IfxRoomOccupancyRadarBLE

Story

Based on the former Idea Remote-Room-Radar meanwhile a PCB has been developed that allows the evaluation of several Infineon sensors. The focus topic is to observe room occupancy (Radar), communicate the status wireless (Bluetooth), and show it e.g. outside at the entrance door (Display).

This project gives the opportunity for embedded 'beginners' to 'play around' with Infineon microcontroller & Infineon sensors, graphics and Bluetooth.

Electronics

Depending on the assembly variant the developed PCB can be used for two purposes:

In-Room occupancy detection

• PSoC6BLE microcontroller for sensor fusion and communication
• XENSIV™ 60GHz radar MMICs (several types are enabled by assembly options)
• Addition/Optional sensors:
• XENSIV™ DPS368 Pressure & Temperature sensor
• XENSIV™ PAS CO2
• XENSIV™ MEMS microphone

Out-Room Display

• PSoC6BLE microcontroller for communication and control
• XENSIV™ 60GHz radar MMICs (several types are enabled by assembly options)
• Display (TFT 480x320 or ePaper 400x300)
• Optional: 6x CAPSENSE buttons

Just the upper part of the PCB needs to be used for the In-Room occupancy observation

while the complete PCB with reduced assembly variant is used for the Out-Room display

Software

The software is developed using Infineon's free-of-charge ModusToolbox

Mechanics

Two cases have been designed using FreeCAD to be used for the In-Room or Out-Room variant. Please feel free to adapt it to your use cases .

Getting started & Demonstration

Let's have a look how it works ...

Summary

Who ever is interested the PCB can be ordered via Aisler.net

Although the system has been developed for a dedicated use case to observe room occupancy it may be used by the implemented features very flexible for much more applications as well.