The Dashboard (WebUI only) allows visual presentations of Event activities, Managed Device details, and data monitoring. Multiple dashboards can be created for different purposes. For example, one to monitor managed device data points (i.e., Power Consumption, Voltage, Current, Temperature, Fan speed, etc.) Another dashboard can monitor Nodegrid events such as authentication failures, login, and logout.
This document assumes a Temperature (Temp&Hum or AirFlow&Temp)
sensor has been installed in a USB port on Nodegrid and that has been
Install and Configure Sensor
Insert a Temperature and Humidity (T&H) or Airflow and Temperature (A&T) sensor into a USB port on a NodeGrid Device.
The sensor will be automatically discovered and shown on:
Enable Monitoring for the USB Sensor
Navigate to Managed Devices :: Devices :: AirFlowTemperature :: Management
Check USB Sensor under the Monitoring section.
Configure interval, 30 seconds in the screen below, 120 seconds is default.
Configure Air Temperature (AirFlowTemperature_cn1) channel 1
to Fahrenheit and Save
Select AirFlowTemperature_cn1 and configure it for
Fahrenheit degrees, save changes.
Log in to NodeGrid WebUI and Navigate to Dashboard.
Click on Discover and then Change the Index Pattern from ‘*_date_*’
It will display the reading for channel 0 (air flow in this
sample) and channel 1 (temperature)
From the Available fields, add the type_instance by hovering
over and clicking on the (+) sign
Click the type_instance on the Selected fields
section, and remove the AirFlowTemperature_cn0 since this is the Air speed. This
will leave the search with only the AirFlowTemperature_cn1, temperature
From the Available fields, add the value by hovering over and clicking on the (+) sign
The search will show datapoint with Time, type_instance
(Temp only) and its value
Create a Visualization
From OpenSearch Dashboards select Visualize
Click on Create visualization
Select source, in this case the OpenSearch created in
the section above called Temp
For Y-axis Aggregation select Median
For Field Select value
Input the Custom label Temp (F)
In the section Buckets, click the Add button, and select X-axis and select the Aggregation as Date Histogram
Then click Update
The page will be updated and show something similar like
Click the Save button
Input the Visualization name and then press Save
Edit Nodegrid Dashboard to add visualization
Edit the Nodegrid Dashboard
Select the Temp Visualization (you can add the Discovery Search
Then click Save
Select the Title Nodegrid
Dashboard will be shown as follows: