Application Note

This application note provides a design recipe for dependable solar operation of ORB/QUAD devices. It starts with an energy budget—measuring average current in sleep, measurement, and transmit states—and shows how interval choices and batching impact daily consumption. Panel and battery sizing worksheets are explained, including seasonal derating, temperature effects, regulator efficiency, and shading margins. Example deployments illustrate how to right‑size hardware for temperate versus high‑latitude sites. The note covers firmware settings for low‑power modes, conditional sends, and peripheral power rail control (e.g., sensor warm‑up only when needed). Wiring guidance addresses cable gauge, fusing, surge protection, and earthing for outdoor installations. A troubleshooting section outlines symptoms of under‑sized arrays, brown‑outs, and intermittent reboots, with corrective actions. Following these practices yields year‑round reliability with minimal maintenance, even for sensors requiring brief but higher‑current warm‑up cycles.

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