1. IoT buttons In my region, two IoT buttons caused a buzz and landed in the basket of end customers. One is the Amazon Dash button and the other one is the Gillette order button called Gillette Club Station. LoRaWAN and SIGFOX had no chance as carriers because of the lack of deep indoor coverage […]
On the unlicensed 869 MHz frequency band, there is a limitation in the duty cycle in Europe. Without Listen Before Talk, the channel can be used for transmissin for only 36 seconds per 1 hour (1% of 3600 seconds). If a weather station wants to send its measured value every second, this leads to a […]
IoT / M2M question by email to me: Q: Hi Harald,I found you on m2m.com forum discussion. I am an M2M enthusiast building an M2M PoC. I noticed in one of the m2m.com forum thread you suggested to Wakeup devices using SMS or Voice call. ie. Bootstrap to the GPRS network. I would like to […]
Abstract: IoT M2M Cookbook für die deutschsprachige Presse IoT M2M Cookbook – How to develop a device based on Wireless Wide Area Network modules Am Beispiel eines Gerätes zur Ortung wird der Aufbau einer IoT-M2M-Applikation erklärt. Dazu kommen Funkmodule für Mobilfunk und GPS zum Einsatz. Entwickler, die ein Gerät für Industrie 4.0 ohne Ortung designen, […]
IoT M2M Cookbook – latest news The latest version of the IoT M2M Cookbook made a big jump. I bought a GSM tester and made some measurement reports public. Mesurement report with GSM tester Such a GSM tester emulates a cellular based station. I explain in detail how to use the tester and which reports […]
My IoT M2M Cookbook has now a nearly final version. It explains in details how to move from an idea for a wireless device to a product for mass production. Table of contents: 1 Why to write the IoT / M2M Cookbook? 5 2 Fundamental considerations before starting the IoT / M2M project 5 3 […]
How to develop a device based on wireless modules Table of contents 1 Why to write the IoT / M2M Cookbook? 5 2 Fundamental considerations before starting the IoT / M2M project 5 3 Certifications and approvals 6 3.1 Examples for Radio approvals in EU and US 6 3.2 Examples for Radio approvals in US […]
My IoT M2M Cookbook got an update. The mayor news is that everybody who owns a copy of the book will get an export (Touchstone file) out of CST Microwave Studio for import to Atyune. Atyune is a free of charge software to generate a matching circuit automatic. The jitter of the resonate frequency generate […]
Ceramic embedded LTE antenna This LTE antenna with is very detailed documentation is a good example to explain the working of ceramic antennas on a PCB with different size of ground plane. I. Embedded LTE antenna efficiency The antenna is resonating in all major LTE, GSM and HSPA bands and on Wi-Fi 2400 MHz and […]
About IoT Meetup group in Zurich The Internet of Things is connecting us all. We should connect in person, in the real world, as well as digitally! This meetup group is for everyone who is interested in doing projects and publishing their data using IoT tools and platforms. I will talk 25 minutes about the […]