Sample Pin Interrupt – Switch detection

• Pressing Button Switch, print (“intr”) is executed.

• Example for RA4M1 Clicker: specify P304

from pyb import Pin,ExtInt

callback = lambda e: print("intr")
ext = ExtInt(Pin(Pin.cpu.P304, Pin.IN, Pin.PULL_UP), ExtInt.IRQ_RISING, Pin.PULL_UP, callback)

• Example for EK-RA6M2: specify P105

from pyb import Pin,ExtInt

callback = lambda e: print("intr")
ext = ExtInt(Pin(Pin.cpu.P105, Pin.IN, Pin.PULL_UP), ExtInt.IRQ_RISING, Pin.PULL_UP, callback)

• In order to perform pin interrupt, the pin needs to be assigned as IRQx, and IRQ interrupt must be enabled in MicroPython Firmware.