Circuit Documentation

Summary

This circuit is designed to interface various sensors, actuators, and a microcontroller to perform a set of tasks that likely involve environmental sensing, data processing, and actuation based on sensor inputs. The core of the circuit is an Arduino Nano, which controls a servo motor, a relay module, a motor driver for two DC motors, and interfaces with a rain sensor, a voice recognition module, and a photocell (LDR). A 7805 voltage regulator is used to provide a stable 5V supply to the components from a 18650 Li-Ion battery, and a toggle switch is included to control power to the circuit.

Component List

• Photocell (LDR): A light-sensitive resistor that changes its resistance based on the light intensity.
• 1 Channel 5V Relay Module: An electrically operated switch that allows the Arduino to control higher power devices.
• Motor Amarillo Motorreductor Hobby: A DC motor with a gearbox for increased torque.
• Arduino Nano: A small, complete, and breadboard-friendly microcontroller board based on the ATmega328P.
• 18650 Li-Ion Battery: A rechargeable battery providing the power source for the circuit.
• Tower Pro SG90 Servo: A small and lightweight servo motor capable of precise control.
• Resistor (10k Ohms): A passive component used to create resistance in the flow of electric current.
• RAIN SENSOR: A sensor that detects the presence of water or rain.
• DF ROBOT GRAVITY VOICE RECOGNITION MODULE: A module that can recognize voice commands.
• L298N DC Motor Driver: A driver module capable of controlling two DC motors with direction and speed control.
• Front Light: A light source, possibly for illumination or indication.
• 7805 Voltage Regulator: A component that converts a higher input voltage into a stable 5V output voltage.
• Toggle Switch SPST: A single-pole single-throw switch used to control the power supply to the circuit.

Wiring Details

Photocell (LDR)

• pin 0: Connected to 5V supply.
• pin 1: Connected to one end of a 10k Ohm resistor, other end to GND, and to Arduino Nano A0 for analog input.

1 Channel 5V Relay Module

• VCC+: Connected to Arduino Nano 5V.
• VCC- (GND): Connected to GND.
• IN: Controlled by Arduino Nano D7.
• N.O.: Connected to the positive side of a front light.
• COM: Connected to the positive voltage supply through a toggle switch.
• N.C.: Connected to the positive side of another front light.

Motor Amarillo Motorreductor Hobby (Two Instances)

• vcc: Connected to L298N DC motor driver OUT2 and OUT4 respectively.
• GND: Connected to L298N DC motor driver OUT1 and OUT3 respectively.

Arduino Nano

• D1/TX, D0/RX, RESET, D2, D4, D5, D8, D12/MISO, A7, A6, A2, A3, AREF, 3V3, D13/SCK: Not connected.
• GND: Common ground for the circuit.
• D3: Connected to Tower Pro SG90 servo Signal.
• D6, D9, D10, D11/MOSI: Control signals for L298N DC motor driver.
• VIN: Connected to 7805 Voltage Regulator output and Toggle Switch SPST COM.
• 5V: Supplies power to the 1 Channel 5V Relay Module VCC+.
• A0: Receives analog input from Photocell (LDR) through a 10k Ohm resistor.
• A1: Receives analog input from RAIN SENSOR AO.
• A4, A5: Connected to DF ROBOT GRAVITY VOICE RECOGNITION MODULE D/T and C/R respectively.

18650 Li-Ion Battery

• Positive: Connected to Toggle Switch SPST L1.
• Negative: Common ground for the circuit.

Tower Pro SG90 Servo

• Signal: Controlled by Arduino Nano D3.
• +5V: Connected to 5V supply.
• GND: Common ground for the circuit.

Resistor (10k Ohms)

• pin1: Connected to Photocell (LDR) pin 1.
• pin2: Connected to GND.

RAIN SENSOR

• AO: Connected to Arduino Nano A1.
• DO: Not connected.
• GRD: Common ground for the circuit.
• VCC: Connected to 5V supply.

DF ROBOT GRAVITY VOICE RECOGNITION MODULE

• D/T: Connected to Arduino Nano A4.
• C/R: Connected to Arduino Nano A5.
• GND: Common ground for the circuit.
• VCC: Connected to 5V supply.
• -: Not connected.
• +: Not connected.

L298N DC Motor Driver

• OUT1, OUT2, OUT3, OUT4: Connected to the two Motor Amarillo Motorreductor Hobby instances.
• 12V: Connected to the positive voltage supply through a toggle switch.
• GND: Common ground for the circuit.
• 5V: Not connected.
• 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, ENB: Not connected.
• IN1, IN2, IN3, IN4: Controlled by Arduino Nano D11/MOSI, D10, D9, D6 respectively.

Front Light (Two Instances)

• POSITIF: One connected to 1 Channel 5V Relay Module N.O., the other to N.C.
• NEGATIF: Common ground for the circuit.

7805 Voltage Regulator

• Vin: Connected to the positive voltage supply through a toggle switch.
• Gnd: Common ground for the circuit.
• Vout: Connected to 5V supply for the circuit.

Toggle Switch SPST

• L1: Connected to 18650 Li-Ion Battery Positive.
• COM: Connected to 7805 Voltage Regulator Vin, Arduino Nano VIN, and L298N DC motor driver 12V.

Documented Code

Arduino Nano (Instance ID: 9eeb13a1-4dae-44cc-aaea-7695383bdaac)

sketch.ino

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

documentation.txt

(No additional documentation provided for the code)

(Note: The provided code is a template with no specific functionality. It needs to be filled in with the logic to control the circuit based on the requirements of the project.)