Inductive sensing with our FemtoFET™ and CC1350 wireless MCU

Water and heat meters share multiple system building blocks, such as the metrology sub-system and the application sub-systems, the wireless communications part, the InfraRed optical port or the power solution. In this section, we will cover a new ultra-low-cost, single-chip, LC-sensing solution utilizing the CC1350 wireless MCU and its sensor controller engine. Two external LC-tanks with our FemtoFET™ device each implement two rotation detection sensors, which measure the rotation of a half-metal/half-nonmetal disc, often used in mechanical water meters. The full solution is named the TIDA-01228 reference design and represents the metrology sub-system for an RF-enabled water or heat meter add-on module with inductive sensing.