u/Acceptable-Cost4817

I'm looking at this module https://www.lcsc.com/product-detail/C2764054.html and wondering if the component in the corner is a chip antenna? Or do I need to provide my own antenna?

(I know there are newer modules avaible, but this one is the only one I found that's both small and easily manufacturable)

I need to install my own (highly time-critical) GPIO IRQ interrupt handler, so I'm currently using the embassy_rp crate without the default rt feature enabled. Instead, I directly depend on rp_pac with the rt feature.

However, I've noticed that my second executor on core1 doesn't seem to start at all. I'm sure there are other nasty surprises when not using the rt feature - so how can can I install my own GPIO handler within embassy?