Hyperion hypercon problem no green and white lights

  • Hard to tell, most likely though I'd guess it's an electrical connection problem. Just re-read the thread and you didn't mention if you used a 3.3V>5V level-shifter (eg 74HCT08 or 32) between the RPi and the LED strip. Without it operation will be borderline and it could be that you just were lucky it worked on the RPi3.


    so long,


    Hias

  • Hi,


    maybe that could be the problem. But I also found topics on the hyperion site and people got it working without the level shifter.

    Do you have an picture of the connection hoe you made the level shifter between the rpi and the led strip?


    many thanks

  • I'm not using a level-shifter myself, I use a "Adalight" / Arduino to connect the LED strip. The Arduino outputs 5V signals so there's no problem to drive the WS2801 (which require a minimum of 4V for logic high input signals).


    The 74HCT00 circuit on the hyperion wiki Supported hardware | Hyperion - Forum looks fine, if you build it yourself don't forget to connect +5V from the RPi to pin 14 and GND to pin 7 of the 74HCT00 - that small detail is missing in the schematic (buit their PCB looks OK).


    so long,


    Hias

  • Sorry, don't have a picture - the board is tucked behind my wall-mounted TV.


    It's just an Arduino Pro Micro clone with the Adalight Ledstream sketch, connected to RPi via USB. There should be plenty of info on the 'net.


    so long,


    Hias

  • I understand you. And which led strip you are using with that sketch?


    I will let you know if I buy the rpi4 again.


    Many thanks

  • Hi there,


    Okay that sounds fine. And which sketch did you use on the arduino?

    And what should be the settings at: hardware instead of ws2801?

    And how did you connect the led strip to the arduino and pi then?

    I think without jumper cables :)


    Many thanks

  • Arduino sketch is on github ledstream.pde


    Depending on which Arduino (clone) you use you may need to modify the source (see comments at the beginning) and some of the smaller/cheaper boards require you to solder in the 0.1" connectors yourself.


    Just make sure you get an Arduino with Atmega 32u4 (this is the one with USB built-in, the older/other Arduinos with separate USB/serial chip won't work well as communication will be too slow).


    In hypercon / hyperion.config.json set the type to "adalight" and port to "/dev/ttyACM0"


    For other details about arduino stuff and the Adalight / ledstream sketch just search the net, there are tons of infos out there.


    so long,


    Hias

  • Hi,


    i have an arduino uno clone with atmega 328p
    is this okay?


    And how do I solder it on the led strip the data cable which will go the the arduino power port?


    many thanks

  • No, go for Atmega 32u4 only - the other ones without built-in USB will be a PITA


    Just solder the connector pins to the RPi and then cable up the LED strip as usual (eg with DuPont wires).


    so long,


    Hias