Energy Harvesting Application Circuit
- Author:
Rick Camarillo & Rob Meades
This paper discusses the design and use of a cellular IoT application circuit that is powered from harvested energy. The application combines GNSS-based positioning as well as short range (Bluetooth) and cellular (NB-IoT and LTE-M) communication. The solution developed uses the u-blox SARA-R4 (LTE Cat M1 / NB1) or the u-blox SARA-N2 (LTE Cat NB1) cellular modules, the u-blox NINA-B1 Bluetooth low energy module and applications processor, and the u-blox ZOE-M8 GNSS receiver. In addition there are several sensors for ambient light, UV, motion, temperature, humidity, magnetic detection and air pressure.
While energy harvesting is the focus of this paper, all the techniques described apply just as well to any ultra-low power system operating from a primary battery.
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