[StavrosK]

Does that require a phone nearby at all times?

[matrixagent]

I'd also be interested in this. Would love such a button that could connect via WiFi or generic BT on a Raspberry Pi or something like that, rather than a smartphone with a specific app.

[oskob]

For the time being, you need a smartphone. But we are currently looking into other areas to expand the use of our product.