[sdiy] Coloured LEDs

[charlie wallace]

Cypress PSOCs are a good solution since you put the whole protocol in
their blocks and leave the rest of the CPU to do other stuff, the
APA102 RGB leds are a lot less forgiving timing wise than the WS28112s
and are SPI, i ran a  thousand or so of the WS2812 for xmas lights
from PSOC4s and ESP8266s, 300 per PSCO4 i didn't try more since RAM
was tight.


On Sun, Feb 19, 2017 at 11:47 AM, Ingo Debus <igg.debus at gmail.com> wrote:
> [Shenzen LEDs]
>> Am 18.02.2017 um 18:11 schrieb paula at synth.net:
>>
>> They are rather sexy, however if you have an arduino/teensy I think libraries exist to drive these for you :)
>
> They’re quite processor-power hungry. As I understand it, the timing requirements are very tight. If the control signals are generated by bit-banging, the processor can’t do much else while LEDs are addressed. Some processors have PWM outputs that can be mis-used to generate the signals, but this looks like an ugly hack to me.
>
> Ingo
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