Tag Archives: SigFox

Make your own $1 Sigfox IoT device

Previously in my blog post “I held the first $1 Sigfox device“, I’ve explained how the Sigfox network will soon accept some really low cost Radio MCU chip on its network. One of them is the cmostek CMT2189C MCU. It has a cost around $0.25 and has it own integrated radio compatible to Sigfox. This device has initially been made to support garage door remote and it has a lot of limitation. However, you can imagine many application. This post details the first steps to get a development environment ready. And this should save some of your time by going directly to the right way.

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IoT Decoded Podcast EP#3

IoT decoded #3, the monthly LPWAn podcast analyzing the IoT news and trends. Register to podcast : looking for feed subscription on bottom right of this web page.

This month content:

The musical theme is Cascade by Kubbi (CC)

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IoT Decoded Podcast EP#2

IoT decoded #2, the monthly LPWAn podcast analyzing the IoT news and trends. Register to podcast : looking for feed subscription on bottom right of the page.

This month content:

The musical theme is Cascade by Kubbi (CC)

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I held the first $1 Sigfox IoT device !

This was 2 years ago during the first Sigfox connect event: Christophe Fourtet was on stage opening a letter and this action was firing a Sigfox message. He was announcing Admiral Ivory service. He was announcing $0.20 solution able to communicate on the Sigfox network. Since this date, the Admiral Ivory service has just been a strategic vision proposed by Sigfox for a future low cost IoT, far from the device maker day to day reality. Far from the minimum $10-$15 devices we currently produce coming with its $2-$5 yearly subscription fee.

Could we imagine, this two years old vision will be the next semester reality ?

Being in relation with the Sigfox lab, I’m back with some really good news about making this vision becoming a reality, let see how it is going to be possible.

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UnaMKR, Ardunio Sigfox devkit

We previously discovered the UnaMKR devkit. This devkit has two boards. The module board with the radio module and the sensors. It is the one I talked about in my previous post. The Arduino board is the second one. By programming this Arduino MKR Zero you can create custom program to use sensors and radio module to experiment Sigfox. The big advantage is a single board where ever you are located as it supports all the Sigfox zones.

During this second step, we are going to see how we can use the devkit to make a simple sensor measuring and reporting.

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UnaMKR, the Sigfox Monarch experience

Unabiz has recently released the first Sigfox Monarch certified devkit. It is based on a LiteOn WSG309S module. The LiteOn module contains a St-Microelectronics based solution including a BlueNRG / S2LP in it.

In addition, the module board also have different sensors: temperature, humidity, pressure, air quality, accelerometer, magnetometer, light sensor, magnetic switch (reed switch).

You are able to use the module board as a standalone circuit. You directly program the LiteOn module. Or you can use the standard AT interface of the module and connect an Arduino MKR Zero board to use it.

In this post, we are going to see how to use the kit to test Sigfox Monarch solution.

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Sigfox monarch

Sigfox Monarch service is a free global service allowing to determine the zone where a device is located.

By zone location I mean RC (Radio Configuration zone). It basically defines the European Zone (RC1) or the North American Zone (RC2)…

Thank to this technology a world-wide device, having no GPS to get its location, is able to determine its radio configuration and the associated frequencies to use for transmissions.

This service is covering most of the airports and ports around the world to support the existing customer use-cases like Louis-Vuiton tracker and Safecube container tracking.

It would be great if this service could, in the future, be also used to broadcast/multicast information to devices. It could be used to get time from the network and later be also used to transport custom data to the group of devices. But currently it does not transport any data.

In this post I propose to detail the Monarch technology and then, in a second post to see how to use it with the first released devkit from Unabiz supporting Sigfox Monarch.

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MeteoHelix, Sigfox weather station made by Barani Design Tech.

BARANI Design Technology has contacted me to test their weather station product MeteoHelix IoT pro. This is a Sigfox weather station but they also have LoRaWan versions. It is also the first personal weather station class product to meet the World Meteorological Organizations (WMO) measurement accuracy guidelines. So it can be used by scientific and professionals according to its designer. Thanks to LPWAn technologies, it can be deployed anywhere. No power / communication constraints.

I like this kind of product because they are really interesting use cases for LPWAn technologies and useful for agricultural environment. I see a part of my family working in the agricultural domain taking some manual notes about rain daily taken at one point. In 2019 it’s so easy to get graph from a cloud platform and have multiple device for the multiple fields you work on. Sounds like a revolution but it have a price 600€ including communication !

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