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cnlohr / colorchord

Chromatic Sound to Light Conversion System
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Switch digital pinout to TX? #55

Closed opus506 closed 6 years ago

opus506 commented 7 years ago

Is there a way I can switch the digital pinout to TX? I received a new type of board that has power drivers already builtin and am unable to change the pins they are connected to.,

opus506 commented 7 years ago

esp led baord

cnlohr commented 7 years ago

"Digital output pin" what do you mean?

opus506 commented 7 years ago

Currently the RX pin that is used to output the digital data to the LEDs.

cnlohr commented 7 years ago

Ah, that's because that's the only pin that the I2S engine is connected to. No other pins can be used for mid- or high- performance WS2812B output, that I'm aware of. Is there a project that says otherwise?

opus506 commented 7 years ago

the ws2812fx project gives the option to use gpio 0 or 2. I'm not not sure if it's a different circumstance or not.

cnlohr commented 7 years ago

It says free of delays but then relies on the NeoPixel library, which does effectively delay by spinning. There's not really time to spin and do LED work when you're doing all the crazy audio processing :-/. It could be ported and could probably support 20 pixels or so but I don't have code ready to do it. All you would have to do is swap out the functions in the ws2812_i2s.c file.

opus506 commented 7 years ago

ok wow. I understand now. I'll just modify the hardware ever so slightly.

Thanks

On Nov 6, 2017 16:10, "CNLohr" notifications@github.com wrote:

It says free of delays but then relies on the NeoPixel library, which does effectively delay by spinning. There's not really time to spin and do LED work when you're doing all the crazy audio processing :-/. It could be ported and could probably support 20 pixels or so but I don't have code ready to do it. All you would have to do is swap out the functions in the ws2812_i2s.c file.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/cnlohr/colorchord/issues/55#issuecomment-342271198, or mute the thread https://github.com/notifications/unsubscribe-auth/APLfvx4zyhsRQqvOnfIN9_VGxtJC5udfks5sz2e-gaJpZM4QQcZz .

cnlohr commented 7 years ago

I would also point out to the manufacturer that it would be good if it could be configured.

Another option is SPI output, though I haven't messed with it.

cnlohr commented 7 years ago

Maybe GPIO13. But TX(GPIO3) code's already done.