Smart Door/Window sensor

The focus of this project is to prove how it is possible to drastically reduce the power consumption(in deep sleep/standby) of battery-powered smart devices by developing a customized power latch. Better design of smart devices would ensure a longer product life cycle.

Power consumption

Measurement range of PPK2

The current was measured with Nordic's power profiler kit , knowing that the current measured is less than the measurement range of this power profiler. I did several tests to verify the accuracy of the data. In any case the accuracy of the data, the consumption would be less than 200nA and this is a very good result considering that a similar device at a power consumption of 6-8uA.

1. Reed switch version

The consumption in deep sleep(POWER LATCH) is the same whether the magnet near the sensor or not.

2. MAGNETIC SENSOR IC(S-5701) version

deepsleep: 300nA

3D Case