Bluetooth Car (ATtiny2313) controlled with Android phone

Just a little demo of my latest cell phone app for bluetooth control. This is on an HTC Hero running VillainROM 10.0. The RC car is modded and uses an ATtiny2313 and a 20$ bluetooth module. See my website for details.

http://uzzors2k.4hv.org/index.php?page=blucar

Category:

Science & Technology

Tags:

• Bluetooth
• Car
• AVR
• ATtiny2313
• Android
• uzzors2k

[akshaydusane]

hello I am using 89v51rd2 and I am interested making similar project....

For this i have a plan to use USB bluetooth module at robo car side..

so for this I want to know that how should i connect USB bluetooth to serial port on car side.....

[Uzzors2k]

@akshaydusane That's quite tricky to do, would require that you write a driver for your USB dongle. I told someone else recently that another approach is to buy a bluetooth headset, and send commands via DTMF.

[akshaydusane]

@Uzzors2k but I am connecting dongle to CAR's end for that why drivers are necessary ?? I just referred to others sites to study this project...

from that i concluded that we hv to jst connect tx and rx pin of dongle to controller

correct me if i am wrong sir ??

[Uzzors2k]

@akshaydusane Because USB dongles don't have RX and TX pins, just data +/-. You'll need to establish a USB connection with the dongle to use it (V-USB or similar), and then know which commands to send back and forth (drivers).

[MmardeCcopas]

Hello, I'm very interested in to use an Attiny2313 microcontroller with RN41 bluetooth but i don know how to do the connection :( ... I'm a beginner and I program only in assembly language, you code in the attiny is in C ???.

The big favor is could you tell me how I can to realize the connections and communications please ??

[Uzzors2k]

@MmardeCcopas You'll have to program the ATtiny2313 to use the UART hardware module, and handle Rx data received interrupts. Each data byte you receive from the bluetooth module contains all the information needed to determine what state the Android controller is in. I haven't programmed in assembly since learning C, so I can't help you with the programming aspect. Take a look at the C source code, and I'm sure you'll understand how the program functions.

[Uzzors2k]

@tchechno30 It would if someone made an iphone app for it, which I won't be doing. Unlike for Android, becoming an iphone developer is costly and requires a Mac computer. Bleh.

[akshaydusane]

@Uzzors2k I was trying to work with usb module i gave power to USB bluetooth module and when i am searching it from PC its not detecting why is it so ??

[MmardeCcopas]

Hello, I'm very interested in to use an Attiny2313 microcontroller with RN41 bluetooth but i don know how to do the connection :( ... I'm a beginner and I program only in assembly language, you code in the attiny is in C ???.

The big favor is could you tell me how I can to realize the connections and communications please ??

[Uzzors2k]

@dvigeant Certainly, you would just need to write a program to accept bluetooth commands in your RC car/computer. The Android app simply sends left/right/forward/reverse/etc over bluetooth, so what your bluetooth enabled device does based on the commands is entirely up to you.

[dvigeant]

Very nice. Would this layout work with a RC that already has front servo for left right control? Also, will program still work if only interested in directional and not the lights and such? I am doing a computer mod build inside the body of the RC and want to add bluetooth control ability to it with my Droid. I don't know the RC's size ratio but its 27" long by 12" wide.

[ROBZLABZ]

what program you use?

[ixdjxl]

haha hella cool

[robwasab]

THIS IS AWESOME, your the man! using the 2313! screw arduino! BEAST!

[Uzzors2k]

@jcap623 Perhaps, but then I doubt you would be able to upload your app to the market, or install it on a non-jailbroken phone. Either way, I don't have an iPhone, so I'm not making an app for it. :-)

[jcap623]

@Uzzors2k i'm no mac fanboy, but I know you can develop in windows as well, maybe not using the same sdk.

[Uzzors2k]

@jcap623 I checked just now, and the requirements are the same. In addition to 99USD per year just for a developers license, the following is required. And I quote: "You must have an Intel-based Mac running Mac OS X Snow Leopard to develop Mac OS X and iOS apps for the App Store."

[jcap623]

@Uzzors2k I dont think thats the case anymore

[Uzzors2k]

@98568045 Nope, the bluetooth module I used was supplied ready to use.

[98568045]

Bro Uzzors2k, I installed your app. I just want to ask you, did you have to program the bluetooth module to interface with the ATtiny2313?

[98568045]

thanks bro

[Uzzors2k]

@98568045 Just search for BluCar on the market.

[98568045]

@Uzzors2k under which category bro? If possible can you help me provide link? Thanks bro

[Uzzors2k]

@98568045 I've exceeded my monthly bandwidth allowance so I can't look into it right now. I do have the application itself on the Android market though, so you can download it there.

[98568045]

Bro Uzzors2k last time I tried download the file you provided. but now i can't download anymore. I might deleted as well. Can you help me upload the file again?

[GLENNTACAN]

hey guys, what programming language are you using for this project?

we are planning to make like this one for our project design.

can anyone explain me about this?