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BUG Hyperion.ng: random flickering because of webcam?

Discussion in 'Bug Reports' started by bigbossfr, 26 April 2019.

  1. TPmodding

    TPmodding Administrator Staff Member Administrator

    Messages:
    1,280
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +nodeMCU/ESP8266
    wait a second: did you powered your leds through the esp?!
     
  2. bigbossfr

    bigbossfr New Member

    Messages:
    22
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    Yes!
    So if I do this with the ESP connected (using Wifi) to the Rpi, this is flickering:
    [​IMG]
    If I turn off the Rpi, and let the ESP gives the default color (when there is no connection to the Rpi), this is NOT flickering (so the power supply is good, but I guess the ESP doesn't update the LEDS).

    If I do this, with the ESP connected to the Rpi, and powered only by usb, this is not flickering (but the light are not very bright):
    [​IMG]

    Tested with ESP8622, ESP32, a level shifter 74AHCT125, a capacitor at the +/- of the power supply, without, a resistor between the ESP and clock/data LEDS, without, etc etc.

    What do I am missing here? Months that I try to understand what am I doing wrong.
     
  3. TPmodding

    TPmodding Administrator Staff Member Administrator

    Messages:
    1,280
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +nodeMCU/ESP8266
    Try this Bildschirmfoto 2019-05-25 um 11.23.01.png
     
  4. bigbossfr

    bigbossfr New Member

    Messages:
    22
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    This is flickering.
    Any other ideas please?
     
  5. bigbossfr

    bigbossfr New Member

    Messages:
    22
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    Re-tested again, the only one that is not flickering is:
    [​IMG]

    But I don't want to power leds with the esp, obviously.
    This is no sense, isn't it?
     
  6. bigbossfr

    bigbossfr New Member

    Messages:
    22
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    @TPmodding, I tried again what you proposed with (and without) a 74AHCT125 on the data/clock line, and this is still flickering.
     
  7. TPmodding

    TPmodding Administrator Staff Member Administrator

    Messages:
    1,280
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +nodeMCU/ESP8266
    hm weird, do you have antoher one to test?
     
  8. bigbossfr

    bigbossfr New Member

    Messages:
    22
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    You mean another ESP?
    I tried with 2 different ESP32 + 2 different ESP8266.
     
  9. bigbossfr

    bigbossfr New Member

    Messages:
    22
    Hardware:
    RPi1/Zero, RPi3, +nodeMCU/ESP8266
    Another 74AHCT125?
     
  10. TPmodding

    TPmodding Administrator Staff Member Administrator

    Messages:
    1,280
    Hardware:
    RPi1/Zero, RPi2, RPi3, +Arduino, +nodeMCU/ESP8266
    did you checked if you get some 5v output signals?