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  • 2
    What is the question? Commented Sep 27 at 1:52
  • I need a simple code set for the Arduino Nano R4 that generates an interrupt every 30 MicroSeconds Commented Sep 27 at 2:20
  • see the Arduino_LED_Matrix example for Uno R4 WiFi. it uses FspTimer Commented Sep 27 at 5:53
  • 1
    Re “the project requires a much faster A/D [than the Arduino Nano's]”: This is achievable on a classic Nano by setting the ADC prescaler to 32 (26 µs conversion time), at the cost of negligible loss of ADC accuracy. It could be easier to program than the new Nano R4. Commented Sep 27 at 9:44
  • Specifically for using FspTimer: github.com/arduino/ArduinoCore-renesas/blob/… Commented Sep 27 at 11:08