Connecting Raspberry Pi 5 to Leviathan Board

[RavenReplicator]

Hello everyone,

I’m currently building a Voron 2.4 using the LDO kit, which includes the Leviathan control board. I intend to connect it to a Raspberry Pi 5, but I’ve discovered that the necessary Raspberry Pi 5 HAT adapter is missing from my package.

I have a few questions and would greatly appreciate any guidance:

1. What are the alternative methods for connecting the Raspberry Pi 5 to the Leviathan control board without the HAT adapter?
2. Where can I find or purchase the specific HAT adapter required for this setup?

Thank you in advance for your help!

 

[Sanity Agathion]

Hat adapter? You mean the little pcb to connect Pi via UART? Contact seller if it was not included in package. Crimp your own harness meanwhile, just a few short wires and Dupont connectors on Pi, JST XH on Leviathan.

I am not sure if the board will provide enough power for RPI 5... you may need to use external power source if it does not. Pi5 is hungry.

 

[RavenReplicator]

I connected RP5 just using the wires with dupont connectors, it started up but halted in the mid of klipper installation, I think due to insufficient power. I swapped it with my old RP3, works so far. I think I will need to power RP5 with a separate supply. Is there a recommended power supply?

 

[lord-carlos]

If you connect via dupont headers, make sure to use multiple. Even on pi3 just connecting two (ground and hot) was often not enough.

If you want to power the pi5 via USB C, make sure it can deliver enough amps. I think you need 5V 5Amp or something silly like that. Read up on it. There are not many 5v USB C that do that. At least if you don't want the pi5 to clock down. Though even when it clocks down it should still be faster then a pi4. But you get that pesky red error message in klipper ui.

 

[NoGuru]

This makes me want to upgrade to a PI5 but have to consider a few things first.

 

[NewGradRN]

Hello everyone,

I’m currently building a Voron 2.4 using the LDO kit, which includes the Leviathan control board. I intend to connect it to a Raspberry Pi 5, but I’ve discovered that the necessary Raspberry Pi 5 HAT adapter is missing from my package.

I have a few questions and would greatly appreciate any guidance:

1. What are the alternative methods for connecting the Raspberry Pi 5 to the Leviathan control board without the HAT adapter?
2. Where can I find or purchase the specific HAT adapter required for this setup?

Thank you in advance for your help!

Hi there, I bought the same kit as you did "LDO Voron 2.4 R2 Rev D" and the board you mentioned to connect Raspberry Pi is missing as well. Did you find another source for it and did you get RPi 5 working on your printer? Appreciate your input. Thanks

 

[RavenReplicator]

I eventually used an old rpi 3 and connected with usb for data and this adapter connector for power.

 

[Joffe]

@RavenReplicator, I just ran into the same issue and then it hit me, the GPIOs are exactly the same for pi4/pi5, so why did the make a different top hat ?? ... when you put the top hat on in the pi4 and below orientation the sauter points on the tophat are shorted out by the pi5 heat sink. I'm running power to the pi5 via usb and I had to put a bit of paper between the hat and the heatsink ...


Will update how it goes, but I'm guessing its as simple as that. Really the design team should replace all top hats with the pi5 version going forward, but maybee I'm missing something ...