Every now and then I think about small spectrometers (my university final year project was one). Today I'm thinking about ways to have a battery-powered spectrometer communicate with a smart device.
The way I did it in the project was to host a web server on the spectrometer and have it act as a WiFi hotspot. This seems massively overcomplicated and gave me an intense dislike of creating webapps.
Possible reasons to *want* to connect a spectrometer to the smart device:
- Minimise the UI on the spectrometer (this may not be a good goal, but it would help to reduce the cost of the spec itself to the user)
- Do more processing of the data. I'm not sure how much analysis you'd *want *to do without a PC though.
- Simplify the spectrometer itself (but you're just shifting the complexity elsewhere)
@sfcgeorge That's awesome, and yeah a QR code sounds good for visually transferring data! I'm a bit wary of the inbuilt complexity (image recognition stuff is required but is obviously built into phone OSes). That transfer rate is great though - even with a smaller QR code on a lower resolution screen it'd be plenty!
A Mastodon instance for Rubyists & friends