Steerable bristlebot via IR control

Looking at the size of this bristlebot the first thing we wondered is where’s the battery? All we know is that it’s a rechargeable NiMH and it must be hiding under that tiny circuit board. But [Naghi Sotoudeh] didn’t just build a mindless device that jiggles its way across a table. This vibrating robot is controllable with an infrared remote control. It uses an ATtiny45 microcontroller to monitor an IR receiver for user input. An RC5 compatible television remote control lets you send commands, driving the tiny form factor in more ways than we thought possible. Check out the video after the break to see how well the two vibrating motors work at propelling the device. They’re driven using a PWM signal with makes for better control, but it doesn’t look like there’s any protection circuitry which raises concern for the longevity of the uC.

This build was featured in a larger post over at Hizook which details the history of vibrating robots. It’s not technically a bristlebot since it doesn’t ride on top of a brush, but the concept is the same. You could give your miniature fabrication skills a try in order to replicate this, or you can build a much larger version that is also steerable.

Comments

  1. Nova says:

    I’m fairly certain that the ‘bot it sitting on-top of its battery and there aren’t any bristles actually beneath it. So it’s really more of a “sans bristle bot”.

  2. Spork says:

    Very cool little bot. Seems like he can only rotate left/right and move forward, but I love the small simple build.

    Also props for using a regular remote control, THAT is a cool hack to make use of the old remotes laying around.

  3. pahosler says:

    reminds a little of kilobot…

    [youtube http://www.youtube.com/watch?v=ISMwLCFwgK4&w=560&h=315%5D

  4. mic says:

    I saw bristle bots at my local dollar store a while back.

  5. gdogg says:

    pretty cool. I have wanted to make something like this for a while. IR control using a standard TV remote would be cool, too.

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