nrf52 development kit(pca10040) serial monitor shows garbage values.

[pd@learner]

Hi,

I am using pca10040 board of nrf52 dk. I am running battery level measurement code on board but whenever I observed values on serial monitor it shows garbage values.when i observed values on  nrfConnect App its shows correct values.

[abhibera]

Can you show the log statement you are using to print on serial monitor? Maybe it's the data type that's causing the issue thus you are seeing garbage. 

[pd@learner]

 if (p_event->type == NRF_DRV_SAADC_EVT_DONE)
    {
        ret_code_t err_code;

        err_code = nrf_drv_saadc_buffer_convert(p_event->data.done.p_buffer, SAMPLES_IN_BUFFER);
        APP_ERROR_CHECK(err_code);
        
				batt_lvl_in_milli_volts=ADC_RESULT_IN_MILLI_VOLTS(adc_result) +
                                  DIODE_FWD_VOLT_DROP_MILLIVOLTS;
			
				percentage_batt_lvl = battery_level_in_percent(batt_lvl_in_milli_volts);
			
				NRF_LOG_INFO("p_event->data:::%d\r\n", p_event->data.done.p_buffer[0]);
				NRF_LOG_INFO("batt_lvl_in_milli_volts:::%d\r\n", percentage_batt_lvl);
    }

[AndreasF]

Hi.

Which SDK are you using?

Are you using any example?

I observed values on serial monitor

 What type of serial communication are you using? UART? RTT?

Could you post some more code?

Best regards,

Andreas

[pd@learner]

UART