How to send the datas that are more than 1byte when nRF52 DK Board send data to Android App?

Question

Hi everyone, 
 
 I try to send my nRF52 DK board to an android application. 
 nRF52 example source is "ble_app_blinky_pca10040_s132" and Android app sample is nRF-Blinky from git. ( https://github.com/NordicSemiconductor/Android-nRF-Blinky ) 
 I need to help. How to send the datas that are more than 1byte when nRF52 DK Board send data to Android App. 
 ble_lbs_on_button_change() function send 1byte. I want to send MAX 10 byte or string format. 
 
 Would you help me resolve problem? 
 
 Sincerely yours, 
 Eric.

awneil · Accepted Answer

Have you looked at the Nordic UART Service (NUS) ? 
 https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/ble_sdk_app_nus_eval.html 
 That can send arbitrary amounts of arbitrary data. 
 Tutorials on BLE Services & Characteristics: 
 https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-services-a-beginners-tutorial 
 https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial 
 The Thingy52 has several data items bigger than 1 byte 
 https://www.nordicsemi.com/?sc_itemid=%7B3C201A33-5CA5-457B-87E4-A7B04C19EE71%7D

nRFBeginner · Answer

Hi awneil, 
 Thank you to reply my question :) 
 I resolved that nRF52 DK communicate to Android application nRF UART_2.0" from git. 
 But faced new trouble. 
 I have two smartphone. One Android 9, Another one 4.4. 
 nRF UART 2.0 app can't nRF52 devices Android 9, but android 4.4 can. 
 I want to know solution and resolve that. 
 
 - Eric

How to send the datas that are more than 1byte when nRF52 DK Board send data to Android App?

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