Welcome to our blog.

This blog is dedicated to our project: Swarm tracking System. We started this at the request of our school the PXL university college. The purpose of the project is to coordinate one or more Doodle Bots using feedback from a camera.

We plan to achieve this by using a centralized server connected to the Doodlers and the camera who will do all the image processing and calculations. Meanwhile a client can connect to the server to take control over the Doodle Bots. This can easily be done using JavaScript though we are unsure whether this might negatively influence the performance. The Doodle Bots will use Bluegiga's BLE112 to communicate with the server. The usefull thing about the BLE112 is that it can also be used to control our bots. The camera, a Logitec C270, will be suspended over the surface on which the swarm will draw, this way it will have the best view.

The underlying purpose of this project is not to make a product to sell or distribute (although it will be completely open source) but primary this project is supposed to teach us stuff only experience can teach.

Tuesday, February 18, 2014

Doodle bot electronics

In the picture above you can see our Doodle bot with its prototype control electronics. On the breadboard we have a very simple circuit containing a H-bridge a capacitor and a LED. The H-bridge helps control the motors and the capacitor keeps the servo from drawing to much current, whilst the LED shows if the battery is properly connected. in the middle we have an Arduino Uno who will control the circuit above it. In the lower part resides the battery pack, four AAA batteries deliver around 5V to our electronics.
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