In Patras, Greece, they work on smart city technology development using NB-IoT has started. But how can the developers avoid the need for a SIM card and its subscription? Technical needs The smart lighting controller, for example, has been sending one status update message of 40 bytes every five minutes and a message containing energy consumption […]
The antenna is always the key to success for your wireless application. Each antenna has its benefits and drawbacks. The selection of the right antenna at beginning of a development project, or if you are planning the development of a device around the antenna, could save you a lot of money. A: Vertically polarised monopole […]
In 2016, a creative team in Frankfurt had the idea of developing an IoT push button for ordering goods via a cellular module. In principle, something similar to the Amazon Dash button, only using a GSM radio instead of Wi-Fi. A first, and a tricky learning curve for the engineering team. The developers in the […]
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 […]
NB-IoT coverage in NL Ground Control to the #LPWAN shuttle: “Captain N.B. , Wow you leaked the NB-IoT secret of Dutch! Unbelievable, they run 4471 base station tranceivers in band 8 on 41,543 km2 surface. This is 0.929 km2 in average per BTS. This is the best LPWAN BTS density in Europe for sure. Over and […]
NB-IoT module on Arduino shield – text strings to USB Any akorIoT radio adapter consists of a cellular (NB-IoT module or other cellular module), a GNSS module and four sensors. In addition there is a SIM card. In summary there are seven serial interfaces to test. Our test software has 250 lines and two “include […]
Close to 100 German cities got NB-IoT coverage – Ground Control to the #LPWAN shuttle: “Captain N.B. you worked hard today. Within 24 hours, you made a basic scan of the LPWAN coverage in Germany. You found close to hundred cities with NB-IoT coverage. Please be so kind and provide us with some more details […]
As the captain of the space shuttle #LPWAN N.B boldly leads his crew to the outlying regions of the (mostly) nice blue planet called Earth where no man expected to find a wireless network before. Often, the recurring characters of S. and L.W. support him in reaching his mission goal on the proviso that they […]
Some people talk about IoT. My customer do IoT. In this case, it is an IoT device in metering again. The M-Bus Master Unit GSS-134 of Pikkerton is on Quectel GSM module M66 and got a replaceable battery pack. It can run easily without longer installation effort. M-Bus master interfaces: M-Bus Master Unit, 20 Standard […]