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Topic: Really universal soldering controller (Read 818783 times) previous topic - next topic

Re: Really universal soldering controller

Reply #3750
yellow wire "SLEEP" (HOLDER).

https://youtu.be/wi3et1iunR8

And where do you get power for the sleep board then? And what sleep has to do with iron's connector?

You are creating ground loops and power loops this way, which penetrate the temperature reading. The sleep board SHOULD get his power from the back PCB and EARTH SHOULD NOT be connected to anywhere but only to tip's outer shell. Power ground (GND) SHOULD NOT be connected with EARTH in any way, NOWHERE!

With this said, DC power supplies that have internal connection between EARTH and "-" are not suitable for this controller when you intend to connect tip's outer shell to EARTH.



Re: Really universal soldering controller

Reply #3752
Strange  :o ! I use the same simple old touch sensing board 'DinikS' and 'minkok' came up with a couple of years ago.

Also there were no problems with the sleep board, the first time I encountered this behavior. what is most interesting with the firmware below the version works.

Re: Really universal soldering controller

Reply #3753
Is your sleep board connected with the 245 handle?




Re: Really universal soldering controller

Reply #3757
OK

Re: Really universal soldering controller

Reply #3758
The problem can also be constructive, if you tighten the sleep sensor board to the body harder, then the probability is high that gnd and the body will close and then the swing begins with the search for the unknown

Re: Really universal soldering controller

Reply #3759
Done.
I WON'T move anything else! The 4-layer boards are almost finished now.

Thanks! I think it's an improvement to use locking type connectors, because these fan connectors come loose too easily.

Re: Really universal soldering controller

Reply #3760
Funny, I love fan connectors and use them wherever possible, for the display, the buttons. I think they have the perfect hold and moreover, the connectors crimp a lot easier for me

Re: Really universal soldering controller

Reply #3761
Thanks! I think it's an improvement to use locking type connectors, because these fan connectors come loose too easily.

I am not using fan connector there. Look at the pictures at the start of the thread. My connector also have some kind of lock. And the contacts crimps easy.

 

Re: Really universal soldering controller

Reply #3762
4-layer boards revision 5.2C published here:
https://github.com/sparkybg/UniSolder-5.2/tree/main/gerber

Updated schematics here:
https://github.com/sparkybg/UniSolder-5.2/tree/main/schematics

- 4 layer boards for front, back and OLED, with better routing (should be dead silent now)
- Added protection and filtering on ID MCU pin
- Slightly modified filtering of SLEEP signal
- SLEEP connected to ADC for future support of tip-change
- Removed 7-segment indicator headers
- Added header for rotary encoder
- Changed connectors between front and back boards from 4 to 6 pin, for separate power line to OLED display
- Added filtering between OLED and analog/MCU power
- Changed input diodes to DPAK FERD diodes (any diodes will work, FERD are just the best choice)
- Changed the TVS to SMC package
- Changed fuse holder to one-side SMD to be able to mount heatsink on the back board easily if further cooling is needed

The BOMs need to be updated (added 11 capacitors, 1 resistor, 1 inductior, changed 2 connectors). I don't know when I will be able to do this, so feel free to participate. There are no new positions, just quantity of some of the components goes up, apart from changed diodes, TVS and connectors.

Nothing is tested so far. If someone starts to sell assembled boards, let me know - I won't have enough time in the near future to assemble one myself, so I will have to buy one.

And, the last but not the least - the big (maybe) difference will be seen from persons using larger displays that have larger current consumption and noise. For example on my controllers with 0.96 displays, the difference will be really small, if any at all, so the old boards behave pretty much the same on majority of cases, and there is no need to buy the new ones, expecting a miracle, if you didn't have problems with noise so far.

Re: Really universal soldering controller

Reply #3763
Hello, bom watch do not know when to provide it? Some of the changed packages need to be compared, and the PCB is already in production. Need to verify to see. Thank you for your efforts

Re: Really universal soldering controller

Reply #3764
4-layer boards revision 5.2C ZofzPCB Screenshots: