node-red-contrib-topic-timeframe-trigger

Node-RED node which observes input topics and only produces an output if n distinct topics are received n times each within the specified time frame.

Installation

Change directory to your node red installation:

$ npm install node-red-contrib-topic-timeframe-trigger

Outputs

When enough messages are received to trigger, a message is output as per the configuration. In addition, all of the messages received within the timeframe are added to the message as an array property called triggers.

Enabling extra debugging

Install node-red-contrib-config and drag a config node into your workspace. Configure the node to set a global variable called topic-timeframe-trigger with a JSON value of {"debug": true}. Also make sure that the config tickbox for active is unchecked. Redeploy. Now click the button on the config node. This will trigger all instances of topic-timeframe-trigger to write extra logging to the os syslog next time they're invoked.