Really universal soldering controller

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Re: Really universal soldering controller

Postby bjornsundklakk » Thu Jan 03, 2019 6:25 pm

Halleluja - thanx to Sparkybg You and myself I now have 2 X unisolder 5.2 up and running.
I just successfully flashed the bootloader in the two boards with MPLAB X IPE V5.10, and MPLAB X IDE V5.10 in the background. then firmware via *.exe file. Peep peep - lucky me ;-)
What`s left is some calibration and testing of different Soldering irons/elements.
It`s strange, when you think you have done everything right - I forgot to solder C27 on one board and one end of R47 was not soldered at all -- hmmpfff. Except from that, I got everything right in the first try so far.

PS: I used Pickit3 (guess its a clone) to flash the bootloader. Then I installed the firmware file `US_Firmware.X.production.hex` via the program UniSolder.exe. The firmware is dated 03.04.2017, I guess its the latest compilation from sparkybg ?
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Re: Really universal soldering controller

Postby db9mat » Sun Jan 06, 2019 4:43 am

afedorov wrote:
minkok wrote:Check P2/ pin2 to GND.

You're completely right, it should be the reason! GND is back powered periodically by SPI pins and while current consumption is low, charge of the capacitors is enough to provide power until the next update.


Thank you both so much. This was the culprit - while the solder joint looked good, the OLED PCB didn't have a proper connection to GND. Resoldered and now it's working perfectly :) Next up is a case and a replacement middle button which I abused a bit too hard with my hot air station :/

Again, thanks a lot!
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Re: Really universal soldering controller

Postby Morpheus1979 » Tue Jan 08, 2019 3:52 am

I received the vinyls for the aluminum case yesterday - so i was finally able to finish my unisolder case:

Image Image Image

The touch sensor board inside the holder seems to work as well. But i have the same calibration problem as described by 'minkok'... so i'll try to replace R57 & R59 too.
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Re: Really universal soldering controller

Postby Tony » Tue Jan 08, 2019 7:37 am

Hi! Morpheus1979

Make ventilation holes in the housing.
The temperature in the housing rises by a few degrees!
Do not forget about U4 and its purpose.
Replacing R57 & R59 is a good idea. I did the same.
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Re: Really universal soldering controller

Postby Tony » Tue Jan 08, 2019 7:50 am

Morpheus1979 wrote:I received the vinyls for the aluminum case yesterday - so i was finally able to finish my unisolder case

The housing is beautiful, I congratulate you.
HNY 2019
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Re: Really universal soldering controller

Postby Doomedahab » Tue Jan 08, 2019 10:34 am

Morpheus1979 wrote:I received the vinyls for the aluminum case yesterday - so i was finally able to finish my unisolder case:

as described by 'minkok'... so i'll try to replace R57 & R59 too.


Very nice work! Where did you order the vinyls if I may ask? Would you be willing to share the design files?
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Re: Really universal soldering controller

Postby Morpheus1979 » Tue Jan 08, 2019 10:59 am

I ordered from arcadeartshop.de. They did an amazing job in terms of print quality and plotter cutting the transparencies of my PNG files:

Image Image
Last edited by Morpheus1979 on Tue Jan 08, 2019 11:17 pm, edited 1 time in total.
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Re: Really universal soldering controller

Postby Doomedahab » Tue Jan 08, 2019 11:09 am

thanks a lot!
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Re: Really universal soldering controller

Postby bjornsundklakk » Wed Jan 09, 2019 6:02 am

Nice - it works !!. I`v just programmed the sensor board with the `US_sensor.X.production.hex` file. The Hakko T12 tip cools down when i block the the sensors, and heats up again when iron removed.
My wishes for future firmware upgrades is some text or symbol that indicates what state the Unisolder is in, for instance; "standby" ,"holder", just as when it goes to Zzzzz. Not just the temperature falling or rising.
The set temperature in small fonts, would have been nice to have in one corner.
I think the software jumpes too soon out of the settings mode when I try to change the settings. There could have been dedicated "EXIT" in the settings.
It would also have been perfect to wake up the Unisolder from Zzzz with the push of a button. Is that hard to do ? does it require hardware changes as well as software changes ?
i`m not a good programmer so i doubt i can manage to do that myself . This is my first project with a microcontroller, and so many SMT parts, ever.

I find the whole ting about the Stand-by/sleep/Holder settings a bit confusing, but it works with the sensor. ;-)

A couple of stpd questions:

1 is "SLEEP TIME" and "STAND-BY" all measured is minutes ?
2 I understand that the Unisolder is totally switched off when in Sleep (Zzzzz) mode.
Does the setting "SLEEP TEMP" keep the temp up to the settings when its switched off and in sleep mode anyway ?
3 is it so that the "STAND-BY" fall out of function when you have the holder with sensor connected ?
4 I guess "HOL" means holder temp ?

I must honor this project an all the work you are doing. Thanks.
I`m planning to advance to a JBC iron further on in time, and then try to build the other sensor wich is based on touch (metal contact i guess) I also have to find some casing.
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