Introduction: Arduino, LED & Bluetooth

Download our FREE Arduino Project Code

Arduino Uno
Bluetooth module

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Step 1: Build the Circuit

Construct the circuit as shown.
Make sure all components and jumper wires in the correct position.

Step 2: Build the Circuit With Bluetooth Module

Once the (4) LEDs are working, add the Bluetooth module to the circuit.

Step 3: Smart Home With Voice Command App

Download & Install "Smart Home with Voice command" app to test your LED.
Google PlayStore.

Step 4: Test Your Project