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Flickering leds (esp8266) #457

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eldoner opened this Issue May 30, 2017 · 3 comments

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@eldoner

eldoner commented May 30, 2017

I have a problem, with leds. Examples from library does not work properly, sometimes strip is only partialy lighted, and of course a lot of flickering. I use Nodemcu lolin v3 (esp8266). Everything is wired like there. There is common ground, resistor and capacitor. I use TXS0108E level converter to step up data line. I tried almost all pins on Nodemcu - no diffrence. Led type: WS2812B.

On the movie I use example ColorPalette, where I added:

#define FASTLED_INTERRUPT_RETRY_COUNT 0 
#define FASTLED_ALLOW_INTERRUPTS 0

I got an error too:

# pragma message "No hardware SPI pins defined. All SPI access will default to bitbanged output"

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MFornander May 30, 2017

See the FAQ and ask on the G+ group, not here please. GitHub is for FastLED library code issues and since examples have the same issue on your setup, it's not a FastLED issue. That said, I had trouble with cheaper level shifters from Ebay that went away with a more traditional 74HC245.

The message is normal since 8266 doesn't drive LEDs using SPI.

MFornander commented May 30, 2017

See the FAQ and ask on the G+ group, not here please. GitHub is for FastLED library code issues and since examples have the same issue on your setup, it's not a FastLED issue. That said, I had trouble with cheaper level shifters from Ebay that went away with a more traditional 74HC245.

The message is normal since 8266 doesn't drive LEDs using SPI.

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erhan- Jun 22, 2017

Same problem in similar setup but I am using SN 74AGCT125 N.
Check the voltage of your power supply. Maybe it's too much.

erhan- commented Jun 22, 2017

Same problem in similar setup but I am using SN 74AGCT125 N.
Check the voltage of your power supply. Maybe it's too much.

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debsahu Nov 14, 2017

Add these too:

#define FASTLED_ESP8266_NODEMCU_PIN_ORDER
#define FASTLED_INTERNAL

debsahu commented Nov 14, 2017

Add these too:

#define FASTLED_ESP8266_NODEMCU_PIN_ORDER
#define FASTLED_INTERNAL
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