G, GND of HC-SR04 Ultrasonic Sensor, GND of 7805, and source_out- of Bridge Rectifier
• Vin: Connected to Vout of 7805
• D11: Connected to TRIG of HC-SR04 Ultrasonic Sensor
• D10: Connected to ECHO of HC-SR04 Ultrasonic Sensor
• D9: Connected to PWM of Micro servo 9G

HC-SR04 Ultrasonic Sensor

• VCC: Connected to 5V of Arduino UNO and +5V of Micro servo 9G
• GND: Connected to GND of Arduino UNO, GND of Micro servo 9G, GND of 7805, and source_out- of Bridge Rectifier
• TRIG: Connected to D11 of Arduino UNO
• ECHO: Connected to D10 of Arduino UNO

Micro servo 9G

• +5V: Connected to 5V of Arduino UNO and VCC of HC-SR04 Ultrasonic Sensor
• GND: Connected to GND of Arduino UNO, GND of HC-SR04 Ultrasonic Sensor, GND of 7805, and source_out- of Bridge Rectifier
• PWM: Connected to D9 of Arduino UNO

AC Supply

• +ve: Connected to Source_in- of Bridge Rectifier
• -ve: Connected to Source_in+ of Bridge Rectifier

Bridge Rectifier

• Source_in-: Connected to +ve of AC Supply
• Source_in+: Connected to -ve of AC Supply
• Source_out+: Connected to Vin of 7805
• Source_out-: Connected to GND of Arduino UNO, GND of HC-SR04 Ultrasonic Sensor, GND of Micro servo 9G, and GND of 7805

7805 Voltage Regulator

• Vin: Connected to Source_out+ of Bridge Rectifier
• Gnd: Connected to GND of Arduino UNO, GND of HC-SR04 Ultrasonic Sensor, GND of Micro servo 9G, and source_out- of Bridge Rectifier
• Vout: Connected to Vin of Arduino UNO

Documented Code

Arduino UNO 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)