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, only one antenna is necessary. An external MCU is also unnecessary for the Quectel BG77. An ARM Cortex A7 with plenty of memory is available. The operating voltage ranges from 2.4 Volt to 4.8 Volt. In idle mode, the Quectel BG77 requires only approx. 2.4 uA. We started the pre-development of the small antennas 12 months ago. Inquiries about the Quectel BG77 Eval-Kit, about small antennas and about developments for small IoT devices are welcome to harald.naumann(at) lte-modem.com
Why I wrote the IoT M2M Cookbook
In my more than 20 years working with a manufacturer and in distribution I gave the same hints and recommendations to developers of wireless applications again and again. In May 2012 I made the decision to write the story that I have to tell weekly to customers in a book. The target is to guideline developers from the idea for an IoT / M2M device to a final product with mass production.