Hey Dan, Not an expert by any means, but this can easily be accomplished with an Arduino/clone/ESP8266/Any micro controller, a little code and a little circuitry (Think voltage divider for simplicity). Depending on the micro controller, you may need to add an ADC (Analog Digital Converter)/ and a 415/933 Mhz transmitter.
If WiFi is close by, your best bet may be an ESP8266. I'm using this for many things on my station, monitoring irrigation, grid power, extra temp/humidity sensors, garage door status, Geiger counter, the list goes on. I wrote a basic threaded MQTT driver for Weewx, and am pulling in an additional 75 measurements from 9 sensors. Pulling from a SDR will be a little more complicated, because you may have to design you own "protocol" to transmit and decode the data, verify its validity, but with a little experimentation it should be doable. Stick your project in a small project box, and you can be looking quite professional! http://carlincomputing.com/weewx On Thursday, April 24, 2025 at 3:25:42 PM UTC-6 Dan Hinckley wrote: > Has anyone spotted a 415/933 MHz device to monitor a 12 VDC source, which > can then be used with the SDR driver for weewx? -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/f868d013-306a-4a8c-a9ba-af181ff98253n%40googlegroups.com.
