Many IoT / M2M Cookbook customers asked me for an evaluation kit within the last two years. I launched the first version during M2M Summit in September 2016. In February 2017 the multicellular version came true. The working name is HARduino because it has an Arduino R3 compatible UART interface. HARALD – ALD + duino […]
RF engineers already know that signal propagation characteristics vary according to frequency. In simple terms, signals carried at lower frequencies travel further. Since wavelength equals the speed of light divided by the period of the carrier signal, we can see that low frequency signals have a long wavelength. Long wavelength, low frequency radio waves are […]
Pigeons don’t tweet, they make cooing noises. They don’t wear backpacks either. Usually. Well, say hello to the new breed of backpack wearing, tweeting pigeons that might just save lives. If you live in a city there’s a good chance you’ll be sharing it most days with a large number of pigeons. And generally […]
The IoT-University was launched just one month ago. In just four weeks there are more than 400 students on the course. Students want to learn and to educate them we need more mentors who love to share; we have space for eight more to join us. If you have something to share, join us. Become […]
What is the key difference between the LPWAN technologies? Just watch the 25 minutes video to learn your lesson. If you are interested in your own Weightless P BTS and some Weightless P modules then do not hesitate to drop an email to harald.naumann (at) gsm-modem.de . I will take care that you get your […]
At the end of this week Germany, like a lot of other places in the western world, will slow down. It is Christmas time and we start to celebrate on the 24th of December. Before I start to enjoy this time with family and friends I would like to say thank you for all the […]
Bluetooth Low Energy to cellular gateway/hub – concept 1 BLE to cellular gateway The concept is based on a Smart Module. Smart modules offer all in one. The radio part and the SOM are inside the same module. The two antennas will have a bill of material of USD 0 because both could be PCB […]
For comparison, the Hata Model was used. Hata is the most widely used radio frequency propagation model for predicting the behaviour of cellular transmissions in built up areas. Settings for the simulation on Hata model LPWAN Base Station Height = 30m End-Device Height = 0.5m Simulation results for LPWAN on Weightless P, LoRa and SIGFOX If […]
Tuesday, March 14, 2017, I will compare LPWAN like SIGFOX, LoRaWAN, Weightless P and NB-IoT/LTE-Cat-NB1 at embedded world in Nuremberg. Tuesday, March 14, 2017, 09:30 – 12:30 Session 03/I Connectivity – Wireless Technologies I Program: http://www.embedded-world.eu/program.html 09:30 – 10:00 Comparison of LPWAN Like SIGFOX, LoRaWAN, Weightless P and NB-IoT/LTE-Cat-NB1 Harald Naumann, Tekmodul 10:00 – 10:30 […]
Fundamentally, there really is no such thing as “NB-IoT”. The correct term is “LTE Cat NB1”. This technology is sometimes confused with Cat-M, which is another misnomer. The correct name for “Cat M” is LTE Cat M1. Both these technologies, LTE Cat NB1 and LTE Cat M1 are just subsets of “classic LTE” and are […]
.
.Posts by email
.Posts by RSS
Email to Harald
Harald@Facebook
Harald@Google+
Harald@Linkedin
Harald´s website
IoT/M2M on Twitter