About HUB-ee Wheels
The HUB-ee is a type of robot servo but designed for wheels, in fact it is a wheel, but it is also a motor, a sensor and a motor controller.
When you want to add wheels to your robot you would normally start with a whole collection of parts: The motor and gearbox, a motor driver board, and maybe some sensors for measuring wheel speed and a controller to count revolutions or provide closed loop speed control.
We thought it would be handy if you could just buy a wheel that had all of those things build in so we set about designing one and the result is the HUB-ee - just bolt it onto a chassis, apply power and away you go!
Our first HUB-ee wheels are almost ready, here are a few key features:
They are easy to take apart so you can remove or replace the motor or electronics, and we are developing a range of different circuit boards with features ranging from LEGO NXT compatibility to full closed loop speed control (so you can plug it in and control it as easily as a hobby servo).
For more detailed information please visit the HUB-ee resources page.
Pronunciation? ... It's HUB as in wheel hub, with an ee as in e-mail.
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Want to see HUB-ee wheels in action - check out these videos:
The Arduino sketch is a little bit adaptive, the bot keeps track of sensor activity and ramps up the motor power if it thinks it is in an open space.
Still got some work to do on that stopping distance - those head on collisions hurt!
The basic wheel, with and without the tyre - with the tyre it is 60mm in diameter and just 20mm wide.
Without the tyre you can use it to drive tank tracks.
An exploded HUB-ee. They can easily be stripped down and hacked, plus all the electronics are open source.