The Arduino 9-in-1 Sensor Expansion Board is a versatile all-in-one shield designed for beginners and hobbyists to explore a variety of sensor and module experiments. It integrates nine essential modules including temperature, humidity, brightness, LEDs, buzzer, buttons, infrared receiver, rotary potentiometer, and more. Fully compatible with Arduino UNO R3, the board allows easy plug-and-play experimentation without welding or complex wiring. It provides all necessary libraries and sample codes, making it ideal for educational projects, prototyping, and interactive electronics applications in Bangladesh.

Features:

• Nine modules integrated into a single expansion board

• DHT11 temperature and humidity sensor for environmental monitoring

• LM35D temperature sensor module for precise temperature measurement

• Passive buzzer for sound alerts and notifications

• Full color LED module for visual effects

• 2-way LED module for status indication

• 2-way button module for input control

• Brightness sensor module for light intensity detection

• Infrared receiver module for IR remote experiments

• Rotary potentiometer module for analog input control

• Plug-and-play design, no welding required

• Fully compatible with Arduino UNO R3 interface

• Expansion ports available for additional modules

• High row pin design to prevent USB port contact and short circuits

• Pre-tested libraries and sample codes included

Specifications:

• 2-way button module

• 2-way LED module

• Full color LED module

• IR receiver module

• Brightness sensor module

• LM35D temperature sensor module

• Passive buzzer module

• Rotary potentiometer module

• DHT11 temperature and humidity sensor module

• One I2C interface: A4 (SDA), A5 (SCL)

• One TTL serial port

• Two digital channels: D7, D8

• One analog channel: A3

• Reset button included

• Compatible with Arduino UNO R3

Applications:

• Arduino beginner experiments and tutorials

• Environmental monitoring projects (temperature, humidity, light)

• Home automation prototypes

• Robotics and interactive electronics projects

• Alarm and notification systems using buzzer and LEDs

• IR remote control learning projects

• DIY electronic education kits

• Analog and digital signal experimentation

• Educational STEM projects for schools and universities

How to Use:

• Plug the expansion board directly into Arduino UNO R3

• Open Arduino IDE and load provided example codes

• Use the respective modules for experiments (DHT11 for humidity, LM35 for temperature, buzzer for sound, LEDs for visual output)

• Read analog values from potentiometer or brightness sensor modules

• Use digital inputs from buttons and IR receiver

• Access I2C or TTL interfaces for advanced communication experiments

Installation & Usage Instructions:

• Ensure proper alignment with Arduino UNO pins before powering

• Avoid contact between expansion board and USB port to prevent short circuits

• Download and include all provided libraries for immediate use

• Modules are pre-wired, no soldering required

• Expansion ports can be used to connect additional sensors or modules

• Suitable for both beginner learning and advanced prototyping

Package Includes:

• 1 x Arduino 9-in-1 Sensor Expansion Board (DHT11, LM35, Buzzer, LEDs, Buttons, IR Receiver, Potentiometer, Brightness Sensor)

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