Glenn Godden <glenngod...@gmail.com> writes: > I would like to interface a MightyOhm ionization counter ( > https://mightyohm.com/blog/products/geiger-counter/ ) to weewx to report on > cosmic rays, the ionization counter has both a SPI ASCII and pulse output. > Has > anyone made this interface? Guidance and inputs requested. Please advise.
I have a MightyOhm Geiger Counter kit that I haven't built yet. My bias in these situations is MQTT. It seems more complicated but it lets you break the problem into small pieces that can be tested separately, and then the geiger counter piece and the weewx piece are totally decoupled. So steps would be (and this is my plan): 1. install mosquitto as a broker. If you skip TLS and auth because it's your LAN it's easy. Doing it right is only a little harder. 2. Write python code to send the counts to a topic, using paho mqtt. or pick your language, doesn't matter. Or even do something really bogus like invoking mosquitto_pub as a shell command. 3. use mosquitto_sub to verify that the data is arriving 4. use the weewx mqttsubscribe extension to put the data into weewx 5. realize that you can also set up home assistant, and use the same sensor via mqtt, and turn the heat onin your fallout shelter when radiation levels increase, so it will be comfy when you go in. That's obviously humor, but Home Assistant complements weewx and you will want all weatherish data in both. Step 2 isn't really that hard. I have code for ups-nut (not about weewx) to monitor power status and am going to clean it up and publish it. Yes, you could write a weewx service to parse the mighty ohm data and inject it, but with mqtt, you can keep that totally separate and you can have the counter on a different machine in a different place. -- You received this message because you are subscribed to the Google Groups "weewx-development" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-development+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-development/rmia6gs2x9y.fsf%40s1.lexort.com.
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