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(MKR Zero) Reading ADC_BATTERY via Serial Monitor without a battery attached returns the USB voltage

bug

Status: Open.

#742 In arduino/ArduinoCore-samd;

· bibletech55 opened on Apr 24, 2026

Unitialized variable BusOwner

Status: Open.

#740 In arduino/ArduinoCore-samd;

· zfields opened on Feb 2, 2026

TwoWire is in the arduino:: namespace

api

bug

Component: Wire

Status: Open.

#738 In arduino/ArduinoCore-samd;

· zfields opened on Feb 2, 2026

Project dead?

Status: Open.

#734 In arduino/ArduinoCore-samd;

· paaspaas00 opened on Jun 14, 2025

Hang when calling noTone()

Status: Open.

#732 In arduino/ArduinoCore-samd;

· ir-mark opened on May 20, 2025

EXTINT[15] on D26 line, PA27

Status: Open.

#731 In arduino/ArduinoCore-samd;

· 4project-co-il opened on Mar 30, 2025

Raspberry Pi install fails with "Tool avrdude not available for your operating system"

Status: Open.

#730 In arduino/ArduinoCore-samd;

· robrennie opened on Mar 24, 2025

Bug: digitalWrite() incorrectly uses DIRSET register instead of DIR register for pin direction checking

Status: Open.

#727 In arduino/ArduinoCore-samd;

· jacoblgit opened on Mar 2, 2025

<charconv> not found (and string_view, too)

Status: Open.

#725 In arduino/ArduinoCore-samd;

· JetForMe opened on Jan 3, 2025

Not defining USBCON broke since 1.8.14

Status: Open.

#723 In arduino/ArduinoCore-samd;

· MSmeets94 opened on Oct 30, 2024

Where does the formula of BAUD comes from in SERCOM::initMasterWIRE( uint32_t baudrate )

Status: Open.

#719 In arduino/ArduinoCore-samd;

· rawlines opened on Aug 13, 2024

Bootloader Make Issue

Status: Open.

#716 In arduino/ArduinoCore-samd;

· andychu2888 opened on Jun 10, 2024