Wireless TOSLINK audio. Holy crap, I ran out of desk and it still works. Using two shitty plastic lenses from IKEA lamps. 96kHz 24bit uncompressed. Take that, Bluetooth!pic.twitter.com/Rus4rLaTt8
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Brings to mind an experimental cheap optical link I made in my 1960s teen years. Tx was a torch (had to be “on” for dc bias) with an audio amp (>2W) ac coupled across bulb. Rx was OC71, with paint scraped off, feeding amp/speaker. Worked across room, but how things have moved on!
Speaking of across the room... https://twitter.com/marcan42/status/1010511381622185984 … I have no idea how this worked, but it did.
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There is actually a resistor on board the laser (it's meant for 3V 40mA). It's quite underdriven anyway, probably due to the wimpy drive strength of the S/PDIF encoder IC. It definitely won't pump out 40mA so I could probably get away with shorting the resistor.
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Fascinating thread (follows!). Haven’t tried any of this but strikes me how cheap laser modules are in US. Also UKmax pointer power allowed is 1mW, but 5mW in US, not that this is relevant here!
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