[lmr] Fix rollover during wait for receive and switch to 5 second interval
[hm] Add RF_SEND_INTERVAL = 5 to set number of PID cycles before fan speed RF TX
[lmr] Use only one digital pin for sourcing power to the measurement dividers
[hm] Fix inverted PWM for max fan speeds != 100
[hm] Hard-coded LED uses for now. Top=Fan On, Middle=Lid Open
[hm] Temporarily disable RF_SEND_INTERVAL until I can figure out what makes HM lock up
[hm] 20121224