iPhone 12 Pro iOS 14.7.1 - no devices in the list

[feed4rz]

I am using ESP WROOM 32 DEVKIT V1 and when I run the program the device does not appear in the list of bluetooth devices on my iPhone.

esp logs

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:6724
load:0x40078000,len:14812
load:0x40080400,len:3784
0x40080400: _init at ??:?

entry 0x40080694
I (27) boot: ESP-IDF v4.4-dev-3235-g3e370c4296 2nd stage bootloader
I (27) boot: compile time 11:09:35
I (27) boot: chip revision: 1
I (31) boot_comm: chip revision: 1, min. bootloader chip revision: 0
I (38) boot.esp32: SPI Speed      : 40MHz
I (43) boot.esp32: SPI Mode       : DIO
I (47) boot.esp32: SPI Flash Size : 4MB
I (52) boot: Enabling RNG early entropy source...
I (57) boot: Partition Table:
I (61) boot: ## Label            Usage          Type ST Offset   Length
I (68) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (76) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (83) boot:  2 factory          factory app      00 00 00010000 00100000
I (91) boot: End of partition table
I (95) boot_comm: chip revision: 1, min. application chip revision: 0
I (102) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=20094h (131220) map
I (158) esp_image: segment 1: paddr=000300bc vaddr=3ffbdb60 size=04a30h ( 18992) load
I (166) esp_image: segment 2: paddr=00034af4 vaddr=40080000 size=0b524h ( 46372) load
I (185) esp_image: segment 3: paddr=00040020 vaddr=400d0020 size=807cch (526284) map
I (376) esp_image: segment 4: paddr=000c07f4 vaddr=4008b524 size=0c5e0h ( 50656) load
I (397) esp_image: segment 5: paddr=000ccddc vaddr=50000000 size=00010h (    16) load
I (409) boot: Loaded app from partition at offset 0x10000
I (409) boot: Disabling RNG early entropy source...
I (420) cpu_start: Pro cpu up.
I (421) cpu_start: Starting app cpu, entry point is 0x4008128c
0x4008128c: call_start_cpu1 at /Users/feed4rz/esp/esp-idf/components/esp_system/port/cpu_start.c:155

I (0) cpu_start: App cpu up.
I (437) cpu_start: Pro cpu start user code
I (437) cpu_start: cpu freq: 160000000
I (437) cpu_start: Application information:
I (441) cpu_start: Project name:     esp32_mouse_keyboard
I (447) cpu_start: App version:      v0.3-3-g6fbe015
I (453) cpu_start: Compile time:     Oct 10 2021 11:11:41
I (459) cpu_start: ELF file SHA256:  f6e08d5054a1c8c9...
I (465) cpu_start: ESP-IDF:          v4.4-dev-3235-g3e370c4296
I (472) heap_init: Initializing. RAM available for dynamic allocation:
I (479) heap_init: At 3FFAFF10 len 000000F0 (0 KiB): DRAM
I (485) heap_init: At 3FFB6388 len 00001C78 (7 KiB): DRAM
I (491) heap_init: At 3FFB9A20 len 00004108 (16 KiB): DRAM
I (497) heap_init: At 3FFC6F78 len 00019088 (100 KiB): DRAM
I (503) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (510) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (516) heap_init: At 40097B04 len 000084FC (33 KiB): IRAM
I (524) spi_flash: detected chip: generic
I (527) spi_flash: flash io: dio
I (532) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (542) HID_DEMO: pairing enabled by default
I (582) BTDM_INIT: BT controller compile version [078d492]
I (592) system_api: Base MAC address is not set
I (592) system_api: read default base MAC address from EFUSE
I (592) phy_init: phy_version 4670,719f9f6,Feb 18 2021,17:07:07
I (1022) MAIN: opening NVS handle for BT names
I (1022) MAIN: opening NVS handle for key/value storage
I (1032) MAIN: loading configuration from NVS
I (1032) MAIN: bt device name is: esp32_mouse_keyboard
I (1042) MAIN: error reading NVS - locale, setting to US_INTERNATIONAL
W (1052) BT_BTM: BTM_BleWriteAdvData, Partial data write into ADV
I (1052) gpio: GPIO[17]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 0| Pulldown: 1| Intr:0 
I (1052) UART: console UART processing task started
W (1072) EXT_UART: Switching pins!
I (1072) EXT_UART: external UART processing task started
I (1082) HID_LE_PRF: esp_hidd_prf_cb_hdl(), start added the hid service to the stack database. incl_handle = 40
I (1092) HID_LE_PRF: hid svc handle = 2d
I (1092) HID_LE_PRF: GATT EVT 12
I (1112) HID_LE_PRF: GATT EVT 12
W (1202) BT_LOG: esp_ble_gatts_send_indicate, The connection not created.
I (1202) HID_DEMO: Idle...
W (1502) BT_LOG: esp_ble_gatts_send_indicate, The connection not created.
I (1502) HID_DEMO: Idle...

I ve also tried it with an older iPhone 8 but with the same iOS installed and a Macbook Pro on the Apple Silicon running Big Sur 11.6 with no luck.

Seems to be working on some old Lenovo laptop running Win10 tho.

[benjaminaigner]

Dear @feed4rz oh sorry thats of course not good. We don't have any AppleSilicon HW to test, but I will test this with an older iPad. It's always the same, as soon as a new iOS version appears, Apple's Bluetooth policy and requirements are changing :-1:

Greetings

[feed4rz]

Have you been able to reproduce the issue?

[benjaminaigner]

Dear @feed4rz ,

sorry it took me so long, all our iPads were used in lectures. I've tested the current esp32_mouse_keyboard firmware (v0.3) on an iPad 6th gen with following results:

• [iOS 14.5.1] visible, pairable and mouse cursor works
• [iOS 14.8] visible, pairable and mouse cursor works

I can test it with iOS 15, but as you are requesting iOS 14.7.1, I don't think there will be a difference here.

what version of the code are you using? If you are using the master branch, would it be possible for you to test the v0.3 release?

Greetings

[benjaminaigner]

Hi @feed4rz , I've got another hint: Is it possible that your iPhone 12 does not support BLE4.0 devices? According to the BT-SIG FAQs there should be compatibility between a 5.0 central and a 4.0 peripheral, but you never now.

If it is possible, could you try a BLE example of the esp-idf to test if the ESP is discoverable with this firmware?

Greetings

[benjaminaigner]

Is it possible that your iPhone 12 does not support BLE4.0 devices? According to the BT-SIG FAQs there should be compatibility between a 5.0 central and a 4.0 peripheral, but you never now.

Oh sorry, I missed that you tried it with an iPhone8 too. Is updating iOS an option for you? According to the Apple community, ~170 people have issues with discovering BLE devices: https://discussions.apple.com/thread/253031699 Here are some suggestions to fix this problem, but I'm not an Apple expert to rate the quality of those: https://wccftech.com/how-to/how-to-fix-bluetooth-issues-after-updating-to-ios-14-and-ipados-14/

Greetings

[benjaminaigner]

Dear @feed4rz

I finally found an iPhone to reproduce this issue, but I'm not quite sure if it would be helpful:

iPhone 6
iOS 12.5.1

I try to have regular access to this phone, but cannot promise anything.

[manimathma]

@benjaminaigner I would like to add same behaviour in Fire Tv as well. I am using this firmware on C3F.

[benjaminaigner]

@manimathma THX for the report, this was a quick build :-). If it is possible: could you please test if your device is discoverable with the new Espressif example: esp-idf/examples/bluetooth/esp_hid_device/ If this works, I have at least the possibility to check differences (@feed4rz Would this be possible for you too?)

THX, Greetings

[manimathma]

@benjaminaigner it didn't work in both (this and esp official example). But by changing the appearance to keyboard i was able to get it to connect with this firmware. Seems like Fire Tv ignore device with generic appearance.

[benjaminaigner]

@manimathma

Thank you very much for this hint!!!

@feed4rz

Could you please try to change the appearance number:

https://github.com/asterics/esp32_mouse_keyboard/blob/5cf45eef416043413b12e0b958afa456020eb179/main/ble_hidd_demo_main.c#L201

To e.g.: 0x03C1 (keyboard) or 0x03C2 (mouse) to see if it works for you?

All possible GAP appearances for HID devices are listed on page 8 in this document: https://specificationrefs.bluetooth.com/assigned-values/Appearance%20Values.pdf

[benjaminaigner]

Dear @manimathma & @feed4rz

is this issue resolved for you or is there something I can do?

I think if this fix works for you, I will change the appearance in general to mouse.

Greetings

[manimathma]

@benjaminaigner

changing appearance to x03c1 or x03c2 worked for me.

Btw really appreciate everything you are doing on this project.

Also note if you are planning to migrate to esp-idf APIs, you can count me in on the work.

[benjaminaigner]

@manimathma

THX, we/I try our best for this repository. It is vital to have a working BLE mouse/keyboard implementation on all platforms for our FABI/FLipMouse devices. Of course I would like to thank you for the bug report and hint to fix it, otherwise we would not fix this error.

[tiny1990]

it's not working with ios 17.1