Arduino - Control DC Motor Via Bluetooth : 4 Steps (with Pictures)

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Introduction: Arduino - Control DC Motor Via Bluetooth

RuiSantosBy RuiSantosVisit RandomNerdTutorials.com »Follow More by the author: ESP8266 Web Server (Without Arduino)Arduino Simple Memory GameArduino – Datalogger with Temperature Sensor and Photoresistor About: Author, Blogger, Electronics Enthusiast and Entrepreneur. For complete Electronics Projects and Tutorials go to: https://RandomNerdTutorials.com More About RuiSantos » Hi guys, In this project we will control a DC motor with a smartphone via bluetooth. This project is great to learn more about: -DC motor -Interfacing Arduino with your smartphone -Bluetooth module -L293Dyou can visit my website for more electronic projects, interesting news and tips.Check this video to see it working

Step 1: Parts Required

1x Arduino Uno 1x Bluetooth Module (for example: HC-05) 1x Smartphone (any Android will work) BlueTerm application 1x L293D IC 1x DC motor 1x Breadboard Jumper Cables

Step 2: Schematics and Common Mistakes

Two common mistakes: -You need to remove the RX and TX cables when you’re uploading the sketch to your Arduino. -Sometimes people connect the TX from the bluetooth module to the TX of the Arduino… that’s wrong and it won’t work. Make sure you connect it properly, the TX into RX and the RX into the TX.Note: If the HC-05 Bluetooth Module asks for a password, It's '1234'.

Step 3: Arduino Code

For the android communication with our bluetooth module I’ve used the BlueTerm app, It’s completely free, so you just need to go to “Play store” and download it. Then you just need to connect your smarthphone with the bluetooth module. Remember to remove the TX and RX cables. (you can see in youtube video below how that’s done).

Step 4: Final Product

I’ve only set 3 commands to control the DC motor: ’0′ – Turns off the DC motor ’1′ – DC motor rotates to right ’2′ – DC motor rotates to left Check this video to see the circuit in action!you can visit my website for more electronic projects, interesting news and tips:Hide

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