It really is a rabbit hole once you start browsing the Seeed catalog! They somehow always have those quirky modules you didn’t even know existed until you spot them — and then you suddenly need them 
I’ve had so many “aha!” moments where a random sensor or expansion board ended up solving some problem I’d been stuck on forever.
If you’re into cool finds like that, I’d also check out theSeeed Studio Wiki — that’s where I go to see real implementation examples and project ideas for parts like these. Sometimes the most unassuming little board turns out to be perfect for something awesome
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