Bluetooth Low Energy now in Amazon FreeRTOS

Amazon has recently announced support for Bluetooth Low Energy in Amazon FreeRTOS. Amazon FreeRTOS is an IoT operating system for microcontrollers. Support for Bluetooth LE allows you to see Bluetooth devices and extract sensor data. Amazon’s implementation also allows you to subscribe to MQTT topics over Bluetooth Low Energy through an iOS or Android mobile device.

There’s an example how to Perform OTA Updates on Espressif ESP32 using Amazon FreeRTOS Bluetooth Low Energy. It shows how to connect Amazon FreeRTOS devices using Bluetooth Low Energy to AWS IoT Core via Android and iOS devices.

Fleet and Asset Tracking with iBeacons and Geotab

Bluetooth iBeacons are increasingly being used with fleet tracking. An example is Geotab who claim to be:

“World’s leading connected vehicle company, helping businesses leverage data to better manage and track their fleet”.

GeoTab has IoX extensions that extend the capabilities of their system.

IOX-BT

One such extension is IOX-BT which monitors beacons attached to tools and equipment. This allows the system to be used to improve asset utilisation, reduce misplaced equipment, boost productivity, reduce operational costs and improve on-time delivery.

Building Construction Industry Time and Attendance Tracking

One of our clients Chime Software Limited, part of Wren Construction, is offering a Time and Attendance Tracking system for the building construction industry. It’s a mobile and desktop solution allowing teams to easily collaborate.

The clock in and clock out uses iBeacons. It’s possible to view and authorise timesheets either from your desktop or mobile phone. It’s also possible to take textual and photographic notes for sharing across a team or project.

What is a Smart Factory?

A new article at IoT World Today asks Is My Smart Factory Smarter Than Yours? It’s Hard to Say.

The latter part of the article explains how, when there’s a problem in a smart factory, it can have large affects. The onus is on technology that can predict problems before they cause downtime. This leads to questions where the data processing should be the observations that:

“In the long-run, pushing everything to the cloud doesn’t work from a cost point of view.”

and

“Once you aggregate and compress the data, for example, to ‘max,’ ‘min,’ ‘outliers,’ ‘average’ and stuff like that, you lose the ability to run data science”

Such situations are the focus of our new Sensor Cognition™ technology that can provide machine intelligence at the edge.

Insights into Bluetooth Mesh

There’s an informative article at LEDs Magazine on Bluetooth Mesh expert addresses questions about connected SSL. The expert is Simon Slupik, CTO of Silvair and chair of the Mesh Working Group at the Bluetooth SIG.

While the article explains the use of Bluetooth mesh in the context of lighting, many of the concepts are equally as applicable in other applications of mesh. The article covers robustness, interference immunity, low energy, scalability, antennas and security.

Read about Beacons and the Bluetooth Mesh

Student Attendance Monitoring with iBeacons

SEAtS Software, a student attendance monitoring solution has a new article that takes a look at options for implementing student attendance monitoring. It compares using iBeacons, mag stripe card readers, GPS, WiFi and QR codes.

SEAtS Attendance Monitoring Using iBeacons

The article concludes that iBeacons are best because they are easy to install, provide the best accuracy, are affordable, easy to use and reduce administration time.

Read about Beacons in Education

Apple Tag – a Tile-like Device

In our previous post on Apple WWDC on the ‘Find my’ feature we explained how the use of others’ phones for finding your devices is much like Tile (and other tracking beacons). However, there’s evidence that Apple might also be creating their own, separate, Tile-like device. 9to5Mac also have some further speculations.

It’s also interesting that Apple are changing the API for looking for beacons. CLBeaconRegion has become CLBeaconIdentityConstraint. The functionality currently remains the same in that you can filter by UUID/major/minor. However, the renaming of the API to make it more generic suggests it might eventually also be used for something else which might be the Apple tag.

While devices such as the Tile are great, when finding items remotely, they assume lots of people have them for someone else’s Tile app to see your tile. While the Tile network is large at 15 million trackers it will never be large enough to reliably find things. Apple has a much greater reach to make such a scheme more successful. Tracking things such as your lost car or dog become far more feasible.

An observation is that Google Android has a substantially greater reach offering Google the opportunity to offer something similar, more reliable (due to sheer number of devices) but more open as they did with Bluetooth Eddystone vs iBeacon. Taking this idea further, it’s a shame there isn’t an open Bluetooth tracking system or standard, for example, championed by the Bluetooth SIG.

September 2019 Update: It’s looks like Apple will be using UWB rather than Bluetooth making the solution more accurate and more proprietary. If true, it will eventually compete with Bluetooth Direction Finding.

May 2020 Update: The device will be called AirTag.

Why Bluetooth is Perfect for the Industrial IoT (IIoT)

U-Blox has a useful article on Seven reasons why Bluetooth is perfect for the Industrial IoT, echoing some of our observations on Bluetooth LE on the Factory Floor. The article explains why Industrial Internet of Things (IIoT) systems and networks should consider Bluetooth as the communications infrastructure.

As U-Blox mentions, there’s predicted to be 5.2 billion Bluetooth device shipments by 2022. This data is from the latest Bluetooth SIG/ABI research:

Read about Beacons in Industry and the 4th Industrial Revolution (4IR)