Hi there,
I have created an initial drop of a device driver that can pull data from the Geiger Counter World Map for a particular Geiger counter (Check out GQ Electronics for such devices also available on Amazon, I have the GQ GMC 500+ ) and presents that in a virtual sensor.
Currently it supports uSv, CPM and ACPM values that are the latest values your device may have sent to the map.
Installation follows the usual virtual device process and the raw driver file can be located here
https://raw.githubusercontent.com/WBEVAN/gmcmapdata/master/gmcmap_device.groovy
GMC Forum information on this driver can be found here for more info on the installation process
https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=9645
Enjoy