Making Xiaomi Motion Sensor a Super Motion Sensor

Increasing the reporting interval on a device, in this case by 24 times, potentially does three things:

  1. as already mentioned, it can decrease battery life

  2. the increase in chattiness might cause other messages on your network to have to be Resent, or even to be lost altogether. Over time, this can cause a perceived degradation in QOS ( Quality of service) as it may seem that the network as a whole is slower or not processing all messages.

Whether you will get hit with this or not depends very much on the specifics of your own layout. How many devices do you have? What parents/repeaters are they using? How chatty are the other devices? Etc.

  1. By trying to get around the manufacturer’s intended design, you may be throwing other aspects of the engineered design off-balance. In particular, increasing the reporting frequency may change the heat distribution of the device and cause overheating which eventually either affects the life of the device or potentially leads to shorting.

The zigbee home automation profile is intended for tiny messages sent infrequently. If you want near real-time reporting, you might want to take a look at a topology designed for that kind of load, such as Wi-Fi.

Submitted with respect.

1 Like