Schlagwort: Remote Controlled Car

  • This robot car accepts voice commands or operates autonomously

    This robot car accepts voice commands or operates autonomously

    Reading Time: 2 minutes

    The fantastic thing about Arduino boards and maker hardware as a whole is that they make creativity accessible. Just a few decades ago, it would take serious expertise and a generous budget to build even a simple robot. But with the technology available today, Parikshit Pagare was able to create this robot car that can be controlled manually, by voice, or operate autonomously.

    Pagare started with the kind of RC car that you can find at any toy store or online retailer. That provided a platform to build upon, with a frame, wheels, and motors. But the original RC control was very rudimentary, which is why he replaced all of the electronics. The upgraded vehicle has an Arduino Uno that controls the two DC motors through L298N motor drivers. An HC-05 modules allows for Bluetooth® communication with a smartphone and an ultrasonic sensor mounted on a servo arm provides some feedback.

    A custom app, developed with the MIT App Inventor platform, enables the different control modes. The manual mode lets the user operate the vehicle directly, just like the original RC control. The voice mode lets the user speak commands like “move forward.” Before following such commands, the robot checks the ultrasonic sensor to ensure that there isn’t an obstacle in the way. In autonomous mode, the robot will perform its own pathfinding with the help of the ultrasonic sensor, similar to a Roomba.

    [youtube https://www.youtube.com/watch?v=4jAYXDv8F4I?feature=oembed&w=500&h=281]

    The post This robot car accepts voice commands or operates autonomously appeared first on Arduino Blog.

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  • A remote-controlled Arduino Nerf tank

    A remote-controlled Arduino Nerf tank

    Reading Time: 2 minutes

    Arduino Team — May 31st, 2021

    Arduino Nerf Tank

    Makers love Nerf guns, but Nathan Li takes foam-based home security to a new level with his mini Nerf tank. Naturally there’s an Arduino Uno in there, powering the mobile dart launcher.

    Scruffy lookin’ Nerf tank herder

    This miniature roving robot, known as M.A.T. (Modular Arduino Tank), is beautifully built. Not only is it remarkably accurate, but the dart launching mechanism is a triumph of non-lethal weapon design.

    Unlike the majority of Nerf mods out there, this tank doesn’t actually use any parts from a toy gun. Attached to the front of the dart turret is a pair of flywheel motors. These spin the flywheels in opposite directions, at a pretty fast rate. An arm mounted on a servo feeds a dart into the flywheels, which propel it at an impressive lick!

    The next dart is gravity fed, and simply falls into place, making it quite a rapid firing micro tank.

    Testing the tank

    Li takes his tank through a series of batteries, all of which show impressive results. Accuracy is spot on, which isn’t easy with notoriously unreliable Nerf darts. A five-foot muzzle velocity test achieves a whopping 35MPH dart speed. The distance test sends foam projectiles an impressive 44 feet.

    Then there’s a demonstration of some excellent grouping in the accuracy test.

    It’s sparked up a whole conversation over on Reddit about how the firing mechanism can be modified. The flywheel thrower operates much like baseball launchers (and this dog toy, for example), which has really captured the maker community’s imagination. Shooting dried peas seems to be a popular idea. As does the idea of building in object detection for pest control.

    The maker has shared his Arduino code on GitHub. You can also find the 3D print files and a build guide on Li’s website.

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  • Driving a mini RC bumper car with a Nintendo Wii Balance Board

    Driving a mini RC bumper car with a Nintendo Wii Balance Board

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    Driving a mini RC bumper car with a Nintendo Wii Balance Board

    Arduino Team — October 23rd, 2020

    Taking inspiration from Colin Furze’s 600cc bumper car constructed a few years ago, Henry Forsyth decided to build his own RC miniature version. His device features a 3D-printed and nicely-painted body, along with a laser-cut chassis that holds the electrical components.

    The vehicle is driven by a single gearmotor and a pair of 3D-printed wheels, with another caster-style wheel that’s turned left and right by a servo steering. An Arduino Uno and Bluetooth shield are used for overall control with a motor driver.

    The Bluetooth functionality allows for user interface via a PS4 controller, or even (after a bit of programming) a Wii Balance Board. In the end, the PS4 remote seems to be the better control option, but who knows where else this type of balance technique could be employed?

    [youtube https://www.youtube.com/watch?v=JfjPqZ6sY9s?feature=oembed&w=500&h=281]

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