Interfacing External Sound Sensor with nRF52832

RE: Interfacing External Sound Sensor with nRF52832

g.joshi — Mon, 15 May 2017 15:54:03 GMT

I managed to get the Digital reading using SAADC but is their i can get the analog output. Thanks in advance .

RE: Interfacing External Sound Sensor with nRF52832

g.joshi — Fri, 21 Apr 2017 09:27:30 GMT

Oh Yes, I messed up . Thanks !

RE: Interfacing External Sound Sensor with nRF52832

Tostikoning — Fri, 21 Apr 2017 09:25:42 GMT

Yeah sure,

this is Arduino code for interfacing with the sound sensor, but you are not using a Arduino so this code is not compatible.

RE: Interfacing External Sound Sensor with nRF52832

g.joshi — Fri, 21 Apr 2017 09:22:36 GMT

static void nrf_gpio_cfg_input(GATE, NRF_GPIO_PIN_NOPULL) static void nrf_gpio_pin_read(GATE

)

    void soundISR()
    {
      int pin_val;
    
      pin_val = digitalRead(PIN_GATE_IN);
      digitalWrite(PIN_LED_OUT, pin_val);
    }
    
    void setup()
    {
      Serial.begin(9600);
    
      //  Configure LED pin as output
      pinMode(PIN_LED_OUT, OUTPUT);
    
      // configure input to interrupt
      pinMode(PIN_GATE_IN, INPUT);
      attachInterrupt(IRQ_GATE_IN, soundISR, CHANGE);
    
      // Display status
      Serial.println("Initialized");
    }

Does this makes sense ??

RE: Interfacing External Sound Sensor with nRF52832

Tostikoning — Fri, 21 Apr 2017 08:46:55 GMT

@g.joshi I would start with the GATE. Make pin04 act as an input, and poll this input. To give you a start: nrf_gpio_cfg_input(GATE, NRF_GPIO_PIN_NOPULL); to initialize the pin. To read the pin you need to use: nrf_gpio_pin_read(GATE).

If this works you can try to use the SAADC examples to measure the ENVELOPE pin.

RE: Interfacing External Sound Sensor with nRF52832

g.joshi — Fri, 21 Apr 2017 08:43:26 GMT

@Tostikoning Yes i am using this sound sensor and my nordic device is nRF52832.

RE: Interfacing External Sound Sensor with nRF52832

Tostikoning — Fri, 21 Apr 2017 08:37:30 GMT

I think something like this: learn.sparkfun.com/.../sound-detector-hookup-guide Also what nordic device are you using? nvm, I see nrf2832...

RE: Interfacing External Sound Sensor with nRF52832

bjorn-spockeli — Fri, 21 Apr 2017 08:35:57 GMT

@gopal30: What kind of sensor are you trying to interface?

RE: Interfacing External Sound Sensor with nRF52832

g.joshi — Fri, 21 Apr 2017 08:25:26 GMT

Hey Tostikoning i have already tried that example and it´s working perfectly fine. my issue is i am not sure how to build from scratch. i am using SDK_12.2.2.0 and i don´t see any example for external sensor interfacing.

RE: Interfacing External Sound Sensor with nRF52832

Tostikoning — Fri, 21 Apr 2017 08:12:14 GMT

Hi,

First have a look at the following tutorial:

devzone.nordicsemi.com/.../

Maybe try something simple first, like a blinky application to make sure your toolchain is set up right.

Also, you should try to give us more information about the SDK version you wish to use. If you wish to use a softdevice and other relevant things about your application.