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 […]
Quectel BG770 – NB-IoT, LTE-M, GNSS module The Quectel BG770 is based on the Altair Semiconductor ALT1250. The eDRX (extended Discontinuous Reception)/PSM (Power Saving Mode) ensures low power consumption. With a super-low current consumption of approximately 3 uA in PSM mode, the Quectel BG770 offers a long operating life of 10 to 15 years on […]
Questions about radio certification will be answered in our LPWAN and BLE seminars. About 1/3 of the time we explain how to certify wireless IoT devices. The wireless part is only a small part which has to be tested according to RED. Question about certification and antenna Q: I have a question for you. It […]
akorIoT is a portmanteau word from “akor” and “IoT“. “Akor” is the ancient Celtic word for “open”. The goal of the akorIoT SensPRO was to create an open platform similar to the idea of a Programmable Logic Controller (PLC). As with a PLC the programmability, storage of the program in memory and the execution of […]
In the download links you will find the data sheets for the NB-IoT / LTE-M modules Quectel BG77 and BG95. The rough differences to BG96 have been highlighted in color. The fact that a BF77 requires an area of only 14 mm x 15 mm is not to be mentioned. I have marked that there […]
It’s time to switch to NB-IoT and LTE-M. With the Quectel BG77, anyone can now develop his or her own wristwatch with a cellular radio. With dimensions at only 14 mm x 15 mm, building a locating device in a matchbox is now possible. Since GNSS and cellular can be connected to one antenna interface, […]
There is no reference for antennas on extremely small boards in small packages. Cellular chip antennas of different manufacturers all have a reference ground plane of approx. 45 mm +/- 10 mm x 100 mm +/- 20 mm. Nobody can cheat the physics. The length of the PCB influences the return loss. This is documented […]
The comparison of the range of a LoRa module with 2400 MHz, Bluetooth long range modules and LoRa 868 MHz modules shows that BLE long range is not a real long range. LoRa 2400 MHz with SF12 is not much worse than LoRa 868 MHz. LoRa 2400 MHz is not subject to any duty cycle. […]
SIM on chip or eSIM cards do the exact same job as a normal IoT SIM card. Neverthelesss, eSIM cards are permanently stored inside a device. An eSIM is usually attached by soldering to the PCB. eSIMs prevent people from tampering with the device or changing the device it sits in. This helps enhance the […]
The new ultra-compact BC68 Narrowband Internet of Things (NB-IoT) module has same footprint as the M66 GSM/GPRS module. NB-IoT module features at a glance Dimensions: 17.7 mm × 15. 8mm × 2.3 mm Pin-compatible with GSM module M66 Frequency bands: B1, B3, B8, B20, B28 Communication speed: UL: 62.5kbps by multi-tone 3GPP release 14 […]