DesignCon is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Early Bird Registration Now Open till November 30th. Save Up to $300 Today!

DesignCon 2019 Presentation Viewer

Purchase procecdings

Welcome to the DesignCon Presentation Store. Here you can view and download conference and/or show floor theater presentations before, during, and after the event. If you’re looking for a presentation from a specific session that you’re unable to find here, note that it’s likely because the presenter has not provided permission for external use or has not yet shared their presentation with us. Please check back after the event for a more complete catalogue of available presentations.

If you’d like to do a bulk download of all conference presentations or technical papers at once, please click here for conference presentations or click here for full technical papers. For sessions not included in the main conference, click here for Chiphead Theater presentations or click here for sponsored session presentations.

Lowest-cost Communication with light from an IoT Device to Smartphone

Laszlo Arato (Professor for Electronics, Signal Transmission, and Processing, NTB Buchs)

Location: Ballroom F

Date: Thursday, January 31

Time: 11:00am - 11:45am

Track: 03. Integrating Photonics & Wireless in Electrical Design

Session Type: Technical Session

Vault Recording: TBD

Audience Level: All

While fully integrated smart sensors and devices are getting smaller and cheaper, communicating their data becomes the biggest cost factor. Conventional links like USB, WLAN, Bluetooth, ZigBee, and others are too expensive, when selling price shall drop below $ 5.-.

Implemented for a medication transport temperature-tracking device of a Swiss company, we demonstrate the unidirectional data transfer of 84 Bytes of Data from the LTI device (Long Term Indicator) to almost any smartphone in less than 10 seconds at almost no additional cost using only 3 LEDs.


Using just a button and a few LEDs, it is possible to transfer data at almost no hardware costs from a smart sensor device to almost any smartphone.

We demonstrate this with a proven design and product, but this can be adapted to almost any other device or application. The method is free to use and our intention is to make it public and thus to avoid patents blocking this.

Intended Audience

Interest in communications and/or electronics

Presentation Files