how to find out a central device supports HID input

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Last post
Wed, 2020-09-23 03:48
#1
hugangbin
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how to find out a central device supports HID input

Hi, Dialog

Good to know that DA14531 can be connected with multiple central devices.

We are going to implement a remote based on DA14531 which will be connected with a smartphone an a thirdpart central device.

Here is my question, How can we know which central device supports HID input feature without extra self-defined protocol?

Thanks.

Device:
DA14531
Wed, 2020-09-23 14:39
PM_Dialog
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Joined:2018-02-08 11:03
Hi There,

Hi There,

Thanks for your question and for your interest in our DA14531 BLE solution. Please take a look at theDA14585/DA14586 - DA14531 Multiperipheral Example. This example demostrates how a single peripheral can be connected to more than one centrals. The DA14531 is able to support up to 3 simultaneous connections.

For the initial setup, please read theSoftware Example Setup Using Python Link Scriptdocument.

>>> How can we know which central device supports HID input feature without extra self-defined protocol?

Would it be possible to explain the above question and describe what you would like to accomplish? Do you mean if the which Central includes the HID profile? Please provide more inputs.

Thanks, PM_Dialog

Thu, 2020-09-24 02:18
(Reply to #2)
hugangbin
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Hi,

Hi,

Sorry for my bad expression ability.

As I know, remote plays the HID device role, and smartphone plays the HID host role.

Yes, we want to know which one of thoes two central devices is the HID host.

We can exchange some data between remote and the thirtpart ble device to determin which one is the HID Host, but this may be a complex way.

Is there any easier way to do that?

Thanks.

Thu, 2020-09-24 16:01
PM_Dialog
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Hi There,

Hi There,

The connection is always initiated by the Central, so the Central should support the HID profile, connect to the Peripheral and check is the HID profile is supported.

> > >是啊,我们想知道哪一个其中两个岑tral devices is the HID host.

Are both central a DA14531 SoC?

Thanks, PM_Dialog