Project Arduino Code Library

Summary of the Circuit:

This circuit consists of an Arduino UNO microcontroller, a red two-pin LED, and a resistor. The purpose of the circuit is to control the LED using one of the digital pins (D13) on the Arduino UNO. The LED is connected to the Arduino with a series resistor to limit the current through the LED, protecting it from damage. The circuit is powered by the Arduino UNO, which provides a ground reference and a control signal to the LED.

Component List:

Arduino Uno

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D13-D0.
• Purpose: Acts as the main controller for the circuit, providing power and control signals to the LED.

LED: Two Pin (red)

• Description: A basic red light-emitting diode
• Pins: cathode, anode
• Purpose: Emits light when powered

Resistor

• Description: A passive two-terminal electrical component that implements electrical resistance as a circuit element
• Pins: pin1, pin2
• Properties: Resistance value of 220 Ohms
• Purpose: Limits the current flowing through the LED to prevent damage

Wiring Details:

Arduino Uno

• GND: Connected to the cathode of the LED
• D13: Connected to pin2 of the Resistor

LED: Two Pin (red)

• cathode: Connected to GND on the Arduino UNO
• anode: Connected to pin1 of the Resistor

Resistor

• pin1: Connected to the anode of the LED
• pin2: Connected to D13 on the Arduino UNO

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Summary of the Circuit:

The circuit described is a simple Bluetooth-controlled buzzer system that uses an Arduino UNO as the main microcontroller. The Arduino UNO is interfaced with a Bluetooth HC-06 module for wireless communication and a passive buzzer for audio signaling. The circuit is designed to activate the buzzer when a specific signal is received via Bluetooth.

Component List:

Bluetooth HC-06

• Description: A Bluetooth module that allows for wireless communication.
• Pins:
  • VCC: Power supply input
  • GND: Ground Connection
  • TXD: Transmit Data
  • RXD: Receive Data

Passive Buzzer

• Description: An electromechanical component that produces sound when an electrical signal is applied
• Pins
  • D0-D13: Digital input/output pins
  • A0-A5: Analog input pins
  • 5V: Power supply output
  • GND: Ground connection
  • Vin, 3.3V, IOREF, Reset, SCL, SDA, AREF: Various control and power pins

Wiring Details:

Bluetooth HC-06

• VCC connected to Arduino UNO 5V
• GND connected to Arduino UNO GND
• TXD connected to Arduino UNO D0
• RXD connected to Arduino UNO D1

Passive Buzzer HW-508

• Signal connected to Arduino UNO D10
• +5V connected to Arduino UNO 5V
• Ground connected to Arduino UNO GND

Arduino UNO

• 5V provides power to Bluetooth HC-06 and Passive Buzzer
• GND provides common ground to Bluetooth HC-06 and Passive Buzzer
• D0 connected to Bluetooth HC-06 TXD
• D1 connected to Bluetooth HC-06 RXD
• D10 connected to Passive Buzzer Signal

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Summary of the Circuit:

This circuit is designed to control four DC motors using two L298N DC motor drivers, which are interfaced with an Arduino UNO microcontroller. The circuit also includes a Bluetooth HC-06 module for wireless communication, presumably to receive control commands for the motors. Power is supplied by a series of Li-ion 18650 batteries. The Arduino UNO is programmed to interact with the motor drivers and the Bluetooth module to facilitate the control of the motors.

Component List:

Microcontroller

• Arduino UNO: A microcontroller board based on the ATmega328P. It has digital input/output pins, analog inputs, a USB connection for programming, and power management features

Motor Drivers

• L298N DC Motor Driver: A high-power motor driver capable of driving up to two DC motors. It has inputs for motor control signals and outputs for motor connections.

Bluetooth Module

• Bluetooth HC-06: A Bluetooth module that allows for wireless communication with the Arduino. It has transmit (TX) and receive (RX) pins for serial communication.

Motors

• DC Motor: An electric motor that runs on direct current (DC) electricity. Four of these motors are included in the circuit.

Batteries

• Li-ion 18650 Battery: A rechargeable battery that provides power to the circuit. Three of these batteries are used to supply the necessary voltage and current.

Wiring Details:

Arduino UNO

• 5VConnected to the 5V pins of both L298N motor drivers and the VCC pin of the Bluetooth HC-06 module.
• GNDConnected to the GND pin of the Bluetooth HC-06 module and the GND pins of both L298N motor drivers
• D0 (RX)Connected to the TXD pin of the Bluetooth HC-06 module
• D1 (TX)Connected to the RXD pin of the Bluetooth HC-06 module
• D4, D5, D6, D7, D8, D9, D10, D11Connected to the IN1, IN2, IN3, and IN4 pins of both L298N motor drivers for motor control signals

L298N DC Motor Driver (First Driver)

• 12VConnected to the positive terminal of the Li-ion 18650 battery as the first driver
• GNDConnected to the negative terminal of the Li-ion 18650 battery as the first driver
• 5VConnected to the 5V output of the Arduino UNO
• IN1, IN2, IN3, IN4Connected to the corresponding control pins on the Arduino UNO
• OUT1, OUT2Connected to one DC motor
• OUT3, OUT4Connected to another DC motor

L298N DC Motor Driver (Second Driver)

• 12VConnected to the same positive terminal of the Li-ion 18650 battery as the first driver
• GNDConnected to the same negative terminal of the Li-ion 18650 battery as the first driver
• 5VConnected to the 5V output of the Arduino UNO
• IN1, IN2, IN3, IN4Connected to the corresponding control pins on the Arduino UNO
• OUT1, OUT2Connected to one DC motor
• OUT3, OUT4Connected to another DC motor

Bluetooth HC-06

• VCCConnected to the 5V output of the Arduino UNO
• GNDConnected to the GND pin of the Arduino UNO
• TXDConnected to the D0 (RX) pin of the Arduino UNO
• RXDConnected to the D1 (TX) pin of the Arduino UNO

DC Motors

• Each motor has two pins connected to the OUT1/OUT2 or OUT3/OUT4 outputs of the L298N motor drivers

Li-ion 18650 Batteries

• The batteries are connected in series to provide the required voltage for the motor drivers

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Summary of the Circuit:

This circuit is designed to control two DC motors using an Arduino UNO microcontroller and an L298N DC motor driver. The circuit includes flex resistors for sensing, standard resistors for current limiting or voltage division, and a power supply composed of Li-ion 18650 batteries. The Arduino UNO interfaces with the L298N driver to control the speed and direction of the motors. The flex resistors may be used for input to the Arduino to adjust the motor control dynamically.

Component List:

2.2 inch Basic Flex Resistor

• Description: A flex sensor that changes resistance when bent
• Purpose: Typically used to detect physical bending in applications such as robotics or wearable technology

Resistor (10k Ohms)

• Description: A passive two-terminal electrical component that implements electrical resistance as a circuit element
• Purpose: Often used for current limiting or voltage division
• Resistance: 10,000 Ohms

Arduino UNO

• Description: A microcontroller board based on the ATmega328P
• Purpose: Acts as the central controller for the circuit, interfacing with sensors and controlling the motor driver

DC Motor

• Description: An electric motor that runs on direct current (DC) electricity
• Purpose: Converts electrical energy into mechanical motion

L298N DC Motor Driver

• Description: A motor driver module that can control up to two DC motors
• Purpose: Allows the Arduino to control the speed and direction of the motors

Li-ion 18650 Battery

• Description: A rechargeable battery standard for powering electronics and electric vehicles
• Purpose: Provides the power source for the circuit

Wiring Details:

2.2 inch Basic Flex Resistor

• One pin connected to the Arduino GND.
• The other pin connected to a 10k Ohm resistor, forming a voltage divider.

Resistor (10k Ohms)

• One pin connected to a flex resistor and the other pin connected to an analog input on the Arduino UNO (A0 or A1)

Arduino UNO

• Analog inputs (A0, A1) connected to the 10k Ohm resistors
• Digital outputs (D8, D9, D10, D11) connected to the L298N motor driver inputs (IN1, IN2, IN3, IN4)
• 5V and GND pins provide power to the L298N motor driver
• GND also connected to the flex resistors

DC Motor

• Each motor has two pins connected to the L298N motor driver outputs (OUT1, OUT2 for one motor and OUT3, OUT4 for the other)

L298N DC Motor Driver

• Input pins (IN1, IN2, IN3, IN4) connected to the Arduino digital outputs
• Output pins (OUT1, OUT2, OUT3, OUT4) connected to the DC motors
• Power pins (12V, GND) connected to the Li-ion battery pack
• 5V pin connected to the Arduino 5V pin

Li-ion 18650 Battery

• Batteries connected in series to provide the required voltage for the motor driver
• Positive terminal of the first battery connected to the 12V input of the L298N motor driver
• Negative terminal of the last battery in the series connected to the GND of the L298N motor driver

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Summary of the Circuit:

This circuit integrates an Arduino UNO microcontroller with a passive buzzer and a KY-026 Flame Sensor. The Arduino UNO serves as the central processing unit, controlling the buzzer and reading data from the flame sensor. The passive buzzer is used to produce an audible alert, while the flame sensor detects the presence of a flame and provides both analog and digital outputs. The circuit is powered by the Arduino UNO's 5V output, which also powers the passive buzzer and the flame sensor. Ground connections are shared among all components to complete the circuit.

Component List:

Arduino UNO

• Description: A microcontroller board based on the ATmega328P
• Purpose: Acts as the central controller for the circuit, interfacing with the passive buzzer and the flame sensor
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D0-D13

Passive Buzzer

• Description: An electromechanical component that produces sound when an electrical signal is applied
• Purpose: Emits an audible alert when triggered by the Arduino
• Pins: Signal, +5V, Ground

KY-026 Flame Sensor

• Description: A sensor module designed to detect the presence of a flame or fire
• Purpose: Provides analog and digital signals to the Arduino UNO indicating the presence of a flame
• Pins: A0, GND, VCC, D0

Wiring Details:

Arduino UNO

• 5V connected to:
• Passive Buzzer +5V
• KY-026 Flame Sensor VCC
• GND connected to:
• Passive Buzzer Ground
• KY-026 Flame Sensor GND
• A0 connected to KY-026 Flame Sensor A0
• D2 connected to Passive Buzzer Signal

Passive Buzzer

• Signal connected to Arduino UNO D2
• +5V connected to Arduino UNO 5V
• Ground connected to Arduino UNO GND

KY-026 Flame Sensor

• A0 connected to Arduino UNO A0
• GND connected to Arduino UNO GND
• VCC connected to Arduino UNO 5V
• D0 (not connected in this circuit)

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Summary of the Circuit:

This circuit is designed to control multiple DC motors using L298N motor drivers, which are interfaced with an Arduino UNO microcontroller. The circuit also includes KY-023 Dual Axis Joystick Modules for user input and Li-ion 18650 batteries for power supply. The Arduino UNO reads the joystick inputs and accordingly controls the speed and direction of the DC motors through the L298N drivers.

Component List:

Arduino UNO

• Description: A microcontroller board based on the ATmega328P
• Purpose: Acts as the central controller for the circuit, interfacing with the Motor driver(s) and joy stick(s)
• 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

L298N DC Motor Driver

• Description: A motor driver module capable of driving two DC motors
• Purpose: Drives the DC motor when receives instructions from the microcontroller
• Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

DC Motor

• Description: A standard DC motor with two connection pins.
• Pins: Pin 1, Pin 2

Li-ion 18650 Battery

• Description: A rechargeable battery used to power the circuit.
• Pins: +ve, -ve terminal pins

KY-023 Dual Axis Joystick Module

• Description: A joystick module that provides two analog outputs corresponding to the X and Y axes and one digital output for the switch.
• Pins: GND, +5V, VRx, VRy, SW

KY-023 Dual Axis Joystick Module

• Description: A joystick module that provides two analog outputs corresponding to the X and Y axes and one digital output for the switch.
• Pins: GND, +5V, VRx, VRy, SW

Wiring Details:

L298N DC Motor Driver

• 5V connected to:
• +5V from Arduino UNO
• KY-023 Joystick Modules
• GND connected to:
• GND from Arduino UNO
• Li-ion 18650 Battery
• 12V connected to + from Li-ion 18650 Battery
• IN1, IN2, IN3, IN4 connected to various digital pins on Arduino UNO for motor control
• OUT1, OUT2, OUT3, OUT4 connected to DC Motor pins

DC Motor

• pin 1 and pin 2 of 1st motor connected to OUT1, OUT2 of L298N DC Motor Drivers
• pin 1 and pin 2 of 2nd motor connected to OUT3, OUT4 of L298N DC Motor Drivers

Arduino UNO

• 5V and GND connected to power the KY-023 Joystick Modules and L298N DC Motor Drivers
• Digital and analog pins used to interface with the L298N DC Motor Drivers and KY-023 Joystick Modules

KY-023 Dual Axis Joystick Module

• +5V and GND connected to 5V and GND on Arduino UNO
• VRx and VRy connected to analog pins on Arduino UNO for X and Y axis readings
• SW connected to a digital pin on Arduino UNO for switch state reading

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Summary of the Circuit:

This circuit integrates an Arduino UNO microcontroller with an LCD display, a trimmer potentiometer, a resistor, and a PIR sensor. The Arduino UNO serves as the central processing unit, controlling the LCD display for user interface and reading signals from the PIR sensor to detect motion. The trimmer potentiometer is used to adjust the contrast of the LCD display, and the resistor is likely used for current limiting purposes. The PIR sensor is used to detect motion in the environment.

Component List:

Arduino UNO

• Description: A microcontroller board based on the ATmega328P
• Purpose: Acts as the central controller for the circuit, interfacing with the Motor driver(s) and joy stick(s)
• 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

L298N DC Motor Driver

• Description: A motor driver module capable of driving two DC motors
• Purpose: Drives the DC motor when receives instructions from the microcontroller
• Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

DC Motor

• Description: A standard DC motor with two connection pins.
• Pins: Pin 1, Pin 2

Li-ion 18650 Battery

• Description: A rechargeable battery used to power the circuit.
• Pins: +ve, -ve terminal pins

KY-023 Dual Axis Joystick Module

• Description: A joystick module that provides two analog outputs corresponding to the X and Y axes and one digital output for the switch.
• Pins: GND, +5V, VRx, VRy, SW

KY-023 Dual Axis Joystick Module

• Description: A joystick module that provides two analog outputs corresponding to the X and Y axes and one digital output for the switch.
• Pins: GND, +5V, VRx, VRy, SW

Wiring Details:

L298N DC Motor Driver

• 5V connected to:
• +5V from Arduino UNO
• KY-023 Joystick Modules
• GND connected to:
• GND from Arduino UNO
• Li-ion 18650 Battery
• 12V connected to + from Li-ion 18650 Battery
• IN1, IN2, IN3, IN4 connected to various digital pins on Arduino UNO for motor control
• OUT1, OUT2, OUT3, OUT4 connected to DC Motor pins

DC Motor

• pin 1 and pin 2 of 1st motor connected to OUT1, OUT2 of L298N DC Motor Drivers
• pin 1 and pin 2 of 2nd motor connected to OUT3, OUT4 of L298N DC Motor Drivers

Arduino UNO

• 5V and GND connected to power the KY-023 Joystick Modules and L298N DC Motor Drivers
• Digital and analog pins used to interface with the L298N DC Motor Drivers and KY-023 Joystick Modules

KY-023 Dual Axis Joystick Module

• +5V and GND connected to 5V and GND on Arduino UNO
• VRx and VRy connected to analog pins on Arduino UNO for X and Y axis readings
• SW connected to a digital pin on Arduino UNO for switch state reading

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Summary of the Circuit:

This circuit integrates an Arduino UNO microcontroller with an LCD display, a trimmer potentiometer, a resistor, and an HC-SR04 ultrasonic sensor. The Arduino UNO serves as the central processing unit, controlling the LCD display and interfacing with the ultrasonic sensor for distance measurements. The trimmer potentiometer is used to adjust the contrast of the LCD display, and the resistor is likely used for current limiting purposes, possibly for an LED backlight on the LCD display. The HC-SR04 ultrasonic sensor is used to measure distances by emitting ultrasonic pulses and measuring the time it takes for the echoes to return.

Component List:

Arduino UNO

• Description: Microcontroller board based on the ATmega328P
• Purpose: Provides digital I/O pins, analog inputs, and various power outputs

LCD Display (16 pin)

• Description: A 16-pin liquid crystal display for showing data
• Purpose: Requires digital control signals and power connections

Trimmer Potentiometer

• Description: A variable resistor with a range of 10k Ohms.
• Purpose: Used to adjust voltage levels, such as the contrast for the LCD

Resistor

• Description: A fixed resistor with a resistance of 220 Ohms.
• Purpose: Typically used for current limiting or voltage division

HC-SR04 Ultrasonic Sensor

• Description: A sensor for measuring distance via ultrasonic sound waves.
• Purpose: To measure distance and transfer signals to micro controller.
• Pins: Requires power, ground, and two digital control signals

Wiring Details:

Arduino UNO

• GND connected to common ground
• 5V provides power to the circuit
• D9 connected to TRIG pin of the HC-SR04 Ultrasonic Sensor
• D10 connected to the ECHO pin of the HC-SR04 Ultrasonic Sensor
• D2-D5 connected to DB4-DB7 of the LCD Display for data transmission
• D12 connected to the RS pin of the LCD Display for register select
• D11 connected to the E pin of the LCD Display for enabling data write

LCD Display (16 pin)

• VSS connected to common ground
• VDD connected to 5V power supply
• VO connected to the wiper of the Trimmer Potentiometer for contrast adjustment
• RS (register select) connected to Arduino UNO D12
• R_W (read/write) connected to common ground (write mode)
• E (enable) connected to Arduino UNO D11
• DB4-DB7 connected to Arduino UNO D2-D5 for 4-bit data mode
• A and K (anode and cathode) not mentioned in the net list, likely for backlight

Trimmer Potentiometer

• leg1 connected to common ground
• wiper connected to VO pin of the LCD Display for contrast control
• leg2 connected to 5V power supply

Resistor

• pin1 not mentioned in the net list, likely connected to the anode (A) of the LCD backlight
• pin2 connected to common ground

HC-SR04 Ultrasonic Sensor

• VCC connected to 5V power supply
• GND connected to common ground
• TRIG connected to Arduino UNO D9 for triggering ultrasonic pulses
• ECHO connected to Arduino UNO D10 for receiving echo pulsesy

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Summary of the Circuit:

This circuit is designed to control multiple DC motors using L298N motor driver modules, which are interfaced with an Arduino UNO microcontroller. The circuit also includes IR sensors for input and Li-ion 18650 batteries for power supply. The Arduino UNO receives signals from the IR sensors and sends control signals to the L298N modules to drive the motors accordingly. The batteries provide the necessary power to the motor drivers and the microcontroller.

Component List:

Microcontroller

• Arduino UNO: A microcontroller board based on the ATmega328P. It has digital input/output pins, analog inputs, a USB connection for programming, and power management features

Motor Drivers

• L298N DC Motor Driver: A high-power motor driver capable of driving up to two DC motors. It has inputs for motor control signals and outputs for motor connections.

Motors

• DC Motor: A simple electric motor that is driven by DC power supplied by the motor drivers

Sensors

• IR Sensor: An infrared sensor used for detecting obstacles or receiving signals based on IR light

Power Supply

• Li-ion 18650 Battery: A rechargeable battery providing the power required for the motors and the entire circuit.

Power Supply

• Li-ion 18650 Battery: A rechargeable battery providing the power required for the motors and the entire circuit.

Wiring Details:

Arduino UNO

• D3 connected to IR Sensor (out)
• D2 connected to IR Sensor (out)
• D4 connected to L298N Motor Driver (IN4)
• D7 connected to L298N Motor Driver (IN1)
• D8 connected to L298N Motor Driver (IN4)
• D11 connected to L298N Motor Driver (IN1)
• D9 connected to L298N Motor Driver (IN3)
• D10 connected to L298N Motor Driver (IN2)
• D6 connected to L298N Motor Driver (IN2)
• D5 connected to L298N Motor Driver (IN3)
• 5V Pin connected to L298N Motor Driver (5V) and IR Sensor (Vcc)
• GND connected to IR Sensor (GND)

L298N DC Motor Driver

• 12V Pin connected to Li-ion 18650 Battery (+)
• GND Pin connected to Li-ion 18650 Battery (-)
• IN1, IN2, IN3, IN4 connected to to Arduino UNO (D7, D6, D5, D4 respectively for one driver and D11, D10, D9, D8 for the other)
• OUT1, OUT2, OUT3, OUT4 Pins connected to DC Motors

DC Motors

• Each motor connected to a pair of OUT pins on the L298N Motor Driver

IR Sensors

• Out Pin connected to Arduino UNO (D3, D2)
• Vcc Pin connected to 5V from Arduino UNO
• GND Pin connected to GND from Arduino UNO

Li-ion 18650 Batteries

• Batteries connected in series to provide the required voltage for the motor drivers

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Summary of the Circuit:

This circuit is designed to control two DC motors using an Arduino UNO microcontroller and an L298N DC motor driver. It also includes a SparkFun Soil Moisture Sensor to monitor soil moisture levels. The power supply for the motor driver and the Arduino is provided by a series connection of three Li-ion 18650 batteries. The Arduino UNO is responsible for controlling the motor driver inputs to regulate the speed and direction of the motors.

Component List:

Microcontroller

• Arduino UNO: A microcontroller board based on the ATmega328P. It has digital input/output pins, analog inputs, a USB connection for programming, and power management features

Motors

• DC Motor: A simple electric motor that is driven by DC power supplied by the motor drivers

Motor Drivers

• L298N DC Motor Driver: A high-power motor driver capable of driving up to two DC motors. It has inputs for motor control signals and outputs for motor connections.

Power Supply

• Li-ion 18650 Battery: A rechargeable battery providing the power required for the motors and the entire circuit.

Sensor

• SparkFun Soil Moisture Sensor: A simple breakout for measuring the moisture in soil and similar materials. It has three pins: VCC, GND, and SIG.

Wiring Details:

Arduino UNO

• 5V connected to L298N 5V and SparkFun Soil Moisture Sensor VCC
• GND connected to SparkFun Soil Moisture Sensor GND
• A0 connected to SparkFun Soil Moisture Sensor SIG
• D8 connected to L298N IN4
• D9 connected to L298N IN3
• D10 connected to L298N IN2
• D11 connected to L298N IN1

DC Motor #1

• Pin 1 connected to L298N OUT2
• Pin 2 connected to L298N OUT1

DC Motor #2

• Pin 1 connected to L298N OUT4
• Pin 2 connected to L298N OUT3

L298N DC Motor Driver

• 5V Pin connected to Arduino UNO 5V
• 12V Pin connected to Li-ion 18650 Battery (+)
• GND Pin connected to Li-ion 18650 Battery (-)
• IN1, IN2, IN3, IN4 connected to to Arduino UNO (D7, D6, D5, D4 respectively for one driver and D11, D10, D9, D8 for the other)
• OUT1, OUT2, OUT3, OUT4 Pins connected to DC Motor#1 pins and Motor#2 pins respectively

Li-ion 18650 Batteries

• Batteries connected in series to provide the required voltage for the motor drivers

SparkFun Soil Moisture Sensor

• Vcc connected to Arduino UNO 5V
• GND connected to Arduino UNO GND
• SIG connected to Arduino UNO A0

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Summary of the Circuit:

This circuit is designed to control a bulb using a 1 Channel 5V Relay Module, which is in turn controlled by an Arduino UNO microcontroller. The relay module allows the Arduino to switch the high-power circuit of the bulb on and off. The bulb is connected to a socket that provides the power needed for illumination. The Arduino UNO is programmed to send control signals to the relay module, which then opens or closes the circuit to the bulb.

Component List:

Microcontroller

• Arduino UNO: A microcontroller board based on the ATmega328P. It has digital input/output pins, analog inputs, a USB connection for programming, and power management features

Socket

• A device that provides electrical connections to the bulb

Bulb

• An electric light source. It has two terminals; Positive, Negative

1 Channel 5V Relay Module

• Description: A relay module that can be used to control high power devices
• Pins: VCC+, VCC- (GND), IN, N.O., COM, N.C

Wiring Details:

1 Channel 5V Relay Module

• VCC+ connected to Arduino UNO 5V
• VCC- (GND) connected to Arduino UNO GND
• IN connected by Arduino UNO D8
• N.O. connected to the negative pin of the bulb
• COM connected to the positive pin of the socket

Bulb

• Positive connected to the negative pin of the socket
• Negative connected to the N.O. pin of the relay module

Socket

• Positive connected to the COM pin of the relay module
• Negative connected to the positive pin of the bulb

Arduino Uno

• D8 sends control signals to the IN pin of the relay module
• 12V Pin provides power to the VCC+ of the relay module
• GND Pin with the VCC- (GND) of the relay module

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Summary of the Circuit:

This circuit integrates an Arduino UNO microcontroller with a Tower Pro SG90 servo motor. The Arduino UNO is responsible for controlling the servo motor by sending PWM (Pulse Width Modulation) signals through one of its digital pins. The servo motor is powered by the 5V supply from the Arduino and shares a common ground. This setup is typically used in applications requiring precise control of motion, such as in robotics or automated systems.

Component List:

Microcontroller

• Arduino UNO: A microcontroller board based on the ATmega328P. It has digital input/output pins, analog inputs, a USB connection for programming, and power management features. It acts as the main controller for the circuit, providing logic and power to the servo motor.

Servo Motor

• Tower Pro SG90 Servo A small and lightweight servo motor suitable for projects that require simple motion. It receives PWM signals from the Arduino to set the position of the servo arm.

Wiring Details:

Arduino UNO

• 5V : Provides power to the servo motor. For larger circuits it is advised to power the motor using an external power source
• GND : Common ground with the servo motor.
• D9 : Outputs PWM signal to control the servo motor.

Tower Pro SG90 Servo

• Signal : Receives PWM signal from Arduino UNO's D9 pin
• +5V Connected to the 5V output from the Arduino UNO
• GND Shares a common ground with the Arduino UNO

Code Description: This is the initial template for the Arduino sketch. The setup() function is called once when the program starts and is used to initialize the settings. The loop() function is called repeatedly and contains the main logic to control the servo motor. Currently, the code is a placeholder and needs to be filled with the logic to generate PWM signals on pin D9 to control the servo motor's position.

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