Today, we have (thanks to Samuel T. ) a new idea to calculate the radius. Instead of calculating at each turn the new radius, we can just save in a FRAM the corresponding pixel for a LED in a propeller given position.
We chose the last components : motor, motor driver, power management.
During a discussion with the person in charge of the mechanics devices creation in the school, he explained to Sylvain that the use of a encoder wheel will be difficult so, we kept our first idea : resynchronize the propeller 1 time by turn with a simple IR photodiode.
Personally, at the end of the day, I began working on the FPGA. Tomorrow, I will keep on working on the FPGA.
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