Pinmap for Arduino nano 33 BLE Sense

ujjwalrathod007 · November 2, 2021, 5:29am

I have problem finding the right Port,Pin configuration for arduino-nano-33-ble-sense board.

I am using an open-source OS where I want to try a simple LED-ON example on specific pin. What I undestood from the following schemattic is somewhat confusing.

What does it mean GPIO25_A in the following schematic diagram(URL)? Does it mean PortA pin 25? But there is also P0.04 on that pin which would mean Port0 pin 4. I tried several pins from the schematic and it did not work as expected. I need more clerification. Also, I looked at nRF52840 datasheet for further reference.

https://content.arduino.cc/assets/NANO33BLE_V2.0_sch.pdf?_gl=1*s219wr*_ga*MTM4ODA3MzA0NS4xNjM1NjA0MTMw*_ga_SELSHHP7SG*MTYzNTgxOTUwMy4xNC4xLjE2MzU4MTk1MDMuMA..

Juraj · November 2, 2021, 5:53am

scroll down on

and

github.com

arduino/ArduinoCore-mbed/blob/master/variants/ARDUINO_NANO33BLE/variant.cpp

#include "Arduino.h"
#include "pinDefinitions.h"

/* wiring_analog variables definition */
/* Flag to indicate whether the ADC config has been changed from the default one */
bool isAdcConfigChanged = false;

/* 
 * Configuration used for all the active ADC channels, it is initialized with the mbed default values
 * When it is changed, all the ADC channels are reconfigured accordingly 
 */
analogin_config_t adcCurrentConfig = {
    .resistor_p = NRF_SAADC_RESISTOR_DISABLED,
    .resistor_n = NRF_SAADC_RESISTOR_DISABLED,
    .gain       = NRF_SAADC_GAIN1_4,
    .reference  = NRF_SAADC_REFERENCE_VDD4,
    .acq_time   = NRF_SAADC_ACQTIME_10US,
    .mode       = NRF_SAADC_MODE_SINGLE_ENDED,
    .burst      = NRF_SAADC_BURST_DISABLED,
    .pin_p      = NRF_SAADC_INPUT_DISABLED,

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system · May 1, 2022, 5:54am

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