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 […]
April 2014 @ M2M Journal http://www.m2m-alliance.com/fileadmin/user_upload/pdf/m2mJournal/140402_M2M_Journal_low.pdf The example of a locating device based on cellular modules (GSM, HSPA, LTE) and GNSS modules (GPS, Glonass, All Galileo) explains how to develop a complex IoT / M2M-device with embedded antennas. The person, who has to develop a telemetry device, ignores the part of GNSS. The 20 years […]
Be aware that a GSM module will charge up to 2 Ampere peak current during 2 Watt TX power Take care that your power supply will be able to drive the current peaks. Have a look on short PCB tracks in right width. And have a very close look on a capacitor with low impedance […]
Q: I am trying to figure out if it is possible to design a reasonable quad band on a PCB that has a total overall size (ground plane plus antenna) of about 60x30mm, using a GSM module. Have you ever tried something around this size? A: Some chapters out of my IoT M2M book: 7 […]
Wer nun auch aus dem iBeacon, Wearable und IoT-Kuchen ein Stück schneiden möchte erhält die Gelegenheit: Bluetooth Low Energy Eval-Kit ca. Euro 110 Kostenfreier Quelltest zum Kit für div. Anwendungen (3 Achsen-Beschleunigung, Temperatur, Luftfeuchtigkeit, …) Kostenfreier Quelltext für die App auf iOS und Android Kostenfreie Gerberfiles und Schaltbild des Kits im Download Preiswertes Anpassnetzwerk (7 […]
Q: I have some Bluetooth Low Energy beacons that help the phone deduce its location. I want my app to run in the background in Low Energy Mode, listening for messages sent by the beacons.I tried this on a Nexus 4 running Android 4.3 but It is consuming as much power as a regular Bluetooth […]
The translation to English will follow later Das Ziel des Projektes ist ein multifunktionales Kit zur Entwicklung von M2M IoT Applikationen auf Basis von Linux und Android. Im Prinzip ein Rasberry Pi für Erwachsene mit GSM-, HSPA- oder LTE-Modul. Im Gegensatz zum Rasberry Pi kommen nur Industriebauteile zum Einsatz, welche jeder dann in kleinesten Mengen […]
Is it a Pi for adults or a M2M / IoT eval kit? All parts used on the are available for everybody without a MOQ All parts used are industrial componets The cellular antenna is descripted in detail The single PC will boot one three differentLinux builds or one Android build M2M IoT eval kit […]
With Bluetooth 4.1 we will get an IP layer. If we get IP, then we shall get TCP/IP and UDP/IP as well. A Home Automation Profile is still missing. The only option right now is to use a proprietary Bluetooth profile. If we follow the CoRE working group then will get framework for a limited […]
The low power variant of Bluetooth is commonly specified in revision 4.0 of the Bluetooth specifications and commonly refered to as Bluetooth 4.0. This document describes how IPv6 is transported over Bluetooth Low Energy using 6LoWPAN techniques. Read more here: http://www.linkedin.com/groupItem?view=&gid=3196502&type=member&item=60284780&trk=groups_search_item_list-0-b-ttl&goback=.gna_3196502 And the feedback on the posting: > This seems a remarkably good way of […]