Circuit Documentation

Summary

The circuit in question is designed to interface a Raspberry Pi 5 with various peripherals including camera modules, a display, motor drivers, and solid-state relays. It is powered by a Lithium-ion battery and includes a rocker switch for power control. The Raspberry Pi 5 controls the motors through an L298N DC motor driver and captures images from the camera modules. The display is connected via HDMI and USB for power and touch screen functionality. Solid-state relays are used for controlling external devices, possibly for switching power lines. The circuit is designed to be modular, with the ability to control and interact with the connected components programmatically.

Component List

Raspberry Pi 5

• A microcontroller board with multiple GPIO pins and interfaces such as HDMI, USB, Ethernet, and camera ports.

Cam module 3 Wide Angle

• Camera modules that connect to the Raspberry Pi for capturing wide-angle images.

L298N DC motor driver

• A motor driver module that allows the Raspberry Pi to control DC motors.

Rocker Switch

• A mechanical switch used to control the power supply to the circuit.

12V Geared Motor

• DC motors with gear reduction for increased torque.

Display 7 inch

• A 7-inch display with HDMI input and USB connectivity for power and touch screen functionality.

Solid State Relay 1x

• Electronic switching devices that allow the Raspberry Pi to control high power devices.

Lithium-ion Battery 10000mah

• A rechargeable battery providing the power source for the circuit.

Wiring Details

Raspberry Pi 5

• Camera 2 connected to Cam module 3 Wide Angle
• Micro HDMI 1 connected to Display 7 inch HDMI
• Camera 1 connected to another Cam module 3 Wide Angle
• USB 3.0 connected to Display 7 inch USB Power
• USB 2.0 connected to Display 7 inch USB Touch Screen
• GND connected to Solid State Relay 1x DC-, L298N DC motor driver GND, and Lithium-ion Battery GND
• GPIO 23, 24, 25, 2, 3, 17, 27, 22, 5 connected to various pins on the L298N DC motor driver for control signals
• GPIO 2, 3 connected to Solid State Relay 1x DC+ for control signals

Cam module 3 Wide Angle

• Camera Pin connected to Raspberry Pi Camera ports

L298N DC motor driver

• IN1, IN2, IN3, IN4, ENA, ENB controlled by Raspberry Pi GPIO pins
• OUT1, OUT2, OUT3, OUT4 connected to 12V Geared Motors
• 12V connected to Rocker Switch
• GND connected to Raspberry Pi GND and Lithium-ion Battery GND
• 5V-ENA-JMP-I jumpered to 5V-ENA-JMP-O for enabling motor driver

Rocker Switch

• 1 connected to Lithium-ion Battery 11.1V
• 2 connected to L298N DC motor driver 12V

12V Geared Motor

• Terminal 1, Terminal 2 connected to L298N DC motor driver OUT pins

Display 7 inch

• HDMI connected to Raspberry Pi Micro HDMI 1
• USB Power connected to Raspberry Pi USB 3.0
• USB Touch Screen connected to Raspberry Pi USB 2.0

Solid State Relay 1x

• CH1 not connected (control signal not specified)
• DC- connected to Raspberry Pi GND
• DC+ connected to Raspberry Pi GPIO 2 and GPIO 3

Lithium-ion Battery 10000mah

• 11.1V connected to Rocker Switch
• GND connected to Raspberry Pi GND and L298N DC motor driver GND

Documented Code

Raspberry Pi 5 Code (sketch.ino)

import RPi.GPIO as GPIO
import time
import picamera
import threading

This code snippet imports the necessary libraries for GPIO pin control, time-based functions, camera interface, and threading for concurrent operations on the Raspberry Pi.

Additional Notes

• The code provided is a Python script, not an Arduino sketch (.ino), despite the file extension.
• The actual functionality of the code is not provided, so further implementation details are required to complete the application.
• The documentation.txt file is empty, indicating that additional documentation is expected to be written by the user.