Circuit Documentation

Summary

This circuit is composed of various sensors, actuators, power management components, and microcontrollers. It is designed to interface with motors, sensors, and communication modules to perform a range of functions, likely related to sensing, data acquisition, and control. The main controller appears to be an Arduino UNO, which is interfaced with a GPS module, a LIDAR sensor, a motor driver, a servo, an ESP32-CAM, voltage regulators, and multiple water level sensors. The circuit is powered by a 12V battery, with voltage regulation provided for components requiring 5V and 3.3V inputs.

Component List

Power Supply

• 12v Battery: Provides the main power source for the circuit.
• 7805 Voltage Regulator: Regulates voltage to 5V for components requiring this voltage level.
• 3.3V Regulator: Provides a 3.3V supply for components that operate at this voltage level.

Controllers

• Arduino UNO: Acts as the main microcontroller for managing inputs and outputs to various sensors and actuators.
• ESP-8266 Controller: A Wi-Fi capable microcontroller for wireless communication.
• ESP32 - CAM: A camera module with Wi-Fi capabilities, likely used for image capture and processing.

Sensors

• SparkFun Accessories LIDAR-Lite v3: A compact, high-performance optical distance measurement sensor.
• GPS NEO 6M: A GPS module for location tracking.
• Water Level Sensor: Used to detect the level of water in a container or environment. Three instances of this sensor are used in the circuit.
• rtc MODULE: A real-time clock module for timekeeping.

Actuators

• L298N DC Motor Driver: An H-bridge motor driver for controlling the direction and speed of DC motors.
• Servo: A small rotary actuator controlled by PWM signals.
• DC Motor: Two instances of DC motors controlled by the motor driver.

Miscellaneous

• Comments: Several comment components are included, which are placeholders for additional notes or instructions.

Wiring Details

Power Distribution

• 12v Battery:

  • + to 7805 Vin and 3.3V Regulator Vin
  • - to GND of all components requiring ground connection.

• 7805 Voltage Regulator:

  • Vin from 12v Battery +
  • Gnd to common ground
  • Vout to 5V inputs of Arduino UNO and other 5V components.

• 3.3V Regulator:

  • Vin from 12v Battery +
  • GND to common ground
  • OUT to 3.3V inputs of ESP-8266 Controller and ESP32 - CAM.

Controllers

• Arduino UNO:
  • GND to common ground
  • 5V to 5V components
  • A0 to L298N IN4
  • A1 to Servo PWM
  • A4 to LIDAR SDA (blue) and rtc MODULE SDA
  • A5 to LIDAR SCL (green) and rtc MODULE SCL
  • D2 to RX of ESP-8266 and VOT of ESP32 - CAM
  • D3 to TX of ESP-8266 and VOR of ESP32 - CAM
  • D4 to TX of GPS NEO 6M
  • D5 to RX of GPS NEO 6M
  • D6 to Water Level Sensor SIG
  • D7 to Water Level Sensor SIG
  • D8 to Water Level Sensor SIG
  • D9 to L298N ENA
  • D10 to L298N IN1
  • D11 to L298N IN2
  • D12 to L298N ENB
  • D13 to L298N IN3

Sensors and Actuators

• L298N DC Motor Driver:

  • GND to common ground
  • 5V from Arduino UNO 5V
  • 12V from 12v Battery +
  • IN1, IN2, IN3, IN4, ENA, ENB controlled by Arduino UNO
  • OUT1, OUT2 to DC Motor
  • OUT3, OUT4 to DC Motor

• Servo:

  • GND to common ground
  • VCC from Arduino UNO 5V
  • PWM controlled by Arduino UNO A1

• Water Level Sensors:

  • GND to common ground
  • VCC from Arduino UNO 5V
  • SIG to Arduino UNO D6, D7, D8

• GPS NEO 6M:

  • GND to common ground
  • VCC from Arduino UNO 5V
  • RX to Arduino UNO D5
  • TX to Arduino UNO D4

• SparkFun Accessories LIDAR-Lite v3:

  • GND to common ground
  • 5V (red) from Arduino UNO 5V
  • SDA (blue) to Arduino UNO A4
  • SCL (green) to Arduino UNO A5

• rtc MODULE:

  • GND to common ground
  • VCC from Arduino UNO 5V
  • SDA to Arduino UNO A4
  • SCL to Arduino UNO A5

• DC Motors:

  • pin 1 and pin 2 connected to L298N OUT1, OUT2, OUT3, OUT4

Communication Modules

• ESP-8266 Controller:

  • GND to common ground
  • 3V3 from 3.3V Regulator OUT
  • RX to Arduino UNO D2
  • TX to Arduino UNO D3

• ESP32 - CAM:

  • GND to common ground
  • 3V3 from 3.3V Regulator OUT
  • VOT to Arduino UNO D2
  • VOR to Arduino UNO D3

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:

}

Note: The provided code for the Arduino UNO is a template with empty setup and loop functions. The actual functionality needs to be implemented based on the specific requirements of the circuit.