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https://www.we-online.de/katalog/media/o179215v410%20ANR018_GNSS_I2C_Communication.pdf

Produkt Katalog www.we-online.com/products

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Tel. +49 7942 945 - 0

Würth Elektronik eiSos GmbH & Co. KG Max-Eyth-Str. 1 × 74638 Waldenburg × Germany

ANR020: Proteus-III - Remote GPIO - How to

sandro93 — Tue, 02 Mar 2021 10:46:58 GMT

The Proteus-III is a Bluetooth[emoticon:6abd1cb2558648488dbea31d006afc59] LE module based on the nRF52 Nordic Semiconductors SoC which presents various Bluetooth[emoticon:6abd1cb2558648488dbea31d006afc59] LE and low power features.

It provides a command based UART interface that allows the configuration and control of the Proteus-III by simple commands.

Besides the commands needed for configuration and radio data transmission, various commands are provided to use the so called remote GPIO feature.

This feature allows to write and read up to 6 GPIOs of the Proteus-III via Bluetooth[emoticon:6abd1cb2558648488dbea31d006afc59] LE connection. With help of this, simple applications, like switches or digital level detectors, can be realized with the Proteus-III without the need of connecting a host controller to it.

This application note describes which steps have to be run to switch a GPIO and how to read the pin level of a GPIO via remote connection.

First or all a general description follows, then in the Examples section it is demonstrated how the GPIOs can be controlled by a second Proteus-III radio module or by smart phone.

USEFUL LINKS

Application Notes www.we-online.com/appnotes

REDEXPERT Design Tool www.we-online.com/redexpert

o179977v410 ANR020_Remote_GPIO_How_to.pdf (we-online.de)

Produkt Katalog www.we-online.com/products

DIRECTLINKS

CONTACT INFORMATION

Tel. +49 7942 945 - 0

Würth Elektronik eiSos GmbH & Co. KG Max-Eyth-Str. 1 × 74638 Waldenburg × Germany

ANR016: Proprietary Migration Guide (App Note)

sandro93 — Mon, 27 Jul 2020 11:49:48 GMT

The radio frequency spectrum is regulated by designated regulatory authorities that definehow specific spectrum bands can be used. As each frequency band has its strength, WürthElektronik eiSos provides for each frequency band proprietary radio modules, which allowenergy efficient and fast data transmission.

With the evolution of radio chips, new proprietary radio modules have been developed, thatare more energy efficient during data transmission and reception. Furthermore new codingand modulation techniques have been added, that allow higher transmission ranges (longrange mode) and/or higher data rates.

Due to this natural evolution, when redesigning a device that is already using a proprietaryradio module, it is recommended to use the latest member of the corresponding radio mod-ule family.

This application note describes the key factors to be considered, when replacing a pro-prietary Würth Elektronik eiSos radio module with its successor from the same family

If a switch from 868 MHz to 915 MHz is desired to serve also the North Amer-ican market, the application note ANR015 "FROM 868 MHZ TO 915 MHZ" describes the necessary steps to be performed.

USEFUL LINKS

Application Notes www.we-online.com/appnotes

REDEXPERT Design Tool www.we-online.com/redexpert

https://www.we-online.com/web/en/index.php/show/media/07_electronic_components/eismart/eismart_appnotes/ANR016_Proprietary_Migration_Guide.pdf

Produkt Katalog www.we-online.com/products

DIRECTLINKS

CONTACT INFORMATION

Tel. +49 7942 945 - 0

Würth Elektronik eiSos GmbH & Co. KG Max-Eyth-Str. 1 × 74638 Waldenburg × Germany

ANR015: From 868 MHz to 915 MHz (App Note)

sandro93 — Mon, 02 Sep 2019 13:24:57 GMT

The radio frequency spectrum is regulated by designated regulatory authorities that define how specific spectrum bands can be used. The ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) bands are free to use without license costs. As there is no single worldwide regulation, national authorities define which of the frequency bands are open for access in each specific Country.

The 2.4 - 2.5 GHz band can be used worldwide, but has specific disadvantages. Besides the poor transmission range due to the bad penetration of this frequency, the 2.4 GHz band is really noisy and crowded due to the vast number of Wi-Fi and Bluetooth devices around.

To overcome these issues, in Europe the frequency band 868 - 870 MHz is very common, as it provides data transmission ranges and speeds that are sufficient for many industrial applications.

Companies developing radio products for the European market often look out to non-European markets to expand their business volume. Most often the American as well as the Canadian markets are faced due to their huge potential. Unfortunately, in northern America the 868 MHz frequency band is not permitted by the Federal Communications Commission (FCC) USA and the Innovation, Science and Economic Development (ISED) Canada, such that the 902 - 928 MHz frequency band is taken as appropriate Counterpart.

This application note describes which key facts have to be considered, when replacing a proprietary Würth Elektronik eiSos 868 MHz radio module by it’s 915 MHz radio module Counterpart.

USEFUL LINKS

Application Notes www.we-online.com/appnotes

REDEXPERT Design Tool www.we-online.com/redexpert

https://www.we-online.com/web/en/index.php/show/media/07_electronic_components/eismart/eismart_appnotes/ANR015_From_868_…

Produkt Katalog www.we-online.com/products

DIRECTLINKS

CONTACT INFORMATION

Tel. +49 7942 945 - 0

Würth Elektronik eiSos GmbH & Co. KG Max-Eyth-Str. 1 × 74638 Waldenburg × Germany