R PiHome+ can control heating system, display and record into the database the temperature of more than 10 conected temperature probes. After installing all of the probes, select one as primary. The central heating system is regulated by the primary probe.
If you need to extend wires, we recommend to use CAT5 cable.
Connect the data and ground to one pair of wires – blue/blue-white for example. Use a single wire from another pair for 3.3 volt power. Leave all other wires unconnected – do not attach them to ground.
Also avoid the temptation to double-up wires to reduce resistance.
Doubling up wires dramatically increases capacitance on the data circuit, as does grounding unused lines. The increased capacitance distorts the waveform, potentially putting the pulses outside the required limits, and so resulting in the one-wire system not communicating with the sensors.
You can configure different temperatures throughout each day. By default, each day is split into 4 different periods; you may, however, split each day separately into 3, 2 or 1 periods based on your preferences. Similarly, each period can have its own specific timeframe and temperature.