"TypeError: extra keyword arguments given" for machine.Timer

[dayunbao]

I'm trying to create and start a timer, but am getting this error TypeError: extra keyword arguments given. I're tried creating a Timer and calling its init a few different ways:

bpm_timer = Timer()
bpm_timer.init(period=250, mode=Timer.ONE_SHOT, callback=self.turn_off_bpm_led)

bpm_timer = Timer(period=250, mode=Timer.ONE_SHOT, callback=self.turn_off_bpm_led)
bpm_timer.init()

bpm_timer = Timer(period=250, mode=Timer.ONE_SHOT, callback=self.turn_off_bpm_led)
bpm_timer.init(period=250, mode=Timer.ONE_SHOT, callback=self.turn_off_bpm_led)

but I get that error on which ever line has the arguments first. I based my code on the examples in the docs, but am still getting that error. Is this a bug?

[robert-hh]

Does it happen as well if you just use

bpm_timer = Timer(period=250, mode=Timer.ONE_SHOT, callback=self.turn_off_bpm_led)

In that case, calling Timer.init() would stop the timer.

[robert-hh]

Tried that here & it works. Are you sure that the characters in the keywords are plain ASCII. Sometimes UTF-8 lookalikes are there, which then cause the type of error you see.

[robert-hh]

Which firmware version do you use?

[dayunbao]

I just tried it again, and got the same error. The only way I didn't get that error was by not specifying the mode keyword. I just removed that argument all together, since it defaults to PERIODIC. This is the uf2 I'm using: RPI_PICO_W-20241129-v1.24.1.uf2.

[robert-hh]

That is indeed strange. I loaded 1.24.1 for Pico W from the download site and flashed it to a Pico W.
Trying with your code as:
bpm_timer = Timer(period=250, mode=Timer.ONE_SHOT, callback=my_callback
It works. No complaints about the mode argument. Maybe you could try to re-flash the firmware with a newly downloaded copy.