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First prototype of a desk fan that can be controlled by hand gestures instead of a switch around the back.

With many fans you have to reach around the back to turn them on and off. Using a simple infrared sensor this fan can be turned on and the airflow adjusted by pushing or pulling at the air. In the middle of the fan is a sharp infrared sensor. Some string is tied to the grill so air movement can be seen in a video. Warning - This sounds super annoying .


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Made with bits borrowed from other projects, Mr Hairy attempts to navigate around things. He has a single infrared sensor mounted on a servo to scan for obstacles. Main components are an old Arduino Duemilanove, a Pololu Qik 2s9v1 serial motor driver and two 30:1 low power micro motors.


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"Tank Bot" is a simple autonomous tracked robot. He navigates over slightly rough terrain avoiding dangers like plants and fences. He is made from Tamiya tracks, twin motor gearbox and uses a Pololu A-Star micro as the brains.



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I liked the idea of the bristle bot as it is a very simple entry to making a robot for small children (although beware the button battery). It introduces a child to ideas of movement and balance. You can play around with different toothbrushes to see how the bristles affect direction, and change the placement of the battery and motor to affect how straight the robot travels.


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This is an oldie but a goodie. Using simple things such as a plastic cup, textas, blutack, a battery and a motor this bot runs around making its own unique pattern that can be changed just by changing the weight attached to the motor or by moving the motor position


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This little palm sized robot drives around and tries to avoid things. I made this to see what can be done with little Solarbotics motors and the limited pins on the PICAXE 08M chip but didn't plan ahead so ended up with a lot of crazy soldering.


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It's not fancy! This is a simple robot made using blank DVD's for the chassis and double sided foam tape. It's purpose is to drive around and not run into things. It uses a Dagu S4A mini driver for the brains and a couple of plastic gear motors to drive along. A sharp distance sensor is used to look ahead for objects.