send data by ble uart

Question

Hi 
 I use SES and nRF52832 dongle . I want to send data on "ble uart" and get that data on "nRF UART v2.0" app. mean i want send a string in program while every 5 second and get it on mobile app. I did different ways. But it didn't work. 
 I use this example "
RF5SDK160098a08e2\examples\ble_peripheral\ble_app_uart\pca10040\s132\ses" 
 pls help me .

Karl Ylvisaker · Accepted Answer

Hello, 
 Bizadi said: thanks for your quick reply . 
 No problem at all, I am happy to help! 
 Bizadi said: 
 My problem is modify or setting for send a string. 
 I use this command :"ble_nus_data_send(p_nus,"My String",p_length,conn_handle);" in "ble_app_uart" example. 
 is this command correct? 
 Do I need to make any special modify or settings to use this command? 
 
 No. Please see the function declaration: uint32_t ble_nus_data_send(ble_nus_t * p_nus, uint8_t * p_data , uint16_t * p_length, uint16_t conn_handle) The p_data argument needs to be a pointer to a uint8_t array. In the UART example, this uint8_t array is a c string(char array). It will not work inputting the entire string as the argument. Instead, you should do something like this: #define STR_LENGTH 12

char my_c_string[STR_LENGTH] = {"My C String"};
uint16_t length = sizeof(my_c_string);

ble_nus_data_send(p_nus, my_c_string, &length, m_conn_handle); 
 Bizadi said: What are the values of the variables? (like " p_nus" pointer ) 
 Are you using Segger embedded stuidos? Then you may right click any variable and click "Go to definition" to see where it is defined. As you then will see, the p_nus is the instance of the NUS service. 
 Bizadi said: what is value for define "SER_APP_CTS_PIN" and "SER_APP_RTS_PIN" ? 
 I do not understand what you are asking me here. The defines you have listed is just to point to the pin number for the respective functionality - its a very good practice to replace magic numbers with properly named macros, which I highly recommend for increased readability. 
 Bizadi said: When we don't use those pins, should they be connected in the circuit? (PULL-UP or PULL-DOWN) 
 If they are not used, you may just leave them to the default unused GPIO configuration - disconnected inputs. If you do not use UART at all then you may disable the entire UART module and all its configurations. Best regards, Karl

awneil · Answer

Bizadi said: The problem solved

send data by ble uart

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