HID Android/Iphone

RE: HID Android/Iphone

Prasad — Tue, 23 Jan 2018 08:19:37 GMT

Hi @Hung Bui,

I want to use volume controls but with SDK12. Is there a sample code available?

RE: HID Android/Iphone

letter57 — Wed, 09 Mar 2016 14:24:45 GMT

Hi Hung Bui: Thanks for modify the example. I have tested the code. It works. Thank you very much.

RE: HID Android/Iphone

Hung Bui — Wed, 09 Mar 2016 12:57:31 GMT

Hi letter57,

Yes, I tested with the example. But I didn't test to turn it off and on on the first connection ( I disabled bluetooth on the phone instead). And yes, another bug :P , m_bonded_peer_handle should be updated when DM_EVT_SECURITY_SETUP_COMPLETE in device_manager_evt_handler(). I also updated the DISCONNECTED event so that it will not disable the button and advertise after disconnected. I attached the updated version in the answer.

RE: HID Android/Iphone

letter57 — Tue, 08 Mar 2016 16:27:09 GMT

Hi Hung BUi: I havd modified DM_GATT_CCCD_COUNT to 4 instead of 3. I tried the sample code 『github.com/.../nrf51_ble_app_hids_kbd_consumercontrol 』. It does not improve the problem! Do you try the sample code? I have tried the other sample code. it relly improve the problem. Maybe can have a look at 『devzone.nordicsemi.com/.../』

RE: HID Android/Iphone

Hung Bui — Tue, 08 Mar 2016 10:01:21 GMT

@Epasta, @letter57: Thanks for reporting, it was a bug in the device_manager_cnfg.h file. If you modify DM_GATT_CCCD_COUNT to 4 instead of 3. It should work. You may also want to start advertising after disconnection, also enable a button to erase bonding information if it's full. I will ask the developer to update the github repo.

RE: HID Android/Iphone

Epasta — Mon, 07 Mar 2016 14:28:33 GMT

Hi Hung Bui, i have seen the same problem that LETTER57 have described above Regards Enrico

RE: HID Android/Iphone

letter57 — Sun, 28 Feb 2016 10:08:49 GMT

Hi Hung Bui: I am using the example that you shared. I programmed to nRF51 DK, the first time the device is connected to mobile phone.It works, but if i turn off the nRF51 DK and then turn it on.it is connected but it cound't control any more. I don't know what's problem. If you know the problem, could you point the problem?

RE: HID Android/Iphone

Hung Bui — Thu, 28 Jan 2016 08:47:36 GMT

No, it's with SDK 9.0 and S110 v8.0 or S130 v1.0. If you want the earlier version , please click on Commits

RE: HID Android/Iphone

letter57 — Wed, 27 Jan 2016 16:11:36 GMT

Hi Hung Bui: I downloaded the example and programmed to nRF51 DK, It didn't Work. Let me check something...it still use s110 v7.1 and SDK v6.1? I found you have updated project to SDK9...

RE: HID Android/Iphone

Epasta — Fri, 17 Jul 2015 09:42:13 GMT

Thanks a lot for the reply! i will post the question on mbed website

RE: HID Android/Iphone

Hung Bui — Fri, 17 Jul 2015 09:28:56 GMT

@Epasta:

I'm not very familiar with the code on mbed. But for the consumer control HID report , what we do is to just notify the button pressed (0xE9 for volume up is already defined in the report) based on the position of the entry in the report. You can find the define:

typedef enum
{
    RELEASE_KEY                     = 0x00,
    CONSUMER_CTRL_PLAY              = 0x01,
    CONSUMER_CTRL_ALCCC             = 0x02,
    CONSUMER_CTRL_SCAN_NEXT_TRACK   = 0x04,
    CONSUMER_CTRL_SCAN_PREV_TRACK   = 0x08,
    CONSUMER_CTRL_VOL_DW            = 0x10,
    CONSUMER_CTRL_VOL_UP            = 0x20,
    CONSUMER_CTRL_AC_FORWARD        = 0x40,
    CONSUMER_CTRL_AC_BACK           = 0x80,    
} consumer_control_t;

So when we want to send "volume up", we send the notification of the characteristic with value = 0x20 (not 0xE9) (match with command number 6 in the list).

I would suggest you to also post the question on mbed website.

RE: HID Android/Iphone

Epasta — Thu, 16 Jul 2015 15:09:40 GMT

when i click the button i sniffer that Report ID: -1 and Report Type: Reserved [-1] but in the KeyboardReportMap[] i've implemented how you can see written above

RE: HID Android/Iphone

Epasta — Thu, 16 Jul 2015 14:42:42 GMT

The compiler is on the web: developer.mbed.org/.../; the Example code name is BLE_HIDKeyboard

RE: HID Android/Iphone

Epasta — Thu, 16 Jul 2015 14:04:40 GMT

const uint8_t KeyboardReportMap[] = {
0x05, 0x0C, // Usage Page (Consumer) 0x09, 0x01, // Usage (Consumer Control) 0xA1, 0x01, // Collection (Application)... ...0x09, 0xEA, // Usage (Volume Down) 0x81, 0x06, // Input (Data,Value,Relative,Bit Field) 0x09, 0xE9, // Usage (Volume Up) 0x81, 0x06, // Input (Data,Value,Relative,Bit Field) ...

When i press the butto1 on nrf51 i do this: Hid.updateReport(0xE9, 0x00);

The value is sent at the correct characteristic (2a4a), but the volume doesn't work

RE: HID Android/Iphone

Hung Bui — Thu, 16 Jul 2015 13:10:47 GMT

@Epasta: Could you point me to the example you based your code on ? Note that to be able to control the volume, you should declare your HID report as "Consume Control" instead of normal Keyboard. Please refer to the code provided in the git hub example.

RE: HID Android/Iphone

Epasta — Thu, 16 Jul 2015 10:40:21 GMT

I don't use keil but i use mbed compiler,

RE: HID Android/Iphone

Hung Bui — Thu, 16 Jul 2015 09:42:34 GMT

@Epasta: I'm not sure 0xE9 is the correct key you should send. But you can have a look at this example, pressing button 3 will send a volume up and button 4 volume down.

It should be used with S110 v7.1 and SDK v6.1.

Update 09Mar2016, there are some bug with the github example, we will update the repo. For now you can use this project (SDK9.0): nrf51_ble_app_hids_kbd_consumercontrol-master.zip