• Breadboard wiring and electronics skills.
  • Arduno Uno.
  • HC-05 Bluetooth serial module.


ArduDroid (formerly Andruino) is a simple tool to help you control your Arduino (or clone) from your Android phone. It's both an Android app and an Arduino program. ArduDroid has a simple Android user interface to 1) control Arduino's digital and PWM pins 2) send text commands to Arduino 3) and receive data from Arduino over Bluetooth serial using the ever popular and really cheap (less than $10 from ebay) HC-05 Bluetooth over serial module. This app has been tested and designed for the HC-05 Serial Bluetooth module. Other Bluetooth modules may or may not work. Please see comments section for users who tried other Bluetooth modules with this app.


ArduDroid should work with other Bluetooth modules with some tweaking but I have only tested it with the HC-05. This is an alpha version that's running fine on my Samsung Galaxy S2 Plus. Please share your experience running ArduDroid on your phone. Also, while I used Arduino Uno in this prototype, feel free to experiment with other models of Arduino. Please share your experience to help me improve this app.

I have published a guide before on building and programming a circuit with the HC-05 Bluetooth module and Arduino but I will briefly describe again in this guide how to wire the circuit using a breadboard and jumper wires.

ArduDroid is an app that evolved during one of my development projects. Special thanks to engineer Jafar Quttaineh for testing the app and for his invaluable input.

Step 1: How to use ArduDroid

You can use ArduDroid to send commands to Arduino to control a relay to turn electric gadgets on/off, control a robot servo, increase/decrease speed of a motor and reverse direction, dim a light, speed up a fan, and so on.  Furthermore, you can read Arduino pins and sensors then transmit the data back to your android phone.

<p>could you please send me the source code of the android app at</p><p>walaanaser.wn@gmail.com</p>
<p>Could you please send me the source code of the android app at ngocdangaaa15@gmail.com . </p>
<p>Thank you for sharing this!</p><p>I have an Android phone version 4.0.4 and ArduDroid won't let me connect to my HC-06. I installed a BT terminal app (by Alexander Vozjennikov) and this could connect! Another BT terminal app (by Qwerty) could only connect by using the secure connection option. Hope this helps ...</p>
<p>I want some source code too. Please contact me at arm_kntjnd@hotmail.com. Please, I need your help!!</p>
<p>Could you please send me the source code of the android app at joyceaiman@ymail.com. Amazing project by the way.</p>
<p>I Made it!</p>
<p>Thank you for all your effort that you put into all this. Its wonderfull!</p><p>Could you please send me the source code for the Android app to <br>ephrama@yahoo.com</p>
<p>Uno, HC-05 and Ardudroid all linked up perfectly thank you. Any chance one of you guys can help with some code or tips for adding servos using the Adafruit 16-channel, 12 bit module? Am VERY new to this. Many thanks</p><p>noo_yorka@hotmail.com</p>
<p>Thank for making this useful project.You can see my work from the link below.</p><p><a href="http://www.instructables.com/id/SMART-POWER-OUTLET/" rel="nofollow">http://www.instructables.com/id/SMART-POWER-OUTLET/</a></p>
<p>THANK YOU!</p><p>Was nice to make this program, and it work like a charm!</p><p>Just to play i've added a servo and a temperature sensor TMP36.</p><p>And now i can control leds, servo, and read temperature sensor from my Android phone! :))</p><p>I'm so happy about it! :D</p><p>I've got only one problem: </p><p>Sometimes i can't read the temperature sensor.</p><p>When i press the button &quot;Get Data&quot; on Ardudroid, i get the read only sometimes and not every the time i press it.</p><p>If i use:</p><p>Serial.print(&quot; Analog 0 = &quot;);</p><p> Serial.println(analogRead(A0)); </p><p>It works perfectly, and i get the read every time i clik on &quot;Get Data&quot;.</p><p>But in my code, i have to make some calculation to get temperature value.</p><p>My code to read temperature is:</p><p>float volts=(analogRead(A0)/1024.0)*5;</p><p> float temperature=(volts-0.5)*100;</p><p> Serial.print(&quot; Degrees C: = &quot;); </p><p> Serial.println(temperature);</p><p>With this code i can NOT get the read every time i click &quot;Get Data&quot;.</p><p>Sometimes yes and sometimes not.</p><p>I don't know why... Any help?</p><p>Thank you! :)</p>
<p>please send me source code for android app.</p><p>my email : priatnajumsa@gmail.com</p><p>thank you</p>
I need this entire project pdf please send to my mail sivakumar31may@gmail.com
<p>You think is possible to send the source android code? My email stamosabatis@gmail.com.</p><p>Thank you in andvance</p>
<p>Hi, it pairs but the app does not do anything, neither lights come on. I've tried pulling the bluetooth module out then uploading before reconnecting but this does nothing. Any ideas?</p>
<p>change the serial rate in the sketch to 115200, that was my problem.</p>
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<p>Great one!</p>
<p>Hi</p><p>Could I have a copy of your android app source code too please.</p><p>I love your app and I am itching to modify it to control eight servos...</p><p>I have managed a couple of simple android apps so far but a full blown Blutooth app from scratch is beyond my skills at the moment.</p><p>My email is <a href="mailto:bitbasherdpg@gmail.com" rel="nofollow">bitbasherdpg@gmail.com</a></p><p>Thanks.</p>
<p>Hi, can you please share your android source code. i would like to modify and use this to open and close the garage. Thank you very mush for sharing your project, it is very useful. my email address is cgumede@gmail.com</p>
<p>Could you please send me the source code for the Android app to <br>shayei.ali@gmail.com</p>
<p>smh.hashemi1@gmail.com</p><p>please send me the Android source code:</p><p>thank you very much</p>
hi could you please send me the source code for the android app, thanks! I want to make an app for school and i am a beginner, it would be very nice! <br>vera@vondaten.de
<p>Hello,<br> am working for a few days with the app. Unfortunately I can not connect to the HC-06 because is not available on my Samsung S5 the Connect button. Can you help me<br> many Greetings<br> swhobby@t-online.de</p>
<p>Hi could you please send me the source code for the Android App, thanks!</p><p>rferruses@gmail.com</p>
<p>Hi could you please send me the source code for the Android App: mydocbak.bb@gmail.com. Very appreciated!</p>
<p>Hi, could you send me the source code for the Android App </p><p>sacosta93@hotmail.com thanks </p>
Could you please send me the source codes, thanks in advance <br>mail:gabo.padilla@gmail.com
<p>Could you please send me the source code for the Android app to <br>gereksizadresi@hotmail.com</p>
<p>I got things working after a bit of tinkering with the code. I actually have 2 arduino mega2560's running with just one bluetooth module you just have the first one sending the parsed integers seperated with the expected characters inbetween, but now I just want to figure out the android side of things to make a few modifications to the app, to make it fit exactly for what I need. like certain pins doing pwm and expanding it to account for the extras from my second board, if you could send me the source code and clue me in on how to adjust the user interface and how it connects I would be most appreciative. JeffMODell@me.com</p>
<p>I am learning android programming, you can give me a reference code android. Who has the code for me please. Thank you very much.</p><p>My email: nilgiang.electronic91@gmail.com</p>
<p>I am learning android programming, you can give me a reference code android. Who has the code for me please. Thank you very much.<br>MyEmail: nilgiang.electronic91@gmail.com</p>
<p>Hi, could you send me the source code for the Android App as i have no experience at writing phone code, i'm using a Microchip PIC 18F as the microcontroller and have written plenty of code for that end... Cheers drloakes@gmail.com</p>
<p>Can you please send me the ardudroid source code to ashmisvm2.3@gmail.com?</p>
<p>I have little experience with arduino. Can someone please help me with bluetooth sending and receiving android code. I am little stuck with my project. Mail me any sources if you have to bgganesh93@gmail.com. Thanks in advance.</p>
<p>Great - it took me 20 minutes to switch a LED on a arduino nano (with software-serial) - and im a total newbee!!!!!</p><p>Manymany thanks...</p>
<p>somebody HElp me. I am done with the 9Steps, But still my project not working. Thanks a lot</p>
<p>Load sketch with HC-05 removed.</p>
<p>hc-05 connects but it did work properly</p>
<p>See my comment regarding loading the sketch... The HC-05 must be removed before uploading the sketch..</p>
<p>A cautionary note... If using a Uno, you must upload the sketch BEFORE plugging in the HC-05. If not, the program appears to load and the system &quot;pairs&quot; but no data can be transferred to the module. </p><p>It is great little sketch!</p>
<p>If you could please send me the source code for the android app that would be wonderful. ryankoch35@gmail.com</p><p>thanks!</p>
<p>hey could you please send me the source code of this ArduDroid app.I would be very grateful to you.My Id is &quot; harrycage@gmail.com &quot;.</p>
<p>dear tech bitar i am working on project to operate 4 channel relay via bluetooth.</p><p>can i just upload your programming sketch (ardudroid.ino) to arduino so it will work ??</p><p>or i need to edit anything in it.</p>
<p>super easy to setup together , and the guide is even good for absolute beginners!! thanks a lot Techbitar !! </p>
<p>super easy to setup together , and the guide is even good for absolute beginners!! thanks a lot Techbitar !! </p>
<p>Hello Techbitar,<br>Back from the future?... In chapter Updates, le first line in: Nov 19. 2031: OPINION<br>Please describe your &quot;own time machine&quot; in a new instructables; thanks a lot! ;)</p>
<p> helpful article ! could u plz send me the source code of android app ?(mail id:gade7443@gmail.com)</p><p>how to connect Bluetooth Transceiver Module with TTL Outputs-HC05 with mobile through android application to send n receive data from arduino ? </p><p>we want to build android app which should work automatically on the basis of arduino o/p. We are stuck at the connection between arduino and application.What are commands tht t add in android app? plz help me with this</p>

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