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Step 5But what about the brain?
Like every good robot, ours needed a brain. A custom control board was designed to do exactly that. Dubbed the "Colibri 101" (which stands for Hummingbird 101 because it's small and efficient, of course), the board includes more than enough analog/digital inputs, some power modules for the wheels, a LCD display and an XBee module which is used for wireless communication. All these modules are controlled by a Microchip PIC18F8722.
The board was voluntarily designed to be very compact, both to save space in the robot and to save PCB material. Most of the components on the board we're samples, which allowed us to diminish the overall cost of the PCB. The boards themselves were done for free by AdvancedCircuits, so a big thanks to them for the sponsorship.
Note: To keep with the spirit of sharing you'll find the schematics, the Cadsoft Eagle files for the board design and the C18 code for the microcontroller here and here.
The board was voluntarily designed to be very compact, both to save space in the robot and to save PCB material. Most of the components on the board we're samples, which allowed us to diminish the overall cost of the PCB. The boards themselves were done for free by AdvancedCircuits, so a big thanks to them for the sponsorship.
Note: To keep with the spirit of sharing you'll find the schematics, the Cadsoft Eagle files for the board design and the C18 code for the microcontroller here and here.
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