Scanning BLE beacons
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But what data do you want to read? Manufacturer data? Device UUID? Address?
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
@sierdzio said in Scanning BLE beacons:
But what data do you want to read? Manufacturer data? Device UUID? Address?
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
OK. I understand. I can use info directly like info.name, but how do I get data (no info.data).
Yes I want to se all beacon raw data - payload. I need no services. It's a remote sensor sending me temperature, humidity, pressure, etc. -
But what data do you want to read? Manufacturer data? Device UUID? Address?
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
@sierdzio said in Scanning BLE beacons:
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
not with beacon, beacons are not connectable. And the Qt Api gives no way to identify that.
what the op is looking for should be in
https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1 -
It's been a long time since I've done it, sorry I don't remember the details. Check the example docs above, it explains how to connect to various services and characteristics, then you can start receiving the data.
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@sierdzio said in Scanning BLE beacons:
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
not with beacon, beacons are not connectable. And the Qt Api gives no way to identify that.
what the op is looking for should be in
https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1@J-Hilk said in Scanning BLE beacons:
@sierdzio said in Scanning BLE beacons:
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
not with beacon, beacons are not connectable. And the Qt Api gives no way to identify that.
what the op is looking for should be in
https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1No. It has to get a payload. Every beacon has a payload (20 bytes) of my own data. App. I wrote on my phone (Android) gets all beacons and I see my payload too.
Wat's the point to get a beacon? To see it's name, rssi, and other fields ? I need the data it sends. -
@J-Hilk said in Scanning BLE beacons:
@sierdzio said in Scanning BLE beacons:
Or you want to read the data that the device is sending? To do that, you need to connect to it first. https://doc.qt.io/qt-5/qtbluetooth-lowenergyscanner-example.html#connecting-to-services
not with beacon, beacons are not connectable. And the Qt Api gives no way to identify that.
what the op is looking for should be in
https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1No. It has to get a payload. Every beacon has a payload (20 bytes) of my own data. App. I wrote on my phone (Android) gets all beacons and I see my payload too.
Wat's the point to get a beacon? To see it's name, rssi, and other fields ? I need the data it sends.@jenya7 I'm not sure to what you're replying ?
I said, your payload can be accessed via https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1
I do it too.
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@jenya7 I'm not sure to what you're replying ?
I said, your payload can be accessed via https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1
I do it too.
@J-Hilk said in Scanning BLE beacons:
@jenya7 I'm not sure to what you're replying ?
I said, your payload can be accessed via https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1
I do it too.
I see. But info has no such field.
void BT_DEVICE::AddDevice(const QBluetoothDeviceInfo &info) { info. //no manufacturerData } -
This function was introduced in Qt 5.12.
Maybe you are using older Qt version?
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@J-Hilk said in Scanning BLE beacons:
@jenya7 I'm not sure to what you're replying ?
I said, your payload can be accessed via https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1
I do it too.
I see. But info has no such field.
void BT_DEVICE::AddDevice(const QBluetoothDeviceInfo &info) { info. //no manufacturerData }@jenya7 said in Scanning BLE beacons:
@J-Hilk said in Scanning BLE beacons:
@jenya7 I'm not sure to what you're replying ?
I said, your payload can be accessed via https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1
I do it too.
I see. But info has no such field.
no, it does not, and here you come in and either
- expand DeviceInfo class that comes with the BTLE example and you're usingor
- create your own interface class that wraps around QBlueToothDeviceInfowritten before the edit of
void BT_DEVICE::AddDevice(const QBluetoothDeviceInfo &info)
{
info. //no manufacturerData
}@sierdzio is probably right, what version are you using?
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@jenya7 said in Scanning BLE beacons:
@J-Hilk said in Scanning BLE beacons:
@jenya7 I'm not sure to what you're replying ?
I said, your payload can be accessed via https://doc.qt.io/qt-5/qbluetoothdeviceinfo.html#manufacturerData-1
I do it too.
I see. But info has no such field.
no, it does not, and here you come in and either
- expand DeviceInfo class that comes with the BTLE example and you're usingor
- create your own interface class that wraps around QBlueToothDeviceInfowritten before the edit of
void BT_DEVICE::AddDevice(const QBluetoothDeviceInfo &info)
{
info. //no manufacturerData
}@sierdzio is probably right, what version are you using?
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@J-Hilk said in Scanning BLE beacons:
@sierdzio is probably right, what version are you using?
It is 5.11.3
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@jenya7 If you follow the link from @J-Hilk you will see that you need Qt >= 5.12 for that method.
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@jsulm said in Scanning BLE beacons:
@jenya7 If you follow the link from @J-Hilk you will see that you need Qt >= 5.12 for that method.
Wow. On Linux the latest available from repository is 5.11.3.
@jenya7 said in Scanning BLE beacons:
On Linux the latest available from repository is 5.11.3
You can install newer versions using Qt Online Installer...
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@jenya7 said in Scanning BLE beacons:
On Linux the latest available from repository is 5.11.3
You can install newer versions using Qt Online Installer...
@jsulm said in Scanning BLE beacons:
@jenya7 said in Scanning BLE beacons:
On Linux the latest available from repository is 5.11.3
You can install newer versions using Qt Online Installer...
I see no options for Linux there.
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@jsulm said in Scanning BLE beacons:
@jenya7 said in Scanning BLE beacons:
On Linux the latest available from repository is 5.11.3
You can install newer versions using Qt Online Installer...
I see no options for Linux there.
@jenya7 And what is this: https://www.qt.io/download-thank-you?os=linux ?
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@jenya7 And what is this: https://www.qt.io/download-thank-you?os=linux ?
@jsulm said in Scanning BLE beacons:
@jenya7 And what is this: https://www.qt.io/download-thank-you?os=linux ?
sorry, may be stupid question - how do I run it?
tied this waysudo /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 1: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: nC@�!@8: not found /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 1: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: ELF: not found /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 2: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: @#: not found /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 3: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: Syntax error: "(" unexpected -
chmod +x /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.runDo not install as
root. -
@jsulm said in Scanning BLE beacons:
@jenya7 And what is this: https://www.qt.io/download-thank-you?os=linux ?
sorry, may be stupid question - how do I run it?
tied this waysudo /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 1: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: nC@�!@8: not found /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 1: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: ELF: not found /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 2: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: @#: not found /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 3: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: Syntax error: "(" unexpected -
@jenya7 No need for sudo.
# First make it executable chmod u+x /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run # Run /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run@jsulm said in Scanning BLE beacons:
@jenya7 No need for sudo.
# First make it executable chmod u+x /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run # Run /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.runchmod u+x /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run
sudo /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run
/home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 1: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: nC@�!@8: not found
/home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 1: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: ELF: not found
/home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 2: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: @#: not found
/home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: 3: /home/pi/Downloads/qt-unified-linux-x64-4.2.0-online.run: Syntax error: "(" unexpectedI tried also Properties-> Execute : Anyone
Then Double click -> Execute in terminalIt's linux-x64. I'm not sure Raspbian is 64 it's 32 as far as I know.
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Raspbian is ARM, so it won't work anyway.
