How to detect the difference between a Pico and a Pico W #RaspberryPiPico #RaspberryPi @Raspberry_pi

An interesting question: can code determine if it’s running on a Raspberry Pi Pico or a Pico W with WiFi?

Hardware-wise, both boards are nearly identical. But there are a couple subtle differences. And the onboard LED is connected differently.

On GitHub in the Earle Philhower repository for an Arduino Pico core, the question came up back in September. It was discussed and solutions offered with @dlkeng coming up with a solution implemented.

Earl has incorporated this into the code with the rp2040.isPicoW() function. This makes it easy for anyone using Earle’s core to determine at runtime which board is running the code. Thus a blink sketch can be crafted for either board, code can determine if the WiFi peripheral is present and act appropriately, etc.

There is a downside: “universal code” must be compiled for the Pico W (the “beefier” variant), adding in the WiFi overhead.

You can read about this in the thread here and see the pull request here.

 

 


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