From What is the iBeacon Bluetooth Profile I understood the format of iBeacon. In Project #008: GAP Broadcaster it is mentioned that iBeacon is based on GAP Broadcaster approach. However, PSoC Creator doesn't allow me to customize advertisement packet to make iBeacon based on GAP Broadcaster template. How can I do it?
You can create a new adv type packet and use the API CyBle_GapUpdateAdvData() to update advertisement data.
Try the project at:
https://github.com/cypresssemiconductorco/PSoC-4-BLE/tree/master/100_Projects_in_100_Days/Day009_Dynamic_Broadcaster
Related
I need to advertise 2 different sets of data, 31 bytes each. It doesn't look possible when I look at the core specification v4.0.
What I understand when looking a bit further, beacons can be advertised in 3 different channels : 37, 38, 39. LE Set Advertising Parameters Command makes it possible to choose a specific channel as well as all at once.
Is it possible to advertise different data in different channels ?
If it is not possible, the only solution I remain with is changing the advertisement data periodically using LE Set Advertising Data Command.
I would be glad to see a bit insight on performance, stability and power consumption.
Yes, your device can act as several BLE beacons as long as you periodically change the advertising payload. Your suggestion of using LE Set Advertising Data Command is my recommended approach and you don't need to change the advertising channel for this purpose.
In other words, what you can do on your device is set up a timer, and then as soon as the timer expires, you can switch to a different set of BLE data that is being advertised, which will create the affect of your device acting as multiple beacons.
Please see the following links which may be helpful to your question as well:-
Can BLE devices act as beacons
advertise custom service uuid with bluez 5.4x
Linux BlueZ custom Manufacturing Scan Response Data
Bluez BLE peripheral advertise custom characteristic with ADV data
I hope this helps.
In my current project, I am working with iBeacon in the area of IoT. Basically iBeacon works on Bluetooth wireless technology. I am using Raspberry Pi 3 (which is available with in-built wifi and bluetooth). Pi 3 Bluetooth display and detect the iBeacon but not able to do pairing with it and display the following error:
GDBus.Error:org.bluez.Error.AuthenticationFailed
I also tried with bluetoothctl command also but again display the Failed to pair: org.bluez.Error.AuthenticationFailed
error.
Am I missing something? I am able to pair iBeacon with my mobile and windows based lapotop.
Understand that iBeacon is a transmit only Bluetooth LE device. It is Bluetooth LE manufacturer advertisements to send a unique identifier, something you have seen if you have detected it with the Raspberry Pi 3.
But a basic iBeacon device is not designed to be connectable over Bluetooth LE. Some beacon manufacturers may expose a secondary configuration service that is connectable, but this is not universal and if it exists it is entirely outside the beacon spec.
Bottom line: you are not supposed to be able to connect.
If you have a specific model of beacon that does have a config interface, and you want to connect to that, you may want to put that in your question.
I'm planning to replace the Beacon tag of my Bluetooth (BLE)-based localization System with a smartwatch. Therefore, the smartwatch has to be able to advertise bluetooth signals. However I can't find any information about smartwatches using BLE advertising methods. I actually don't want to use an additional smartphone which would be able to advertise. I already found that the iWatch and the Moto 360 are probably not able to advertise.
Does anyone know if there's (or will be) a smartwatch available that is able to advertise BLE signals?
Thanks a lot!
el Baum
Ok, this is not possible for Sony Smartwatch atleast. This is because in order to be able to broadcast a BLE advertisement of your choosing, any given Android device has to be able to support BluetoothAdapter.isMultipleAdvertisementSupported(). Unfortunately, this feature is not available on most Android Wear devices.
If your Android device does support multiple advertisement, then you can create an advertisement packet and use the BluetoothLeAdvertiser object to start advertising.
i know that iBeacon use only advertising channel. which means there is no need connection.
im trying to make my own beacon module which send and receive data.
im curious about what makes the packet in iBeacon format(prefix /UUID / minor/ major/ TX) in communication ?
is it firmware?
let's assume that
when i make my iPhone act as iBeacon , it will send the advertising packet. which means it sends data in iBeacon format. but after turn off the app for iBeacon, i try to use my iphone
to send some files to laptop via Bluetooth low energy mode as usual.
then it will send data in bluetooth standard format. is this right?
given that situation, my iphone can be both iBeacon and just normal phone capable of bluetooth low energy.
i think also the beacon module can be like that. how about the product recently released? like estimote, redbearlab and so on. after connection, do they receive data?
Every iBeacon product works a little differently, but it is common for a product to be connectable for configuration purposes over Bluetooth LE.
Radius Networks' RadBeacon, for example, has firmware that sends out its advertisement as needed to be a standard iBeacon. The same firmware will allow a connection over Bluetooth LE, exchanging data with an external client (the RadBeacon app for iOS). This connectability is outside standard iBeacon functionality, using proprietary techniques that are still part of the larger Bluetooth LE standard.
Your understanding is therefore correct.
Full disclosure: I am Chief Engineer at Radius Networks.
I am trying to read serial data over Bluetooth LE but can't find any code examples for this type of bluetooth and api19. Does any one have an example?
There is no profile defined for serial data communication over Bluetooth Low Energy till now. For this one can use the Bluetooth classic only.
In any case, Android devices can not broadcast for advertising packets. They can only scan the advertising packets. Hence, these devices will be in Central mode only. But can act as either server or client.
For Bluetooth chat related app example one can refer Android SDK as,
sdk/samples/android-19/legacy/BluetoothChat
The above example is based on Bluetooth classic based on RFCOMM channel for serial communication.
Android 5.0 let mobile to be peripheral. So chat will be possible:
https://developer.android.com/about/versions/android-5.0.html
Bluetooth Classic got the SPP profile. This is not how Bluetooth Low Energy works.
In BLE you have 1 or more Services each with 1 or more Characteristics which are basically just bytes in a predefined format which by default can be max 23 bytes.
To send data from one device to another one must be the Master and the other must be Slave.
Android API19 does not support the Slave (Peripheral) role, it seems Google still doesn't understand the importance of Bluetooth Low Energy. It's so much more than just Pulse-readers.
You can send from an Android API19 phone to e.g. an iPhone which can be Slave/Peripheral.
You cannot send from an Android API19 phone to another API19 phone. For this you must use Bluetooth Classic SPP profile.