Design a New Precision LCR Tweezers with Much Lower Cost 【Shannon Tweezers ST42】

[tautech]

Please can I have some little guidance ?

Device Manager:


Find your port as mentioned above, then go to your firmware update folder and run the command with the com port info.

It might look slightly different whether you use powershell or command prompt, but it works either way.

Command Prompt:


Power Shell:



If that's not big enough for ya, I can zoom the text in more. 😉😉

Perfect ! 
Many thanks. 

The exact syntax was what I needed. 

[SilverSolder]

Any way to make the firmware update app run on Win 7?

[KungFuJosh]

Any way to make the firmware update app run on Win 7?

What happens when you try?

[SilverSolder]

Any way to make the firmware update app run on Win 7?

What happens when you try?

I can't run the application, it complains about a missing DLL.

[KungFuJosh]

Any way to make the firmware update app run on Win 7?

What happens when you try?

I can't run the application, it complains about a missing DLL.

It would be helpful if you could provide a screenshot showing which DLL.

[ono]

One little new suggestion to Shannon. Can we please please show [A] OL. in auto-mode, instead C OL. Otherwise there no way to tell if we are in manual C or auto A when not attached to DUT. Thank you!

[Hydron]

One little new suggestion to Shannon. Can we please please show [A] OL. in auto-mode, instead C OL. Otherwise there no way to tell if we are in manual C or auto A when not attached to DUT. Thank you!

+1 to this suggestion

[Shannon]

Please can I have some little guidance ?

Device Manager:

Find your port as mentioned above, then go to your firmware update folder and run the command with the com port info.

It might look slightly different whether you use powershell or command prompt, but it works either way.

Command Prompt:

Power Shell:

If that's not big enough for ya, I can zoom the text in more. 😉😉

Hi KungFuJosh,

Thank you so much! Compared with our video, it is really much clearer.

We are trying to update the video to a higher resolution, I always thought that our video was clear, but my network has a problem,
which caused the displayed resolution to be insufficient, and I found out that the highest resolution is 480, too poor

Can we put these pictures you provided on our official website, it will be of great help to our users 

[KungFuJosh]

Can we put these pictures you provided on our official website, it will be of great help to our users 

You have my permission. 🙂

[SilverSolder]

Any way to make the firmware update app run on Win 7?

What happens when you try?

I can't run the application, it complains about a missing DLL.

It would be helpful if you could provide a screenshot showing which DLL.

Sure, here is what I am seeing:

[KungFuJosh]

Sure, here is what I am seeing:

You have a few options to fix that.

You can try the system file checker tool: https://support.microsoft.com/en-us/topic/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system-files-79aa86cb-ca52-166a-92a3-966e85d4094e

One guess is that it might be related to Visual C++, which you can get here: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170

This guy's options might work:

[MegaVolt]

One guess is that it might be related to Visual C++, which you can get here: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170

I would add that most likely the libraries need to be installed for x32 and not for x64. Even if your operating system is x64.

[SilverSolder]

Sure, here is what I am seeing:

You have a few options to fix that.

You can try the system file checker tool: https://support.microsoft.com/en-us/topic/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system-files-79aa86cb-ca52-166a-92a3-966e85d4094e

One guess is that it might be related to Visual C++, which you can get here: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170

This guy's options might work:

That helped, but now there is a different problem!

Error loading Python DLL 'C:\......\_MEI2411802\python311.dll'.
FormatMessageW: The parameter is incorrect.
LoadLibrary: PyInstaller: FormatMessageW failed.


Is the updater using Python?

[KungFuJosh]

That helped, but now there is a different problem!

Error loading Python DLL 'C:\......\_MEI2411802\python311.dll'.
FormatMessageW: The parameter is incorrect.
LoadLibrary: PyInstaller: FormatMessageW failed.


Is the updater using Python?

Try installing the Visual C++ stuff.

[dpenev]

I am having a strange behavior of my tweezers battery/charging. I have not been using it for few weeks and today I tried to use it.
Each time I was trying to switch it on it says low battery and switches off automatically after 5 seconds.
So far so good. 
I took the original usb cable and connected the tweezers to my computer. Immediately it said VBUS 5.05V and battery 100%.
I have charged it about 1 hour but still after switching off and then switching on I got this low battery indication and tweezers auto switches off.
While connected to my PC I was able to measure the battery (System/Service/Battery) and it was around 2300mV.
I kept the tweezers connected for 10 hours. Now if I switch it off and on again it does not shutdown automatically but my battery indication is empty (at around 20%).
(System/Service/Battery) gives 3655mV now if tweezers is not connected to my PC and 3810mV if tweezers is connected to the PC

Shannon does this behavior normal? I think it is my second charging.
What is the typical charging time?
I am on the latest firmware

[dpenev]

Something definitely not OK.
After another 5 hours charging now it says low battery again and shutdowns itself.
Looks like bad battery/charging testing procedure.
Any advice ? 

[KungFuJosh]

Something definitely not OK.
After another 5 hours charging now it says low battery again and shutdowns itself.
Looks like bad battery/charging testing procedure.
Any advice ?

I would try a different charging cable just to rule out the cable, though it does sound like something is wrong with the device itself. You should also try reflashing the latest firmware.

[Shannon]

Something definitely not OK.
After another 5 hours charging now it says low battery again and shutdowns itself.
Looks like bad battery/charging testing procedure.
Any advice ?

First of all, I apologize for the inconvenience caused to you.

It seems that the battery is suspected to be over-discharged. This is the first time we have encountered this problem, so the rule is that we will help you solve the problem and give some gifts.

Can you tell us the SN number of your tweezers through PM?

[indman]

Del

[TheDefpom]

A semiconductor doesn't look at the RMS, it conducts based on the threshold voltage, so Vpp is the correct one to reference, the Vpp values look fine to me, as the 0.1Vpp will avoid most in circuit semiconductor thresholds, the 0.5Vpp will trigger some devices, and the 1Vpp will trigger some more.

[indman]

Del

[TheDefpom]

Why would I need to?

A semiconductor turns on at a specified voltage threshold, they aren't averaging the Vpp to turn it into RMS, they are reacting to the actual potential difference between two points, and a Vpp is the Min and Max of the voltage, the difference between those levels is the voltage that a semiconductor will react to.

In some cases it could be the peak voltage rather than peak to peak, it really depends on the circuit in use, either way it isn't RMS.

[indman]

Del

[TheDefpom]

I do not say they are wrong ?

I'm saying your understanding of its meaning is wrong.

[indman]

Del