Posts with «unicycle» label

Ride to work on an Arduino-based electric unicycle

Some people drive their car to work. Some walk. Others ride their bike. Well, in Nick Thatcher’s case, he prefers to hop on his own electric unicycle. The serial creator of self-balancing vehicles has just completed his latest project, dubbed  “Plan-B.”

Unlike his other builds, this time Thatcher set out to make Plan-B a true “commuter” unicycle with the utmost portability–boasting a foldable design, a handle on its rear for easy carrying, and a LiFePo4 battery to keep it lightweight.

His newly-constructed personal transport is equipped with a 24V 350W geared motor and a SyRen 50A motor controller, along with an Arduino Uno and an IMU to help maintain the cycle’s stability. Beyond that, Plan-B uses a wheelbarrow wheel with a chain drive from the motor.

Watch Thatcher commute in style below!

Homemade self-balancing unicycle uses an Arduino to keep upright

On the whim of a coin flip, Nick Thatcher once decided between building a homemade Segway, or a self balancing unicycle. Even though the powers of fate chose the former, Thatcher's thirst to build wasn't quenched -- he built the one-wheeled scooter anyway. The Raptor looks a lot like a Ryno unicycle built from spare parts -- a chain driven wheelbarrow wheel powered by a 350w geared motor, a pair of batteries wired in series, some PVC and polycarbonate, an IMU gyro and an Arduino UNO -- all hobbled together to form a one-wheeled electric mount. Thatcher says the scooter can push 10mph safely, but faster speeds tend to outpace the gyro's corrective efforts. Still, the bike promises between 90-120 minutes of face-plant free fun, provided the rider is at least a little balanced. The motorized unicycle isn't for sale, but peek on over to Thatch Industries for a parts list, or scoot on past the break to see the bike in action.

Filed under: Misc

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Via: Hackaday

Source: Thatch Industries

Self-balancing unicycle using Arduino and Sparkfun IMU

Here’s proof that you can build cool stuff with simple tools. This self-balancing unicycle uses an Arduino and a five degree of freedom IMU from Sparkfun to keep the rider upright. Well, it’ll keep you upright as long as you have good side-to-side balance. But that’s true of any unicycle, right?

The Raptor was built by [Nick Thatcker] who is no stranger to self-balancing transportation. A few years back he built a Segway clone and the same type of geared motor used in that project also went into this one. I connects to the wheel with a chain, allowing him to keep the motor hidden in the saddle. He gets between 90 and 120 minutes of used on one charge with a top speed of 10 MPH. The motor could move you along faster but he has limited this in firmware to ensure it has enough power to ‘catch up’ if you lean too far forward.

Don’t miss the demo after the break. If you like this unicycle there are several others worth looking at.


Filed under: transportation hacks