Dojikko, a Clumsy Robot (Demonstration)

Posted on 2013-03-09 at 12:43 in Videos by Robbi-985.

This is a project I’ve been working on since December 2012. Dojikko explores her environment using an ultrasound “radar” to see, and a compass to tell which direction she’s facing. An Arduino Mega controls everything. She tends to be clumsy due to my lame programming. The battery lasts for about 3 to 3.5 hours non-stop.

[Watch in HD]

I’m currently working on a video showing the construction process, but there’s an awful lot of footage to work through, so I wanted to at least make this video to introduce this project.

The chassis is a LynxMotion A4WD1 (the wheels and motors were included in the A4WD1 kit v3). The pan/tilt mechanism (head) is also a kit from LynxMotion, although the servos that move the head were sourced separately and I’m using nuts and bolts rather than the pathetic excuse of the nylon fasteners that the kit comes with. The ultrasound module is the extremely cheap Chinese HC-SR04, and I’m very impressed with it considering it’s a 10th of the price of the “Ping)))” module that it is an alternative to. I bought a handful of them since they were so cheap, but I’m ending up enjoying the challenge of using only 1 and making use of the pan/tilt servos.


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