Schlagwort: Mobile Robot

  • This remote-controlled, highly mobile robot features a 4DOF arm and an onboard camera

    This remote-controlled, highly mobile robot features a 4DOF arm and an onboard camera

    Reading Time: 2 minutes

    Static manipulators and mobile robot chassis each have their own advantages, and so by combining the two into a single platform, AadhunikLabs was able to realize both at the same time. The base frame is comprised of four individual wheels, each with their own high-torque geared motor and driven by a pair of VNH3ASP30 DC motor driver boards. All of the arm’s axes are moved via a single high-torque metal servo motor that not only can support its own weight, but also the weight of an object being picked up by the gripper on the end.

    Beyond controlling the geared DC and servo motors, an onboard Arduino Nano RP2040 Connect receives commands over Wi-Fi® from a host PC running the control software. In here, the user can view a live camera feed coming from an ESP32 camera module as well as virtually view the robotic arm’s position in 3D space. Similar to a video game, pressing keyboard keys such as ‘WASD’ and sliding the mouse provide general movements for the chassis and arm, respectively. Meanwhile, other keys allow for manipulating the end-effector, moving the arm to default positions, and adjusting the speed.

    To see this project in more detail, you can check out AadhunikLabs’ write-up on the Arduino Project Hub and watch its demo video below.

    [youtube https://www.youtube.com/watch?v=iE2HxXjoqeM?feature=oembed&w=500&h=281]

    The post This remote-controlled, highly mobile robot features a 4DOF arm and an onboard camera appeared first on Arduino Blog.

    Website: LINK

  • James Bruton’s robot uses three ball-shaped wheels to move in any direction

    James Bruton’s robot uses three ball-shaped wheels to move in any direction

    Reading Time: 2 minutes

    James Bruton’s robot uses three ball-shaped wheels to move in any direction

    Arduino Team — June 5th, 2021

    Wheeled robots normally have wheels that move in a single axis and steer by using either differential speeds or by pivoting some kind of guide wheel. However, this leads to some drawbacks, the most obvious being an inability to move in really tight spaces. When presented with this challenge, YouTuber James Bruton came up with a great design for a highly mobile robot platform that employs a novel setup to move in any direction. Inspired by the work of researchers at Osaka University in Japan, the omni wheel uses a single drive shaft to spin, yet nearly every surface has a way to move along the ground. 

    After designing his robot in Fusion 360 and 3D printing each part, Bruton assembled the wheels and added a pulley to each drive shaft which could be spun by a motor sitting directly above. An Arduino Mega is tasked with controlling each of the three BTS7960 motor drivers and it receives commands via an nRF24L01 radio module. All of the drive components are powered by a single 3-cell LiPo battery pack, while the main board is supplied current by a USB battery bank. 

    By spinning certain wheels at the correct speed, straight line motion can be produced, as shown in the video below. Bruton tested his robot by driving over carpet, tile, aluminum extrusions, and even a plastic lid, which did very well across everything except the lid. This robot has countless potential uses, such as a garbage collection device for around the house. 

    [youtube https://www.youtube.com/watch?v=zKLMCO0-How?feature=oembed&w=500&h=281]

    Code and design files for the project are available on GitHub.

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    Website: LINK