Question 1

How does the Raspberry Pi presence detector compare to using motion sensors?

Accepted Answer

This detector uses WiFi connections to identify people, which is less invasive but requires devices to be connected. Motion sensors detect physical movement directly, offering more immediate presence but needing hardware installation. The choice depends on whether you prioritize device-based tracking over physical detection and privacy considerations.

Question 2

How to set up the presence detector for multiple users in an office?

Accepted Answer

You need to configure the Raspberry Pi to monitor specific MAC addresses or device names associated with each person. The setup involves listing authorized devices in the configuration files and ensuring they connect to the WiFi network. Refer to the project's wiki or README for detailed steps on managing multiple users.

Question 3

Will this work with any WiFi router?

Accepted Answer

It should work with most routers that allow network monitoring, but compatibility depends on the router's settings and the Pi's ability to sniff packets. Some enterprise or secured routers might restrict access, so check if your network supports packet inspection or promiscuous mode.

Question 4

How accurate is the presence detection?

Accepted Answer

Accuracy is based on device connection events, so it can be affected by devices that auto-connect, sleep modes, or network latency. It's suitable for general occupancy tracking but not for precise timing or scenarios where devices are frequently offline.

Question 5

Can I track specific individuals with this system?

Accepted Answer

Yes, by associating devices with individuals using MAC addresses or device names, but this requires knowing each person's device details. The system tracks when those devices connect or disconnect, so accuracy depends on consistent device usage and network behavior.

Question 6

Is there a way to get notifications when someone arrives?

Accepted Answer

The project focuses on detection and may require extensions for notifications. You can integrate it with custom scripts or third-party services like email or messaging apps to send alerts based on connection events, but this isn't built-in from the README.

Network Presence Detector

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