Home

About Assetwolf

Features Overview

1. Connect

2. Process

3. Share

Heat maps of activity

Alarm handling

Real-time Operational Analytics

Custom dashboards

Schematics

Pricing

Support

Support documentation

Making a REST connection

Connect an asset using MQTT

How to send data using MQTT

Timestamps for data

Resending missed data

One comms device, multiple assets

Bidirectional MQTT communications

Understanding QoS

Using Secure MQTT

Simulating sending sensor data

Sending data from an Arduino

Sending data to an Arduino

Triggers and alarms

Using the MQTT Monitor

API

Connection

Sending MQTT data

Bidirectional MQTT data

Phi IoT scripting language

Variables in more detail

Phi: example usage

Sources of data

Function and filter reference

Calculating metrics

Phi Cookbook

Mean, median, stdev

Cleansing incoming data

Industrial IoT and B2B customer portals

Blog

Now supporting LoRaWAN

We've moved office

Rapid Washrooms wins BIFM Award

Announcing Phi: the new language for simple calculations and rules processing for IoT

Commands come to the trial sites: take control of your things!

Assetwolf now on Amazon AWS

Major upgrade of Assetwolf IoT platform announced

Contact us

Back

> > > >

Filter `keys`

To use a filter on a variable in an expression, write the variable then put a | pipe symbol, then write the filter name:

array|keys

Description

Given an array, this returns its keys.

Phi IoT scripting language

Variables in more detail

Phi: example usage

Sources of data

Function and filter reference

Calculating metrics

Find us on

Home | Terms & Conditions | Privacy Policy | Site map | Manage cookies

Copyright © Tribal Ltd. 1997-2025