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CRITICAL: Bus fault in FspTimer.cpp on Arduino UNO R4 WiFi when calling set_period_ms() on unopened timer

Status: Open.

#509 In arduino/ArduinoCore-renesas;

· gip2 opened on Dec 5, 2025

R4 delay() does not properly handle millis() wrap-around

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: imperfectionPerceived defect in any part of projectPerceived defect in any part of project

Status: Open.

#506 In arduino/ArduinoCore-renesas;

· WestfW opened on Nov 26, 2025

add full support for mTLS to WiFiSSLClient

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: enhancementProposed improvementProposed improvement

Status: Open.

#499 In arduino/ArduinoCore-renesas;

· Matthew-Reidy opened on Oct 10, 2025

The symbol NOT_AN_INTERRUPT is not defined in Arduino.h

Status: Open.

#496 In arduino/ArduinoCore-renesas;

· obdevel opened on Sep 30, 2025

Provide a WebServer library for the UNO R4 WiFi

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: enhancementProposed improvementProposed improvement

Status: Open.

#491 In arduino/ArduinoCore-renesas;

· ArsiTheFox opened on Sep 13, 2025

Add safety check to prevent system crash when calling Serial1.end() without Serial1.begin() on Arduino Uno R4

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: enhancementProposed improvementProposed improvement

Status: Open.

#489 In arduino/ArduinoCore-renesas;

· a10036gt opened on Sep 3, 2025

[Uno R4 WiFi] <code>while (!Serial);</code> not working on Uno R4 WiFi

Status: Open.

#487 In arduino/ArduinoCore-renesas;

· swanjeng opened on Aug 15, 2025

[Request] Can we have the default factory demo sketch for the Arduino Nano R4?

topic: documentationRelated to documentation for the projectRelated to documentation for the project

type: enhancementProposed improvementProposed improvement

Status: Open.

#486 In arduino/ArduinoCore-renesas;

· ArsiTheFox opened on Aug 12, 2025

random() is very slow on Uno R4

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: imperfectionPerceived defect in any part of projectPerceived defect in any part of project

Status: Open.

#484 In arduino/ArduinoCore-renesas;

· WestfW opened on Aug 5, 2025

RA4M2 Support?

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: enhancementProposed improvementProposed improvement

Status: Open.

#482 In arduino/ArduinoCore-renesas;

· pwnept opened on Jul 27, 2025

CAN write possible bug

topic: codeRelated to content of the project itselfRelated to content of the project itself

type: imperfectionPerceived defect in any part of projectPerceived defect in any part of project

Status: Open.

#473 In arduino/ArduinoCore-renesas;

· domw95 opened on Jun 26, 2025

DFU driver for Windows on ARM

topic: infrastructureRelated to project infrastructureRelated to project infrastructure

type: imperfectionPerceived defect in any part of projectPerceived defect in any part of project

Status: Open.

#466 In arduino/ArduinoCore-renesas;

· Hsubtnarg opened on Apr 30, 2025