September/October 2018
I have a number of wireless temperature/humidity sensors made by Oregon Scientific for use as weather station sensors. I would like to use them for a data acquisition and monitoring application. Does anyone know what frequency and mode they operate on and how I might use them to send data to a PC to record seasonal trends? Would I need a microcontroller to interpret the output or could it be read directly by the PC and then logged and displayed using software such as MakerPlot?
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Oregon Scientific registered with the Federal Communications Commission (FCC) to use 433.93 MHz as the frequency for its units YPGSL109, YPG SL109, YPG-SL109, YPG-SL1O9, YPG-SLI09, YPG-5L109. For only a few dollars you can buy small transceiver modules for the Arduino family of microcontrollers (MCUs), and others.
The arduino could capture raw transmissions and send the data to your PC’s terminal software via a USB virtual serial port. Then you could look at the raw information and decide what it means and how to use it.
Oregon Scientific has published information about its communication protocol and you can find here: wmrx00.sourceforge.net/Arduino/OregonScientific-RF-Protocols.pdf. The SourceForge project has other information and code that might help you: wmrx00.sourceforge.net.
