How to send sensor data using AT commands to a device using Uart in segger embedded studio

[Rajbir Singh]

Hi, I am new to NRF and segger embedded studio.

So I want to send temperature sensor data connected with nrf52840 DK to the Murata1_SC  device using UART.

The data will be sent using AT Commands.

So how to send AT Commands in Segger embedded studio.

Thank you for the help in advance.

[Rajbir Singh]

awneil said:

As with any other microcontroller, you would need to connect some sort of monitor onto the wires connecting the nRF to the modem

means another device, I don't understand what actually you are saying.

[awneil]

see the link I provided.

[Rajbir Singh]

Please tell me where in segger I can check the output of the command

[Rajbir Singh]

where id debug terminal in this

[Rajbir Singh]

Here is my code

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "app_uart.h"
#include "app_error.h"
#include "nrf_delay.h"
#include "nrf.h"
#include "bsp.h"
#include "nrf_uart.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

#define ENABLE_SWO

//#define DTM_RX_PIN NRF_GPIO_PIN_MAP(0, 11) // p0.11
//#define DTM_TX_PIN NRF_GPIO_PIN_MAP(1, 8) // p1.08


#define UART_TX_BUFF_SIZE 256
#define UART_RX_BUFF_SIZE 256

#define UART_HWFC APP_UART_FLOW_CONTROL_DISABLED


void uart_err_handle(app_uart_evt_type_t * p)
{
  

}


///**@brief Function for UART initialization.
// */
//static void uart_init(void)
//{   
//    uint32_t err_code;
//    const app_uart_comm_params_t comm_params =
//      {
//          DTM_RX_PIN,
//          DTM_TX_PIN,
//          RTS_PIN_NUMBER,
//          CTS_PIN_NUMBER,
//          APP_UART_FLOW_CONTROL_DISABLED,
//          false,
//          NRF_UART_BAUDRATE_115200
//          //DTM_BITRATE
//      };

int main(void)
{

  APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
  NRF_LOG_DEFAULT_BACKENDS_INIT();
  
  NRF_LOG_INFO("AT/n");
  uint32_t err_code;

  bsp_board_init(BSP_INIT_LEDS);
  
  const app_uart_comm_params_t com_params = 
   {
    RX_PIN_NUMBER, 
    TX_PIN_NUMBER, 
    RTS_PIN_NUMBER,
    CTS_PIN_NUMBER,
    UART_HWFC,     //APP_UART_FLOW_CONTROL_DISABLED
    false,
    NRF_UART_BAUDRATE_115200
    };


  APP_UART_FIFO_INIT(&com_params, 
                      UART_RX_BUFF_SIZE, 
                      UART_TX_BUFF_SIZE, 
                      uart_err_handle, 
                      APP_IRQ_PRIORITY_LOWEST, 
                      err_code);

  APP_ERROR_CHECK(err_code);
  NRF_LOG_INFO("AT/n");
  nrf_delay_ms(1000);
  //printf("Hello PC from Nordic");
  
  while(true)
  {
    uint8_t cr;
    NRF_LOG_INFO("AT/n");
    printf("\r\nAT\r\n");
    nrf_delay_ms(2000);
    while(app_uart_get(&cr) != NRF_SUCCESS);//wait here for the character from pc
    if(cr == 'OK')
    {
      bsp_board_leds_on();
      NRF_LOG_INFO("OK");
      
    }
    if(cr == 'ERROR')
    {
      bsp_board_leds_off();
      NRF_LOG_INFO("ERROR");
    }
  }
}

Please correct me where i am wrong?