Author Topic: Youyue 858D+ some reverse engineering + custom firmware  (Read 202190 times)

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Offline Fleetz

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #675 on: September 04, 2018, 10:36:04 am »
Is there a differences in features and or functions between the 858D and 858D+ models?
 

Offline Nisei

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #676 on: September 14, 2018, 11:46:14 pm »
I've just received an unbranded 858D+ from AliExpress (shipped from Germany).
It has plastic front and back panels and the temperature goes up to 500 degrees.
Does anyone know anything about this clone?

 

Offline bitseeker

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #677 on: September 15, 2018, 09:47:11 am »
Looks like all the others. Same enclosure. Different color. You'll have to open it up and post pics to find out more about it.
You don't acquire TEA. It acquires you.
 

Offline Nisei

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #678 on: September 15, 2018, 07:20:02 pm »
Yeah I only took a quick pic to show it goes up to 500 degrees.
Here's the board. As you can see there's nothing printed on the IC.
Any idea what it may be? I was expecting a Kaleep branded one since that seems to be the only black front panel version around but it turned out to be unbranded.
« Last Edit: September 15, 2018, 07:24:01 pm by Nisei »
 

Offline bitseeker

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #679 on: September 16, 2018, 03:19:45 am »
Yeah, even the vendors don't know what they're going to get. One was smart enough to say that if a particular internal design is important to you, don't purchase this product.

I'm not able to tell immediately which IC that is since there have been several 20-pin microcontrollers discussed here. Maybe someone more familiar with them will be able to chime in with more info. However, it's definitely not an ATmega328p (32 28 pins) as used in the early models.
« Last Edit: September 16, 2018, 08:35:24 am by bitseeker »
You don't acquire TEA. It acquires you.
 

Offline Fleetz

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #680 on: September 16, 2018, 04:15:02 am »
However, it's definitely not an ATmega328p (32 pins) as used in the early models.

ATmega328P has 28 pins...

Yes I was told by an Aliexpress seller if you are definitely wanting a 858D+ with an Atmel processor then buy somewhere else.

Can’t seem to find a brand that has any reasonable certainty of Atmel inside. Buying a YouYoe brand is no guarantee as I have seen a number of different processors used.

If anyone has recently bought a 858D+ from Aliexpress or eBay that has an Atmel that can be tweaked would appreciate letting me know.
 

Offline bitseeker

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #681 on: September 16, 2018, 04:34:52 am »
Apparently, some part of my brain was thinking about the TQFP version. D'oh! Corrected my post. Thanks, Fleetz.
« Last Edit: September 16, 2018, 08:36:33 am by bitseeker »
You don't acquire TEA. It acquires you.
 

Offline Nisei

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #682 on: September 16, 2018, 07:14:30 am »
Page 24 of this thread.
Almost sure it's an MK1840D3
But thanks for the replies.
 

Offline stan23

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #683 on: September 20, 2018, 11:16:16 pm »
PCB-Version: 858D06 (Version 6, both sides are green and mainly SMD components)
Microcontroller: MK1840D3

Build or order the adapter PCB designed by GiantGnome/wgujbas
This is necessary because madworms firmware is designed for the YouYue-Version, which uses an ATMEL micro controller.
The one which is installed on the UVISTAR (MK1840D3) is something like a SAMSUNG clone.
Both uC's aren't pin-compatible, hence we need an adapter. Furthermore, the YouYue-PCB-Version is reporting the fan speed to the micro controller, the ones with an SAMSUNG or MK184... uC are not, therefore we need to place additional components on the adapter (for reading out the fan speed, giantgnome and wgujbas are using simple voltage dividers to extrapolate from the FAN-Voltage - which is set by the potentiometer - to the FAN-Speed)


Giantgnome postet his PCB here
You can simply order a bunch of three pcb's for 5$ here (includes shipping worldwide!)

I also have two PCBs left, and I'm located in Germany as well. Anyone interested?
 

Offline Fleetz

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #684 on: Yesterday at 06:02:34 pm »
Seems like it is a bit like Russian Roulette with what device, what board etc when it come to buying these things.

Is the a brand/model and or Aliexpress supplier that at least you know that your getting a unit that can be modified albeit with an adapter PCB? Or at least a unit that was prchased recently where there might be a chance that the same unit that is modifiable?

Cheers... 
 

Offline Nprod

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Re: Youyue 858D+ some reverse engineering + custom firmware
« Reply #685 on: Today at 02:47:37 am »
I've just received an unbranded 858D+ from AliExpress (shipped from Germany).
It has plastic front and back panels and the temperature goes up to 500 degrees.
Does anyone know anything about this clone?

This looks a lot like the "Kaleep" 858D which was only sold in Germany, except without the Kaleep  :) It should be a MK1840D3 board that needs an adapter for the Atmega and the usual fixes.
 


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