Support for Raspberry Pi Pico W with Wireless

[efectn]

Pico W has been released today with included wirless chip. It would be great if tinygo supports it. It uses CYW43439 as wireless chip.

https://www.raspberrypi.com/news/raspberry-pi-pico-w-your-6-iot-platform/

[sago35]

Hmm?
Maybe we need PIO support first?

https://github.com/raspberrypi/pico-sdk/tree/master/src/rp2_common/cyw43_driver

[kenbell]

I've got my hands on one. Using the Pico target in tinygo does the basics (as you'd expect):

• UART is functional (GPIO 0 / GPIO 1)
• Blinky is not functional (because on-board LED is via the wireless chip and GPIO25 is not an LED)

Wireless (obviously) not tested.

To properly support will need at least:

• A new target (picow ?)
• Figure what to do about on-board LED (if anything), given it's not a pico GPIO
• Add support for the wireless chipset

[charathram]

If this is worked on, and requires someone to test, I'm more than happy to commit some time to test on a Pico W.

[pobochiigo]

If this is worked on, and requires someone to test, I'm more than happy to commit some time to test on a Pico W.

Ready to participate in testing as well

[rgerardi]

I've got a couple of Pico W here as well. Ready to help testing

[sago35]

https://github.com/georgerobotics/cyw43-driver

[asap2Go]

Is someone already working on this?

[quaintdev]

Guys anyone working on this? I think the supply chain issues at least for Pico W seems to be resolved as they are available everywhere now.

[andoks]

Does the introduction of the Pico W warrant a separate page from the current Pico page (https://tinygo.org/docs/reference/microcontrollers/pico/)?

[rtitz]

Seems that still the Wifi module of raspberry pi pico is not supported.
Any plans to implement this?

[MushiTheMoshi]

is it plan to be supported this year ?

[soypat]

Like @sago35 said, PIO would go a long way to having wifi as envisioned by the Raspberry Pi engineers since the CY43's SPI data in and out are shared by pin 24 of the pico, so peripheral SPI is not a possibility. I'm out of my element when it comes to PIO, very excited about it (bought a logic analyzer recently with 500MHz sampling for PIO debugging in future).

The other option is using software SPI, which I will try to test out the pico W once I get back from vacations and settled in. That may take while to get working, if at all possible- that depends on how far the software spi can go and what the cy43 interface can tolerate.

I've documented helpful info in a repo for anyone interested in maybe helping out https://github.com/soypat/cyw43439. I've bought 10 of these Pico W's with hopes that wifi will work on it in the near future, for some definition of "near".