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Editorial Team
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Asked: 2026-06-05T05:09:29+00:00

The project objective is something like this: We would have a locomotive robot having

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The project objective is something like this:

We would have a locomotive robot having on-board GPS on it.
Now using that GPS we want to track the position of robot and trace it on android cellphone.
(as they provide best interface with Google services)

Not only that

We even want to control the robot from android cellphone.
Is it possible to send control signal from android cellphone to that robot so that robot can make a move according to control signal.

How can we make a connection between android cellphone and on-board GPS of robot.
(We are somewhat newbie to robotics)

Any better ideas, suggestions are most welcome.

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1 Answer

  1. Editorial Team

    Check out Dension Wirc module:

    WiRC module by Dension
    It works for RC controlled platforms by sending a pulse width modulated train, allowing you to control servos and electronic speed controllers. There are 8 channels. I’m using it to control 2 tracks and a pan/tilt turret, it works great. I emailed the support team, and they sent me an iPhone project, which got me running in a matter of hours. The WiRC kit comes with a camera, so I can drive my robot remotely via wifi.

    In terms of GPS, I did a test on iPhone, under clear sky, and the GPS signal drifts badly. The accuracy is indeed somewhere between 30-50 feet, it is not enough to track position of a small robot precisely. I will post a screenshot of my experiment.

    Check out this screenshot: I’m walking along the white paths on the map with the phone in my shirt pocket. Every second it places a pin on the map. You can see how badly the red pins deviate from the white path. This is 30-50 feet off path. For a 2 feet long robot, this is a major trouble. If it tries to correct it’s path with such resolution of GPS, it is likely to become very confused.
    GPS experiment

    I’ve seen a differential drive equation on wikipedia (a motor with slit encoders), counting the number of slits that passed past encoder in a certain interval of time. This may help correct the GPS, but requires additional hardware

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