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ManiacalLabs / PiPixel

Rasperry PI & Digital LEDs Simplified
https://maniacallabs.com/products/pipixel/
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Length limits? #2

Open drewcovi opened 7 years ago

drewcovi commented 7 years ago

apologies as this is a bit of a n00b question: any limit on LED count? I know the AllPixel Mini drives north of 700.

adammhaile commented 7 years ago

SPI is limited to 4096 bytes so it depends on the LED type and the rpi_ws281x interface has no limit other than speed.

Please post to https://groups.google.com/forum/#!forum/maniacal-labs-users in the future :) We will be closing down issues here and exclusively using that for support.

adammhaile commented 7 years ago

See this for increasing the SPI limit: https://github.com/ManiacalLabs/PiPixel/blob/master/Usage.md#led-count-limits

ianmaddox commented 5 years ago

What's the current limit across the Strip HAT? How many 50mA LEDs can I drive before this thing is overloaded?

adammhaile commented 5 years ago

Power-wise, 5A if you use the attached barrel connector. So 5000mA / 60mA = 83 leds. 60mA is typical max per pixel. In reality you can probably run ~300 if you don't do all white.