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BTT Octopus V1.1 w/ Marlin 2 - status light keeps flashing

Remon Pel

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Hi all

I have been prototyping a BTT Octopus + BTT MiniLCD 12864 replacement package for my Tenlog TL-D3 Pro and have everything working so far.

All 2209 UART, sensorless homing on X and Y, BL Touch (Still need to figure out how to use the dual optical sensors for homing and BL Touch for ABL only)

I have done a heating test for both bed and hot-ends; everything is working fine, except; the status light in the "middle" of the board keeps flashing.

Why? Anyone have any idea?

(See photo; circled and arrowed; yes it is off in the picture, 50/50 chance, innit 😉 . Trust me, it's flashing. Also; yes; only 5 motors for a 7 motor set-up; I only have 5 spare motors, but yes, I tested all 7 axes. Also; no heaters or fans attached, but that did not make a difference either)


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The status light in the "middle" of the board keeps flashing: this is normal.
How to use dual optical sensor for homing: this you need to provide the model of the sensor,
Then check whether it can be adapted to our motherboard, the motherboard can support up to 5V homing sensor.

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  • 1 year later...

Hi Robert,

I'm seriously considering upgrading my D3 pro to the BTT Octopus with Marlin - I think KIipper (which I love on several of my other printers) needs a bit more massaging for IDEX.

Can you share - did you get the beast working perfectly?  Can you share photos of any adapters you may have made for the connectors to go to the board?  any photos?

might you be wiling to share your Marlin code, and at least as importantly,

What advice and/or suggestions might you have?  Are you glad you did it?

I find myself with an SD slot that is finicky, so I'd likely change to the Tenlog wifi board, if at all.  For less money, I see myself with something more configurable.  I'd repurpose one of my pi 4bs until they become more reasonable in price in the future.

Again, any help or suggestions appreciated!!!!

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