Pianu might be a bit more popular than LUMI Keys. We know about 1 link to it since March 2021 and only 1 link to LUMI Keys. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This is a keyboard with light-up keys that guide you, but it might be out of the price-range for your project: https://playlumi.com/lumi-keys. Source: about 3 years ago
MIDI devices mostly refer to musical controllers. With it, you can plug a controller and play piano on https://pianu.com, for example. I use it sometimes. - Source: Hacker News / almost 3 years ago
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