Java phone as remote-control?

[s.frings]

Hi, I never wrote Java programs for mobile phones. But want to try that. Using my phone to remotely control a car built with Lego Mindstroms parts is my first idea.
Is that possible? Is somewhere an example that I could checkout?

[lawrie]

What sort of phone do you have?

For Symbian phones, such as Nokia phones, there are j2mecomms and j2mesamples projects in svn. I have the samples running on Nokia phones, but have not build them for a year or two, so they could have problems. I built them in Eclipse with the JME plugin, but again it was a while ago, and things have move on, so the project files might need some work on them. One of the samples allows you to drive a robot around.

For Android phones, there is the Lejos-Droid project in svn.

[jimmylucas88]

Hi, I never wrote Java programs for mobile phones. But want to try that. Using my phone to remotely control a car built with Lego Mindstroms parts is my first idea.
Is that possible? Is somewhere an example that I could checkout?

I think it would be possible, considering I have seen the remote controlled helicopters that are flown with an iphone. You may be able to disassemble one of those helicopters and use the parts in a lego car. That is where I would start at least! I recently built my own version of a magicJack Plus, and have been working on a way to rig it using a remote so I can have access to a wireless phone. It is super fun to build things like this!

[daavidfischer]

I am not sure if Java platform can process such huge programs. This is because the phones that run on Java have particularly low memory and processor speed; so it greatly depends on which phone you are using. Java platform is not widely used nowadays so there are not many projects under development, you may consider building an app using Android.


David Fischer

[Aqualuna]

I also would love to use the brick just to communicate with the robot parts, but use a phone to do all the computation and also integrate data from camera, gps, gyro and accelerometers. Basically make the phone control the robot.