So I already have a home automation system going on in my appartment. The brain of this system runs on raspberry pi. The software used is node red. Most of the IOT devices use MQTT to communicate with node red and all the logic is implemented in Node-Red it self. I have an RFID card reader, main door unlocker, a night stand device with night light, buttons and a motion sensor. I have an IR receiver to control stuff with an ir remote. Of course I have the light and fan on the system too, using a sonoff touch module. What I didn't have is a security system.
While browsing for contests I saw the one with Infineon's capsense kit and had this idea. All the handles in my home are metal, so they are a perfect candidate for making a capacitive sensor out of. The capsense kit would allow me to do it and then the signal would be sent via MQTT to the node red server to then maybe sound an alarm. I could arm the system when I am sleeping a if some one touches one of the handles, I would be woken up by the buzzer.
This seemed easy in theory but actually hard to implement, because the infineon kit has a learning curve and a lot of features. I am familiar with arduino development environment but this was completely new for me to use a new IDE. As a full time software developer I had little time to give to this project so I couldn't get the Infineon kit to work in time. I will attach whatever progress I have made.
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