Timer Interrupt Uno R4 Minima

▤ Summary

The discussion explains how to implement timer interrupts on the Arduino Uno R4 Minima and compares the approach with the older Uno R3. It notes that the usual AVR timer libraries do not apply directly on the R4 and that developers may need to work with Renesas registers or use the Arduino core and FSP internals. The post shares example bare-metal code that configures GPT7 overflow interrupts and a pin-change interrupt on the R4. It also highlights the warning shown by TimerOne on the renesas_uno architecture and mentions a pull request that adds R4 support. The thread concludes that Arduino's API does not offer an easy equivalent for this use case, so low-level interrupt setup remains a practical workaround.

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