DS18B20, nrf24l01, stc15l204 in mailbox outside, another device in house. rx via nrf24l01 and Raspi.
Temp to radiators and temp from radiators.
Grove particle sensor,Shinyei PPD42NS, on a Arduino Uno connected to a MySensors.org network using Nrf24L01.
Measuring outside temp and temp in garage.
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