HomeSpecialUltra-Low Power Always-On Sensor IC 

Ultra-Low Power Always-On Sensor IC 

What if IoT devices stop checking constantly and act only when needed? A new chip cuts energy use, extends battery life, and changes sensing.

The nPZero IC is in volume production
The nPZero IC is in volume production

OEMs are moving from evaluation to high-volume deployment of battery-constrained and energy-harvesting IoT products, as reducing power use becomes critical without lowering sensing performance.

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nPZero addresses this by changing how sensor data is handled. In traditional IoT designs, the microcontroller (MCU) must “wake up” frequently just to poll sensors—burning energy even when no critical event has occurred. The nPZero PSIC changes this power profile by taking control of sensor operations. It powers down the host MCU entirely while autonomously handling the configuration and data reading from up to four sensors. The host is only woken up when user-defined rules or thresholds are met, with system energy consumption reduced by up to 90%.

The product is designed for OEMs, IoT device makers, embedded system designers, and engineers working on battery-powered or energy-harvesting systems. It is especially useful for teams building remote or hard-to-access devices where frequent battery replacement is not practical. Using nPZero, they can design systems that continuously monitor environmental or operational conditions without keeping the MCU active. They can define rules at the sensor level—such as temperature limits, motion thresholds, or vibration patterns—and ensure the system responds only when required. This allows them to build smarter sensing systems that react to events instead of constantly checking for them.

This shift has a clear impact across smart agriculture, industrial monitoring, and asset tracking. Devices can stay in the field longer with less maintenance. In a baseline reference test involving a wireless MCU, temperature sensor, and accelerometer, the nPZero significantly reduced current consumption compared to standard polling methods.

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The platform also supports faster deployment. The nPZero Configurator provides a graphical GUI to adjust settings without deep manual coding. Automatic API generation reduces bring-up effort and software complexity. Development kits and samples are available for immediate shipping.

As energy efficiency becomes a core requirement in IoT, nPZero provides a scalable, hardware-native solution to the “battery life vs. sensing frequency” trade-off.

Click here for the original announcement.

Nidhi Agarwal
Nidhi Agarwal
Nidhi Agarwal is a Senior Technology Journalist at Electronics For You, specialising in embedded systems, development boards, and IoT cloud solutions. With a Master’s degree in Signal Processing, she combines strong technical knowledge with hands-on industry experience to deliver clear, insightful, and application-focused content. Nidhi began her career in engineering roles, working as a Product Engineer at Makerdemy, where she gained practical exposure to IoT systems, development platforms, and real-world implementation challenges. She has also worked as an IoT intern and robotics developer, building a solid foundation in hardware-software integration and emerging technologies. Before transitioning fully into technology journalism, she spent several years in academia as an Assistant Professor and Lecturer, teaching electronics and related subjects. This background reflects in her writing, which is structured, easy to understand, and highly educational for both students and professionals. At Electronics For You, Nidhi covers a wide range of topics including embedded development, cloud-connected devices, and next-generation electronics platforms. Her work focuses on simplifying complex technologies while maintaining technical accuracy, helping engineers, developers, and learners stay updated in a rapidly evolving ecosystem.

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