This week we've gotten into the mechanics of constructing our device. On Saturday we visited Metrix and used their soldering room to hook up elements of our switch to a bread board to enable control from an Arduino. We deconstructed the switch used to change frequencies on our baby monitor receiver and hooked its elements to a bread board in a way to enable us to change frequencies by moving a wire between the various pins. Our next step is to attach all the frequencies to the Arduino, so that we can control them with a program. We would then modify the program so that it would be initialized with a tilt sensor and change frequencies based on a serial reading from a compass. We are currently trying to configure our board using transistors to enable this type of control. Our biggest challenge once we figure this out will be to find other transmitters that use the same frequencies as the ones the monitor receives. We are envisioning either buying more Fisher-Price monitors or hacking a walkie-talkie to solve this problem.
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