I have searched everywhere but I cannot seem to find what profile or (custom) services are used to connect a ble device to a Google home. like a smart lock or smart lighting for example. Can anyone point me in the right direction? There must be some protocol specification somewhere for ble devices connected to google home?
I am asking specifically about ble, not bluetooth classic.
We are developing a bluetooth 5 enabled device and are looking into the effort it will take to support google home/assistant.
Thank you.
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I am trying to build a system with a raspberry pi that allows clients access into a building depending on their membership status. Right now, it uses QR codes, but I want to know if it is possible to add a feature where it uses some technology like NFC or RFID or Bluetooth to detect their phone or RFID card from at least a foot away and confirm they have a membership.
Someone told me I could use RFID, but I am only aware of that being used in short-distance applications, like a card on a hotel door. I am not sure about Bluetooth either, because the phone would have to connect to the pi first, right? Maybe there is something I don't know about. So please offer any suggestions. Thanks
I think bluetooth does good work for tracking user. Since it's the best to handle large distances than NFC and RFID these two technologies are used for low range scenarios, check this link.
In addition, you can check distance(using Proximity and RSSI) and membership status as well. but you need to know how to handle bluetooth connectivity with raspberry pi check this link. as well create an app on that mobile phone to use Bluetooth (depending which OS you're using for Android, iOS).
Regards,
I have a Raspberry Pi that acts as a BLE peripheral. I want to add Apple's HomeKit Accessory Protocol (HAP) to the Raspberry Pi's BLE code, to control the BLE device using Homekit. I would like to avoid implementing HAP over the internet.
The closest resource I found is https://gist.github.com/KhaosT/6ff09ba71d306d4c1079. However, this gist makes it seem like there are many unknowns with that process.
Does anyone know if this is possible? If so, any info or resources would be greatly appreciated. Thanks!
As mentioned at https://developer.apple.com/homekit/ under Accessory Developers, you need to first sign up for MFi and then you will get access to all the resources you need in order to implement homekit. All source code you can find publicly online is against Apple's license since they prohibit public redistribution of documentation and source code of implementations.
My Chromecast v2 shows up as an undefined Bluetooth device. Attempts to connect, however, have not been successful. This is most probably due to a secret pairing PIN.
Oddly, nowhere can I find documentation of this feature. Why wouldn't Google mention Bluetooth connectivity?
Can anyone explain what Chromecast uses Bluetooth for and how to connect with it? Eventually, I'd like to connect it with a Bluetooth audio receiver on my HiFi... (I know about external Bluetooth transmitters, I'd like to use the internal one, however, if possible.)
That is for internal use, for example setup, etc and doesn't have any profiles that can be useful to developers, nor is intended to be used by developers.
I'm researching iBeacons. Can I connect to iBeacons while my Bluetooth is invisible (to be protected from hacks)?
I don't have beacons to test myself and can't find any clear explanation online.
iBeacons connect to mobile phones using Bluetooth, so it is essential to have that turned on. You also need to have installed an app with iBeacon support in order to receive communication from them.
If you'd wish to use a solution that does not utilize Bluetooth, you could try out IndoorAtlas. It's an indoor navigation technology based on Earth's geomagnetic fields. It's also completely hardware-free solution, just requires you to collect fingerprints in the area you are going to use for your project.
Three points:
iBeacon technology does not rely on a bluetooth connection to your phone. Beacons are one way transmitters. They do not listen to or otherwise receive any info from your device. Beacon technology following this model is inherently privacy friendly.
Mobile devices cannot detect Bluetooth beacons with the Bluetooth radio turned off. Sorry, it is just not possible.
Properly built beacon apps will not expose your mobile device's Bluetooth info because they are receive only. Of course, other apps on your phone might use bluetooth for other purposes, so your best bet is to audit apps using bluetooth and remove any that are not doing what you want.
I just bought some beacons and tested that, The answer is YES. it is possible to read beacons mac addresses while using the phone's Bluetooth connection as invisible. Using this you will get access to your beacon in any open place without getting hacked through Bluetooth.
Thanks all for your answers.
I'm currently working on a project for an interactive visitor centre in Laguna Beach, CA.
There are many touchscreen devices around the space, which we are developing some cool software for, however one of the client requests is to allow visitors to transfer image, pdf and video files from an interactive coffee table touchscreen onto their phone.
The client has seen this on YouTube/CES etc.. You know, where someone puts a phone on a the interactive surface and then magically swipes images onto the phone from the screen.
Of course, if the visitor had a custom app on their phone, and was already on the same WiFi this would not be so much of a problem. I suspect this is what happens on these magic demos that we see.
In our situation, we don't want the visitor to download an app really, we just want the easiest solution and experience for the visitor. We have a public WiFi available to us, and we can install an NFC device on the touchscreen and the touchscreen also has bluetooth.
My ideal scenario would be for the user to pop their NFC enabled phone on the table, the table recognises it, pairs with BT or WiFi and away we go! I'm not sure how practical this is though having researched around. Clearly thats not going to work on an iPhone. I don't mind a couple of mechanisms i.e. one for Android/other NFC phones and one for iPhone.
Does anyone have any experience of this kind of thing and suggestions of how to handle it?!
Here's a mock up of our 32" Coffee Table touchscreen just for some context
Thanks for reading through and having a think :-)
I know that there is standardized way to pair Bluetooth device using NFC tag. I think this is the best solution for you. The authority that is standardizing this format is called NFC Forum. You can find more info about the topic in this document: Bluetooth Secure Simple Pairing Using NFC