New answers tagged programming
There is a (new?) LEGO brand sound sensor (9845) for $35 on the LEGO store. I don't know if it's suitable for your particular application but sounds plausible. Using the NXT Brick (sold separately), the Sound Sensor allows your LEGO® MINDSTORMS® NXT robot to hear! The Sound Sensor is able to measure noise levels in both dB (decibels) and dBA (frequencies ...
Not without hacking the firmware, which would be against FLL rules. One solution I have seen many teams use it to only write one program. This program has it's own menu (that you have to make yourself as part of the program) that calls subprograms (presumably saved as My Blocks).
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