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AlamoRobotics's blog

Bench Test - GP2Y0A21YK

I little while back I was blogging about my mini-sumo project, the Pink Pearl, named after a brand of pink eraser I like. I had decided on the pink color because I believe, contrary to popular opinion, color does not matter at the mini-sumo scale. Here are the results of my first bench test using the Sharp GP2Y0A21YK (10-80 cm) sensor.

**Disclaimer - This test was not performed under highly controlled laboratory conditions, but by a robot geek in a garage.**

It's Alive!

After finally getting all the parts and assembling my new uBotino board, it didn't work! So I grabbed my multimeter and began probing around to find the problem. Got my Dad to hep me since he spent his entire career in electronics. Apparently, this particular board had a couple of places where the etching didn't complete properly. Found a short on the input pin of the voltage regulator and a short on pin 14 of the motor driver.

Motor Mounts!

I was wondering what I could do with those aluminum plates that come on the bottom of those half-sized breadboards. They make nice motor mount material for very small motors! These are for my mini-sumo robot.