Ideal packaging for remote sensors. I built a solar powered tipping bucket rain gauge. Solar panel and integrated charging circuit support lipo charging. The cube goes into a deep sleep until the bucket tips over. The magnet then causes the reed switch to close, causing an interrupt to wake up the cubic cell. It then forwards the event to the LoRa receiver at my house, which processes the event. Then he falls back into a deep sleep. 4 components!
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