Archive for July 2009

The Tech Junkies Episode #5

In episode #5 of The Tech Junkies, Ben and Eric modify a $15 R/C car from Radio Shack into an autonomous, GPS navigated car. At the end of the episode the car must navigate down multiple roads using only the microcontroller and GPS module.

[QuickTime (H.264) Download]-[XviD (AVI) Download]

Mini GPS Autonomous Car for Under $100

First off, if you haven’t watched episode #5 of The Tech Junkies, I’d have to insist you do that now:

Okay, so let’s get onto the details. As seen in the video, we hacked apart a $15 Radioshack R/C car for the purpose of outfitting it with a GPS chip. We ripped out the motor that was being used for steering and replaced it with a low-cost $10 servo. We also cut out the existing electronics so that only the wires coming from the battery and running to the drive motor we’re left. From here we took a breadboard and connected up our H-Bridge drive chip.

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