ble uart client and uarte, pwm merge

[NikTheNordicUser]

Hi , i am trying to merge  ble_uart client example together with a project that I built using the app_pwm and uarte driver and I cant seem to manage is it possible to show me how and guide me please. i keep getting library issues and I'm getting lost

[Charlie]

Hi Nikolai,

I made one example for you based on example nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart_pwm. Just release 3531.ble_app_uart_pwm.zip to the same folder.

Please pay attention to the following codes added to "nus_data_handler(ble_nus_evt_t * p_evt)". When you send "1" from the central device you will turn on PWM, send "0" will turn off PWM.

        ...
        NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);
        
        switch (p_evt->params.rx_data.p_data[0])
        {
            case '0':
                NRF_LOG_INFO("Turn off PWM");
                pwm_stop();
                break;
            case '1':
                NRF_LOG_INFO("Turn on PWM");
                pwm_play();
                break;             
          default:
                // No implementation needed.
                break;
        }

        for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++)
        ...

Best regards,

Charlie

[NikTheNordicUser]

Thank you for your response, in my application I need to change the pwm frequency depending on the value entered through uart, can this be done as previously  I was using the pwm library rather than the driver

[Charlie]

Here is one example to use PWM library: ble_app_uart_pwm_library.zip

        ...
        NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);

        uint32_t frz = (uint32_t) atoi(p_evt->params.rx_data.p_data);
        NRF_LOG_DEBUG("frz: %d",frz);
        app_pwm_int(frz);


        for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++)
        ...

[NikTheNordicUser]

thank uu ! ill have a look at it 

[NikTheNordicUser]

hi i finally had a chance to look at this and wanted to thank you for the help, just wanted to ask how can I change this to a ble client rather than a ble peripheral as when i am trying to change the uart handler it doesn't seem to be wokring