Not able to blink the onboard led on rpi pico w

[Narayanbhat166]

I'm trying to get started with running rust on my newly purchased rpi pico w ( with wifi support ). Initially when I set everything up and run the blinky example, it did not work. I then ran the micro python example and the led was working. For the w version the rpi community says that there is a slight change in the way onboard led is configured

Link to the thread https://forums.raspberrypi.com/viewtopic.php?t=336836

Is there any change that must be made in the rust blinky example to get it working?

[jannic]

"a slight change" is an understatement: The LED is connected to a different chip, the wifi one, not the RP2040.
Therefore, to blink the LED, you need a wifi driver. Which is not yet available in the released version of rp2040-hal.

If you are adventurous, you could try the experimental WIP version at https://github.com/jannic/rp-hal/tree/pico-w.
The blinky example is at https://github.com/jannic/rp-hal/blob/pico-w/boards/rp-pico-w/examples/pico_w_blinky.rs

(BTW, please don't close this ticket. There have been multiple instances of the same question in the past. Perhaps an open ticket with a descriptive title will help other people with the same issue.)

[Narayanbhat166]

This works. Thanks!

[metetik]

I had same issue thanks so much 🙏

[dewey4iv]

Still works! :)

[alexkingnz]

Is the pico-w branch going to be merged into main at some stage? I see it's behind main by about 6 months? Anything others could do to assist with it?

[jannic]

In theory, that's the idea. In practice, it was blocked on some other crates which were not released to crates.io yet, and would probably need nightly rust.

I didn't follow recent developments closely so I'm not sure if the reasons still exist. My plan is to revisit the situation every now and then, but I don't want to spend much time on updating the branch until it is realistic to actually merge it.