Energy Harvesting Air Quality Beacon

This solution enables the monitoring of air quality, temperature and humidity via a Bluetooth^® Low Energy (LE) beacon that operates day and night with a small solar cell. The beacon can be sized so small that it can be easily attached to walls and pillars.

The RE01B 32-bit microcontroller in this solution features ultra-low power and high-speed operation with an Arm^® Cortex^®-M0 core that integrates Bluetooth 5.0. And, the ISL9122A buck-boost regulator, featuring an extremely low quiescent current consumption, supplies adequate voltage to sensors.

System Benefits​:

• Battery maintenance-free, realized by optimized power control with the RE01B and ISL9122A.
• Operates day and night only with a harvester such as solar or a rectenna.
• Generates a Bluetooth LE beacon to monitor air quality, temperature and humidity with a smartphone.
• A ZMOD4410 indoor air quality sensor enables the display of eCO₂ which can be used for alerting a crowded environment of the risk for COVID-19.

Target Applications:

• Air quality beacons
• Air quality monitors
• Air conditioners
• Healthcare
• Energy harvesting

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