A Node-RED node to calculate sum of incoming numerical values.
This node is based on Eisbehr's node-red-contrib-average.
Use the "Manage palette" option inside Node-RED, or within your Node-RED user directory (typically
~/.node-red), run the command:
npm install node-red-contrib-add
Calculate the sum of incoming
Messages not containing a valid numeric value will be rejected.
Will return the current sum of all
msg.payload values as output
msg.payload. Every other data will be pushed through.
The sum can be reset with an incoming message that contains
msg.reset. Then all stored data will be removed and the initial sum starts at zero again.
Sample Node-RED flow is included in /examples folder
This project is licensed under the Apache 2.0 license.
Harshad Joshi @ Bufferstack.IO Analytics Technology LLP, Pune