This Sensor Will Never Run Out of Power

The IoT (Internet of Things) is great, but power is always a challenge. If there is a mains outlet nearby, then great! If not, things go downhill fast. Replacing batteries every few months is a huge inconvenience and solar only works during the day. To eliminate the worst of both worlds, Juan Flores built the everAliveSensor that will never run out of power.

The name may be a tiny bit misleading, because this build isn’t about any specific sensor. It can work with a wide range of sensors, including a BME680 temperature/humidity sensor, as shown in the demo schematic.

The point of this device is achieving “infinite runtime” with any suitable sensor and a network-connected microcontroller. In an ideal real-world scenario, the user would be able to put an everAliveSensor somewhere with even slight sunlight and then never think about it again.

It overcomes the traditional issues of both solar...

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