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+--- Thread: Reactor dimmer knx (/showthread.php?tid=5971)
Reactor dimmer knx - gdimaria - 18.04.2025
I have to connect a thermal sensor ntc10k on reactor
where to connect and how to configure?
Thanks
Peppe
RE: Reactor dimmer knx - admin - 22.04.2025
You device has a 1-Wire port so you can use ds18b20 sensor instead.
For NTC sensors you need an additional resistor to create a voltage divider. It should be connected like this:
GND -- 10k fixed resistor -- I/O port -- NTC 10k sensor -- 24V
Then you will need a script to calculate sensor resistance based on the I/O port voltage and convert resistance to temperature using a look-up table. The resulting accuracy might be quite low.