Arduino TI CC1101 code to receive data from a Kärcher Soil Moisture Sensor Sensor uses a TI1150 Sensor Link: https://www.amazon.de/K%C3%A4rcher-2-645-214-0-SensoTimer-ST6-ogic/dp/B00IEYVCFQ?th=1 (complete set) https://www.kaerchershop-schreiber.de/de/kaercher-sensor-fuer-sensotimer.html (single sensor) Kärcher Sensor Spare part number: 4.645-499.0
Parts necessary for receiver: Arduino nano, level shifter, cc1101 868 Mhz module (ebay)