rough writeup of the thermostat project

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diff --git a/additions/HW/thermostat/thermometer.jpg b/additions/HW/thermostat/thermometer.jpg
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diff --git a/additions/HW/thermostat/transmitter-build.jpg b/additions/HW/thermostat/transmitter-build.jpg
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index 0000000..c998f32
--- /dev/null
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