In this tutorial we will show how to build low power NRF24L01 Arduino door/window sensor.
Sensor has low power consumption. 2AA batteries could last at least between 5-10 years. In my test case battery drops for 1% in 43 days. In theory it means 100% in 4300 days, which is about 12 years. Power consumption of this sensor is so low that I'm using wasted batteries from electronic toys and sensor still work. Sensor reports battery voltage back to EasyIoT Server.
Door/window sensor in EasyIoT Server
- Low power Arduino (arduino low power sensor)
- 2 AA battery holder
- 1M resistor
- reed magnetic window/door switch
See buying guide at the end of tutorial.
Check also EasyIoT Cloud ESP8266 door/window sensor.
See more tutorials at http://iot-playground.com/build
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