Pushkar Kolhe

From a chair to a guitar!

pushkar — Mon, 16 Apr 2012 10:43:09 +0000

We participated in the Great Chair Hack competition. We decided to convert an IKEA chair into a guitar. I am an engineer: If I can't play the guitar, damn it, I should be able to atleast make one. We knew it would be hard to make a drum for an [...]

Helicontrol with Arduino

pushkar — Sun, 10 Jan 2010 06:00:23 +0000

Heli's motor take up very high current. So, a motor driver that supports less than 4 or 5 Amps was out of the question. We did not have FET's to make a H-Bridge, so we hacked upon the radio box of the heli and connected a cable to the FET bridge already there. We also [...]

Rangefinder using Arduino and Servo

pushkar — Sat, 19 Dec 2009 05:10:04 +0000

A Hokuyo Range sensor costs you $2000 and a cheapo SHARP IR sensor with a servo is $20, max!. The difference between them is probably only that the range sensor is more mechanically stable and hence faster. The range sensor that we hacked is actually an IR sensor pasted over a servo. And a servo [...]

MiniUAV Project Started

pushkar — Thu, 10 Dec 2009 06:55:03 +0000

We (me and Jon) are bored to hell. I saw this cheap $30 single rotor helicopter toy at Fry's and bought it, with the motivation that I would some day make it into a drone. We flew it in the Klaus atrium. After it broke several Christmas decorations and itself, we searched for [...]