Another quick Pico-based game...

Is now here: http://www.espruino.com/Pico+Wire+Loop+Game

https://youtu.be/uyOHnJVVBiI

Awesome! I think I'll teach my youngest brother (11yo) a bit of programming and make this with him the next time I'm home. Classic! :)

Nice.... and at the same time it could even a musical instrument - could it? (put a frequency to the wire and try some capacitive detection?

:) Maybe... generally you need a resistor for the capacitive sense though. I need to do some more experiments with that and Espruino.

Theremin is the term and instrument I had in mind... just could not recall the details right away...

@alexanderbrevig - you may like this... one person - one organ pipe of variable tuning!

I've already made a theremin once (though using an LED) ;) I posted the library under my AlphaBeta alias over at the Arduino camp some years ago. Not sure it can be found because I deleted a lot of stuff from my wiki at some point...
It's difficult to play professional theremins, and a dumb implementation with trickery makes for impossible-to-play noise gens.

I had mine skip between notes in a scale (minor, major and pentatonic) then I had a pot I could turn to change between them. That one made it sound OK but was not as fun to play, of course :)

I had mine skip between notes in a scale

Ahh, an auto-tuned theremin? :)

I think to get proper capacitive sense on Espruino you'd really have to set up the hardware timers. Doing it with software is possible, but probably not very good.

Spot on (re; autotune)!

It could be a shim as well, that simply feeds back a voltage (or pwm, or freq?) as a function of the cap.sense. Should be doable with a small attiny85 or some such. (Probably way too overkill for the feature though.. my head just started spinning).

Maybe it's a project for showcasing your Dream Protoboard @DrAzzy? ;)

I've got some tiny85 proto boards being fabbed right now ;)

Brilliant!

get proper capacitive sense on Espruino you'd really have to set up the hardware timers

Some physical/digital hardware and even more so analog stretches my confort zone! So I'm all ear...

After doing some more poking in the Web I found several applications that use light intensity versus RC/LC circuits. RC/LC could still be part in the line before going to analog amp / speaker.