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ISSUE raspberry pi 3+ - hyperion

Discussion in 'Software Support' started by filipe teixeira, 29 January 2021.

  1. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    619
    Hardware:
    RPi3
    Yes that is correct,

    Again, PSU is mostly explained in Watts.
    So it's a calculation of Amps x voltage = total consumption power
     
  2. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    619
    Hardware:
    RPi3
    4 x 60 = 240 leds x 0.049 milliamps = 11,76 Amps at full brightness of leds, so maximum draw of current for leds

    + 2.4 amps of raspberry
    = 14,2 Amps.

    Or almost 75 Watt on 5 volts

    So for something extra power go for 100watts / 20 Amps PSU
     
    Last edited: 16 February 2021
    • Agree Agree x 1
  3. filipe teixeira

    filipe teixeira Member

    Messages:
    36
    Hardware:
    RPi3
    Then to be assured for my set 4 meters 60 leds per meter and rpi 3b+ I will go for a PSU 5V 20A - 100W it’s the best option?

    PS: I only see your answer after I written mine.
    One more time thank you very much for your help @jeroen warmerdam :)
     
  4. davieboy

    davieboy Active Member

    Messages:
    242
    Hardware:
    RPi1/Zero, RPi2, RPi3, RPi4
    @jeroen warmerdam has already wrote it @filipe teixeira

    4 meters @ 60/m = 240 LED's
    240 (leds) x 0.06 (Max working current per LED) = 14.4A
    Raspberry Pi 3 Model B+ 2.5A(Recommended) 1.2A(Maximum total for USB draw) 500mA(Typical bare-board active current consumption)

    14.4 + 2.5 = 16.9A

    Ideally a 5v, 20A should do the job, you want to have extra in the PSU that you don't use rather than your PSU being used 100% and struggling to cope with the demand.

    Your LEDS may not use anywhere near that 14.4A mentioned but calculating it that way means even if they do you wont have any problems powering them
     
  5. davieboy

    davieboy Active Member

    Messages:
    242
    Hardware:
    RPi1/Zero, RPi2, RPi3, RPi4
    ignore that i was too slow on my reply :LOL: I don't want to confuse anything further
     
  6. filipe teixeira

    filipe teixeira Member

    Messages:
    36
    Hardware:
    RPi3
    Hi again.

    can someone help me to found a dc connector in order to work with my power supply? I have search on Aliexpress but I don’t find


    Thanks in advanced
     
  7. davieboy

    davieboy Active Member

    Messages:
    242
    Hardware:
    RPi1/Zero, RPi2, RPi3, RPi4
    roll of red & black wire and a terminal block springs to mind? or isolated terminals - male & female
     
  8. filipe teixeira

    filipe teixeira Member

    Messages:
    36
    Hardware:
    RPi3
    Good question.

    Since I have 2 jacks male and female ( picture attached) I think I can use this so I only need red and black wire.

    Or can you give me for roll of red & black wire and a terminal block springs
     

    Attached Files:

  9. filipe teixeira

    filipe teixeira Member

    Messages:
    36
    Hardware:
    RPi3
    i made a image from my project.

    My project will have:

    (4 meters @ 60/m = 240 LED's)
    My tv will have - 188 leds on total x 0.06 (Max working current per LED) = 11.28A (i have a PSU 5V 20A)
    Raspberry Pi 3 Model B+ 2.5A - independent power supply (usb type c cable)
    Wire for connect the PSU - i use a wire 14awg (max 20A please see the image attached)

    I will connect one wire at RPI - GPI 18 to green data wire at led strip connector
    One ground wire RPI to the black wire led connector.

    Could you please tell me if its ok like this my project? project BKP.jpg 14awg wire.jpg
     
  10. jeroen warmerdam

    jeroen warmerdam Raspberry 3B / APA102 / Hyperion.NG relaisbox

    Messages:
    619
    Hardware:
    RPi3
    go for it, looks good.