Robust heating, ventilation, and air conditioning communication channels

A heating, ventilation, and air conditioning (HVAC) communication method comprising generating, at a transmitter device, a primary signal and a secondary signal. Each of the signals comprise digital temperature data and digital humidity data. The secondary signal is a phase shifted representation of the primary signal. The HVAC communication method further comprises transmitting the primary signal and the secondary signal to a receiver device via a wireless link. The method continues by storing a look-up table that maps bit streams to temperature values and humidity values. The method continues by performing, at the receiver device, a comparison using the primary signal to execute error checking, and determining, at the receiver device, a temperature value and a humidity value using the look-up table based on the comparison.