Quectel BG951 – NB-IoT, LTE-M, GNSS module The Quectel BG951 is based on Altair Semiconductor. The eDRX (extended Discontinuous Reception)/PSM (Power Saving Mode) ensures low power consumption. With a super-low current consumption of approximately 1,5 uA in PSM mode, the Quectel BG951 offers a long operating life of 10 to 15 years on a single […]
Field test: tracking indoor and outdoor In order to demonstrate the tracking of goods and assets across borders, a field test was executed over several days in different countries using different methods of transport. In addition to delivery vehicles and cars, trams and walking were also used. The car was parked in an underground car […]
The idea for the NB-IoT shield with Arduino header was conceived in summer 2016. We then produced the first version of the NB-IoT shield at the M2M Summit in September 2016. The second generation was shown to readers of my IoT/M2M Cookbook in our end of the year mailing and it has proved extremely popular; we […]
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 […]
Please find another close the same messages or questions on BLE indoor localisation to me as below. I get the question again and again at least once a month. It is time for a block post on this topic. What is the recommended way to implement BLE beacons to perform indoor localisation? What is the […]
Android devices and pet trackers for life, not just for Christmas – original blog posted in Nov 2011 As Janis Joplin sang, “My friends all drive Porsches, I must make amends”. Two of my friends own an iPhone and they always buy the latest smartphones. I will “make amends” and skip buying a tablet for […]
Q: I came across a blog of yours some years back. By chance are you still offering assistance with GPS related antenna solutions? If so, we are trying to find a replacement for a Sarantel helical antenna. We need to match or improve upon the performance of the Sarantel product. We are looking into Maxtena’s […]
Last week a big package of antennas reached me. Step by step I will make the description of the antennas public. The picture shows an antenna for GSM and UMTS flying over ground plane. Such an antenna will radiate directional. This is perfect if you plan a people or pet tracker close to human or […]
GSM PIFA antenna flying over ground A picture can tell more than a thousand words. I do not remember how often I have drawn such a sketch at a customer’s office. It is time to change this waste of time and to start with an antenna proposal gallery online. The GSM PIFA antenna is “flying” […]
If you are in GPS tracking business and have customers or plans to deliver to Russia, then it makes sense to have a look on a combined GPS/Glonass module.