Overview

This is a sample node created to demonstrate the principles of creating your own nodes for the Watson IoT Bootcamp. The node functions as a kind of 'latch' - allowing an alert to be generated once when a value goes above a defined threshold. Once a payload has been delivered, another will only be delivered if the input value drops and then exceeds the threshold again.

The node takes a single input. If that input value is higher than the threshold then the payload is delivered but only when the threshold is exceeded.

Usage:

Before sending a payload into the node - add an attribute to that payload: payload.checkValue. The checkValue will be compared to the Threshold defined in the node editor each time a new payload arrives.

Sample Flow

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