Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes various components such as a 12V battery, LED, resistors, an Arduino UNO, a DC-DC converter, a webcam, servos, a Raspberry Pi, an ultrasonic sensor, and a step-up converter. The circuit is designed to interface these components to perform specific tasks, with the Arduino UNO and Raspberry Pi acting as the primary controllers.

Component List

1. 12V Battery

   • Pins: -, +
   • Description: Provides 12V power supply to the circuit.
   • Properties: None

2. LED: Two Pin (blue)

   • Pins: cathode, anode
   • Description: A blue LED used for visual indication.
   • Properties: None

3. Resistor

   • Pins: pin1, pin2
   • Description: Limits the current flowing through the LED.
   • Properties:
     • Resistance: 200 Ohms

4. Arduino UNO

   • 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, USB-type B
   • Description: Microcontroller used to control various components.
   • Properties: None

5. DCDC 12V/5V 3A

   • Pins: 12V (+), GND, 5V (+), Vin (+), V in (-)
   • Description: Converts 12V to 5V for powering components.
   • Properties: None

6. Webcam

   • Pins: USB
   • Description: Captures video input.
   • Properties: None

7. MG996R Servo Motor

   • Pins: GND, VCC, SIG
   • Description: Servo motor for mechanical movement.
   • Properties: None

8. 5V to 12V Step-up Converter

   • Pins: V1, GND, V0
   • Description: Steps up 5V to 12V.
   • Properties: None

9. Raspberry Pi 4 B

   • Pins: usb 2.0, usb 3.0, Micro HDMI PORT 1, Micro HDMI PORT 2, usb-c Power Supply, Gigabit Ethernet
   • Description: Single-board computer for processing and control.
   • Properties: None

10. HC-SR05 Ultrasonic Sensor

    • Pins: VCC, TRIG, ECHO, GND
    • Description: Measures distance using ultrasonic waves.
    • Properties: None

11. Earphone

    • Pins: None
    • Description: Audio output device.
    • Properties: None

Wiring Details

12V Battery

• + connected to Vin (+) of DCDC 12V/5V 3A
• - connected to V in (-) of DCDC 12V/5V 3A
• + connected to V0 of 5V to 12V Step-up Converter
• - connected to GND of 5V to 12V Step-up Converter

LED: Two Pin (blue)

• cathode connected to D2 of Arduino UNO
• anode connected to pin1 of Resistor

Resistor

• pin1 connected to anode of LED: Two Pin (blue)
• pin2 connected to GND of Arduino UNO

Arduino UNO

• USB-type B connected to usb 3.0 of Raspberry Pi 4 B
• D2 connected to cathode of LED: Two Pin (blue)
• GND connected to pin2 of Resistor
• 5V connected to VCC of HC-SR05
• GND connected to GND of HC-SR05
• A1 connected to TRIG of HC-SR05
• A2 connected to ECHO of HC-SR05
• D10 connected to SIG of MG996R Servo Motor
• D9 connected to SIG of MG996R Servo Motor

DCDC 12V/5V 3A

• 5V (+) connected to usb-c Power Supply of Raspberry Pi 4 B
• GND connected to usb-c Power Supply of Raspberry Pi 4 B
• Vin (+) connected to + of 12V Battery
• V in (-) connected to - of 12V Battery

Webcam

• USB connected to usb 2.0 of Raspberry Pi 4 B

MG996R Servo Motor

• SIG connected to D10 of Arduino UNO
• SIG connected to D9 of Arduino UNO
• VCC connected to V1 of 5V to 12V Step-up Converter
• GND connected to GND of 5V to 12V Step-up Converter

5V to 12V Step-up Converter

• V1 connected to VCC of MG996R Servo Motor
• GND connected to GND of MG996R Servo Motor
• V0 connected to + of 12V Battery
• GND connected to - of 12V Battery

Raspberry Pi 4 B

• usb 2.0 connected to USB of Webcam
• usb 3.0 connected to USB-type B of Arduino UNO
• usb-c Power Supply connected to 5V (+) and GND of DCDC 12V/5V 3A

HC-SR05 Ultrasonic Sensor

• VCC connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO
• TRIG connected to A1 of Arduino UNO
• ECHO connected to A2 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)

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