(Added on 2024-04-22
Do you want to protected your WDRC parameters , you can set parameter key (8 ascii digits)
after you set, and reboot the hearing aid , the ble client must send correct parameter key first after ble connected ,otherwise he can not read or write EQ/WDRC parameters

TBD: Mic ,Speaker Measurement ,Feedback Path measurement ,etc
Please allow audio dump in 'general > Enabled Modules', and connected jtag links with J10, and make main.bat ready to dump audio.see our video instructions and all tools( BAIDU NETDISK, file:how_to_recordj11_anaylsenoise.zip)
this only available for debug version,not for production version

• DMIC
• Speaker
• Feedback Path
• THD+N

How to develop android/ios app ,or WEB application

2023-03-30: the latest ble document :BAIDU NETDISK ,pwd:2023

Service UUID :e093f3b5-00a3-a9e5-9eca-40016e0edc24 , Characteristic UUID:e093f3b5-00a3-a9e5-9eca-40036e0edc24

Sending to J10 Hearing Aid/Received Data from J10 Hearing Aid
each ble package has 100 bytes

• bytes[0]: mem index
• bytes[1]: volume (0--20)
• bytes[2]: dac gain
• bytes[3]: enabled modules
• bytes[4]: a correct packet should be bytes[1]^bytes[2]^bytes[3]^0xDE
• bytes[5]: hardware reversion: 0x0A for J10,0x0B for j11
• bytes[6]: od gain :0/3/6/9/12 (obsoleted)
• bytes[7]: max volume, when press button to inc volume
• bytes[8]: min volume , when press button to dec volume
• bytes[9]: volume step , when press button to inc/ dec volume
• bytes[10..19]: ble display name
• bytes[20..67]:WDRC data,total 48 bytes for 8 bands ,so each band has 6 bytes:exp_cr, exp_end_knee,tkgain,tk,cr,bolt
• bytes[80..87]:EQ data, total 8 channels

You can check our RSL10 code to know how we parse the ble data

   uint8_t  result_xor = valptr[1]  ^ valptr[2];
	 result_xor = result_xor ^valptr[3];
	 result_xor = result_xor ^ 0xDE;
	 //we use XOR to make sure correct data format, 
	// if (valptr[4] != result_xor)
	//	 return ;
	 
	// if  (lenData <30)  return ;

	 uint8_t mem_idx = valptr[0];
	 MCU_MULTI_GAIN.ADC_GAIN = valptr[1];
 
    
	#if (VOLUME_ENABLE ==1)
		 MCU_VOLUME.Volume = 0 - valptr[1];

	#endif
	 
	 MCU_MULTI_GAIN.DAC_GAIN = valptr[2];

	 uint8_t wdrc_mask =valptr[3];
	 cs_env[0].wdrc_mask = wdrc_mask;


	 //BLE Dislay name : Offset 10..19 ,total 10 bytes
	 if (valptr[10]>0)
		 memcpy(ble_dispname,(uint8_t*)&valptr[10],10);


	 int base_offset = 20;
	//WDRC :Offset:20-67  ,total bytes: 6*8=48

	for (uint8_t band_idx=0;band_idx <8;band_idx++)
		MCU_WDRC.exp_cr[band_idx] = 0.1f * valptr[base_offset++];

	for (uint8_t band_idx=0;band_idx <8;band_idx++)
		MCU_WDRC.exp_end_knee[band_idx] = 1.0f * valptr[base_offset++];

	for (uint8_t band_idx=0;band_idx <8;band_idx++)
		MCU_WDRC.tkgain[band_idx] = 1.0f * valptr[base_offset++];

	for (uint8_t band_idx=0;band_idx <8;band_idx++)
		MCU_WDRC.tk[band_idx] = 1.0f * valptr[base_offset++];

	for (uint8_t band_idx=0;band_idx <8;band_idx++)
		MCU_WDRC.cr[band_idx] = 0.1f * valptr[base_offset++];

	for (uint8_t band_idx=0;band_idx <8;band_idx++)
		MCU_WDRC.bolt[band_idx] = 1.0f * valptr[base_offset++];


	//valptr[68..79]  Reservered

	//EQ :offset:80-87
	base_offset = 80;
	for (uint8_t band_idx=0;band_idx <8;band_idx++)
			MCU_EQ.dB_Gain_float[band_idx] = 0.0f - valptr[base_offset++] ;
  
  

Upgrade by Ble

After you click the button ,the hearing aid reboot ,and enter fota mode ,the BLE dislay name will be "J10-0000-L" (or something others ), you can use pc software or android app to upload .fota file

You can use windows pc + wireless usb dongle to upgrade hearing aid via ble

You can use mobile phone to upgrade hearing aid via ble

here is more information about j10 fota : J10 support FOTA now