Hey guys!
I've started gaining more interest in electronics and circuits and I am stuck with a project.
I live in an apartment on the first floor. When somebody comes over and rings the bell I have to walk to the door of my apartment and press a button which opens the front door of the complex for a few seconds. I want to automate this by wiring an rf controlled arduino nano so I can wirelessly press the button.
The system that's in place now is a Siedle BTS 850-02 and I can remove the casing very easily. The circuit looks like this: Front | Back
Now I know that connecting the contacts below a button will open the door - that works perfectly.
As I said I got stuck on powering the arduino. The Ta and Tb Pin have 27.5v DC connected to them but if I use a DC DC step down circuit, the phone is no longer able to talk to the BUS system. My question is if there is any way I could connect the arduino to the phone circuit in order to power it without batterys.
Can you guys help me out with this or maybe give me a few tips on what I should do or look out for?
Thanks a lot!
I've started gaining more interest in electronics and circuits and I am stuck with a project.
I live in an apartment on the first floor. When somebody comes over and rings the bell I have to walk to the door of my apartment and press a button which opens the front door of the complex for a few seconds. I want to automate this by wiring an rf controlled arduino nano so I can wirelessly press the button.
The system that's in place now is a Siedle BTS 850-02 and I can remove the casing very easily. The circuit looks like this: Front | Back
Now I know that connecting the contacts below a button will open the door - that works perfectly.
As I said I got stuck on powering the arduino. The Ta and Tb Pin have 27.5v DC connected to them but if I use a DC DC step down circuit, the phone is no longer able to talk to the BUS system. My question is if there is any way I could connect the arduino to the phone circuit in order to power it without batterys.
Can you guys help me out with this or maybe give me a few tips on what I should do or look out for?
Thanks a lot!