Hi, I recently bought 3 bluetooth controlled padlocks.
They come with an app (AppName: ELESION) that runs on your smartphone and can unlock them using bluetooth.
I would like to control them via an arduino instead something like a Wemos D1 Mini or so - my basic question is:
Is there any way I could catch the data that the app sends to the lock to unlock it?
I know and can freely alter the passwords and names for each lock. I assume that the app simply sends some form of the respective password to each lock to make them unlock but I cannot know for sure.
If it the true - then it's not a lock, but a toy. Just like you, this password can be intercepted by any other and then open the lock.
It is most likely that passwords are sent in encrypted form. Moreover, most radio-controlled devices use at least dynamic coding, which means that it makes no sense to intercept these packets - they are different every time and if you resend it - the lock won't open.
But you can try anyway. this is the easiest way to check it.
If you do crack the locks, do let the forum know, so users can be warned not to waste money on these toys.
Maybe read about rolling codes;
https://electronics.howstuffworks.com/gadgets/automotive/unlock-car-door-remote1.htm
If you want to use Arduino UNO, then you also have to add an HC-05 bluetooth module and pair it with your app. Because Arduino UNO does not have an in-built bluetooth module.
Thanks everyone for your helpful tips on how I could go about catching the bluetooth signal - which was my question.
If the locks would use rolling codes - which I also think is very likely - is there no way to hack them?
I mean this is the Device Hacking forum after all - I thought if anyone might know then here
I expect that the designers producing Bluetooth locks would have heard of Arduinos, so if it was easy to use an Arduino to hack one of their locks they would do something about it.
I'm not sure which locks you have in your mind for this task. If you use solenoid door locks, you can easily control these with arduinos and other microcontrollers.
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