lapot2
Raccoon
Last Activity: Yesterday, 06:28 PM
Joined: 10-06-2024
Location: Иное селение
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Yes, it will be a useful experience for both you and others. -
[URL="https://www.eevblog.com/forum/repair/i-screwed-calibration-in-my-uni-t-ut139c-dmm/"]I screwed calibration in my UNI-T UT139C DMM - Page 1[/URL]
Try doing this, and if it doesn't help, check everything else you asked.
But if you can't or don't understand how to measure all this, buy a new multimeter. It will be easier for everyone.
The readings changed by 1.2 times in all modes. I suspect that some reference source has drifted away, and with a very small probability that the calibration is damaged. But it is worth trying to calibrate.[URL="https://www.eevblog.com/forum/repair/i-screwed-calibration-in-my-uni-t-ut139c-dmm/"]ILeave a comment:
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Is the power supply OK? Digital multimeters start to lie when the battery is low. Usually the old ones overestimated the readings, but more modern ones can underestimate them.
This is worth checking first, including the internal voltage stabilizers.Leave a comment:
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Most popular programmers comparison table
[url]https://github.com/lapot2/Performance_of_chip_programmers/blob/main/README.md[/url]https://Most popular programmers com...EADME.md[/url]Leave a comment:
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I can’t attach photos of the design, various errors keep popping up.Leave a comment:
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Based on STC8H8K64U MCU.
Any devboard on such a MCU is suitable for assembly.
In cases with less than 64 pins, the LED will not be available unless you reassign it in the firmware.
One of the design types is attached.Leave a comment:
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Hello everyone))
I am a raccoon, an engineer for repairing laptops, PCs, TVs and any other electronic equipment.
I have been interested in repairing and designing electronics since early childhood, and have been doing this for over 20 years.
I recently started studying programming in order to develop modern devices that would be adapted to my tasks and the tasks of other similar repair engineers.
Because we are always limited only by the equipment that third-party developers offer us, who do not know the needs of repair engineers.
...Leave a comment:
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The Best and Fastest BIOS Flasher for Modding Under $2
Recently, the [B]Raccoon Flash Explorer[/B] programmer has appeared.
It allows you to flash BIOS chips from any device without installing programs and drivers, and also very quickly make small changes without a long rewrite of the entire memory to change a few bytes.
Very easy to use and intuitive, even a housewife can handle it.
You can use absolutely any system binary file editor (HxD, WinHex, etc…) on any operating system, the possibilities are not limited by the ugly built-in editor like other programmers.
It has full cross-platform support,...
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