Receiving Oregon Scientific sensors with RTL-SDR
Kevin Mehall got his RTL-SDR dongle and wasted no time in developing a decoder using GNU Radio for the 433MHz transmissions of Oregon Scientific remote temperature sensors (v1 protocol). These devices transmit on 433.9 MHz sending data packets containing the temperature data every 30 seconds. The transmitter uses On-off keying and the 32 data bits are manchester encoded. He uses the GNU Radio osmosdr block to capture signals from the dongle. This project uses GNU Radio from the command line, not the Gnuradio-Companion GUI.
You can find the source code and docs at Kevin Mehall’s GitHub page.This entry was posted in code, open source, SDR, sensors and tagged 433 MHz, Oregon Scientific sensor, RTL-SDR.