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Watchdog programming problem

Status: Open.

#536 In arduino/ArduinoCore-renesas;

· lawsonkeith opened on Mar 4, 2026

Arduino_CAN library: Calling available() twice in a row returns gives different results

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.

#535 In arduino/ArduinoCore-renesas;

· lukasbraendli opened on Mar 3, 2026

Arduino_CAN library: Calling if (CAN1.available()) causes message loss on the other interface

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.

#534 In arduino/ArduinoCore-renesas;

· hamatyo0126 opened on Mar 1, 2026

R7FA6M5_CAN: CAN error interrupt handler incomplete — device stuck in infinite ISR loop on bus error

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.

#532 In arduino/ArduinoCore-renesas;

· lukasbraendli opened on Feb 23, 2026

R7FA4M1AB.h GTCR_b.TPCS definition is off by one bit

topic: infrastructureRelated to project infrastructureRelated to project infrastructure

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

Status: Open.

#531 In arduino/ArduinoCore-renesas;

· Skidlz opened on Feb 18, 2026

Make HardwareSerial::write(buf, len) non-blocking

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

type: enhancementProposed improvementProposed improvement

Status: Open.

#529 In arduino/ArduinoCore-renesas;

· gicking opened on Feb 6, 2026

SoftwareSerial destructor not complete

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.

#525 In arduino/ArduinoCore-renesas;

· gicking opened on Feb 1, 2026

Long delay for Serial1.begin() / missing updateBaudRate()

Status: Open.

#524 In arduino/ArduinoCore-renesas;

· gicking opened on Jan 25, 2026

SoftwareSerial baudrate cannot be changed dynamically

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

Status: Open.

#523 In arduino/ArduinoCore-renesas;

· gicking opened on Jan 25, 2026

Missing SoftwareSerial.stopListening() and SoftwareSerial.listen()

Status: Open.

#522 In arduino/ArduinoCore-renesas;

· gicking opened on Jan 24, 2026

Status of I2S support

Status: Open.

#521 In arduino/ArduinoCore-renesas;

· pschatzmann opened on Jan 21, 2026

Display garbage on OLED SSD1306 screen when using core version 1.5.2 for Arduino R4 Nano

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.

#520 In arduino/ArduinoCore-renesas;

· vbturri opened on Jan 17, 2026