node-red-contrib-geopresence 1.0.0
Calculate presence based on lat/long and distance
node-red-contrib-geopresence
A Node-RED node that detects whether a given set of coordinates is within a specified distance of a fixed location.
Features
- One input, one output
- Configurable location and radius
- Dynamic coordinate checking from
msg
,flow
, orglobal
- Customizable presence and absence messages
- Uses Haversine formula for accurate distance calculation
Installation
npm install node-red-contrib-geopresence