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Op 25 feb. 2022 om 19:02 heeft Nebojsa Tomic <nesk...@gmail.com> het volgende geschreven:
I just tried your cute program on my WIN 10, instalation was successful, but when I tried to do a ecc88 quick test, I get this message: "Lower the anode voltage point, becasue with the current stepping it exceeds 50V", anode voltage is set to 90V.
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Op 26 feb. 2022 om 18:21 heeft Ihor <iste...@gmail.com> het volgende geschreven:
I did the test on CHIP computer which has so called armv7, so it is the same as raspberry pi as far as I remember. I do not have any RPI anymore. But in any case, on that platform I do not compile executables, but just run uTracer.js with node. What it means is that you just have to be able to install Nodejs from the official website (https://nodejs.org/en/download/ and that one exists for all possible platforms) and then just execute uTracerJS as "node uTracer.js" from the shell after ssh'ing to your RPI. that uTracer.js is not available on the website, but I can prepare the version like that as well. I cap also try to compile for RPI but I actually need RPI to do it, and I did not want to explain all those details how to use it directly with Nodejs instigator.
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On 26 Feb 2022, at 20:09, jgx plato <jgx...@gmail.com> wrote:
Indeed I am working for the utracer with a Windows machine, and as you say, when I try to use the debug tab, there is no message new web socket connection.For this reasson I have try run the app in a MacBook Pro M1 and it had been imposible. I have repeated the procedure as I did in the windows machine, but without success!I have uses the utracerJS-macos-arm64, and I have modified the utracerJS.txt (see attached image)Any idea to run the app in the Mac?
<image_50384641.JPG>
El El sáb, 26 feb 2022 a las 19:24, Ihor <iste...@gmail.com> escribió:
Nice screenshots!- the possibility to make measurements without Heater ON before that, is a decided choice. It is mainly for those people (like me and many others here) who have external power supplies for heating the tubes, and so we do not have to activate the internal heater in any case (as in the original windows software). So, it is a responsibility of the user (who uses an internal heater) to turn it on before the measurements (and there is also a message about that on the top each time).- the ping is done using a bit specific protocol, so I wonder if you are using windows ? if you have any firewalls or antivirus software or so, which might block the access. Could you check if you see something similar to my screenshot in the terminal window when you start uTracerJS and then go to the Debug tab in the browser. It should say that a new client is trying to connect. Having that not working (the Debug tab) is not a problem at all, you basically never have to monitor it if things are working well :)Cheers,Ihor
<websocket.png>On Saturday, 26 February 2022 at 19:03:37 UTC+1 jgx...@gmail.com wrote:Excellent app! I am making tests with utracer 3+, FTDI USB wire, and all seems work fine using quick test and measuring curves, but in the debug section all the time is connecting, there is no possibility of make a ping in my case. I have tried several times with no positive results.Other thing that I don’t know if it is mistake or not is that, even if you doesn’t connect the heater in the app, is possible make a measure using the quick test and curve measure.
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Ooooh Ihor when you talk about SSH i’m getting back nightmares when i think about all that wasted time trying to cross-compile that software to ARM64.
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In recent measurements of resistors looking for the explanation for a difference in screen current I have been running traces up to 300V through 470 ohm 1/2W resistors, 30 measurements at ~1/sec, topping out at over 600mA... 170W! After such a trace, the resistors are just warm to the touch. In the above plot showing the 1% drift after 30 minutes, 4k7 resistors were measured at 250V, resulting in 13W instantaneous dissipation. There is no significant change in resistance due to heating, I'd bet, and the drift is all down to temperature stabilization of the uTracer hardware.
I am talking about the results in the quick test, the variance is small, but I never get the same reading (I haven’t calculated the mean error, sure that is low). I was proposing a more robust way to estimate the results shown in the quick test ( the way that I used to annotate the values of my tubes, maybe it is due to my engineer formation :) ).
Just open a command prompt at the location of your .exe file, and manually key in the name of your .exe file to run it within that window.
1.Navigate to the folder where your executable resides2.Shift-Right click and select "Command Window from here"3.type in the name of the executable and hit enter4.The process should run, but the window should stay open
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Hi All,Recently I thought that it would probably be a good idea to make my webinterface that works in combination with ESP32 module (see the thread on this forum about "uTracer goes wireless" and also that project page http://boffin.nl/wp/utracer-and-esp32/ ) also available to other users, who do not want to deal with any hardware extensions (even though they are super easy to do). I had a bit of time and I rewrote the whole C++ backend part (which was run on ESP32) in javascript (using NodeJs) and now the same frontend that some of you already used in your web browsers can be run just locally on your desktop/laptop.As a result, you can now try this new software, uTracerJS, without any modifications to your setup, in exactly the same way as you already do with Ronald's software or uTmax/uTracer, which means that uTracer has to be connected with a computer using serial connection, either via COM-to-COM or USB-t0-COM cable. But that's exactly waht you have already, if you do not own ESP32 yet:)The project page is here:You can see more details about the installation and usage there. For now, I compiled it for the most used platforms (win, mac and linux). In my tests it runs successfully on Intel and M1 Macs, as well as, windows 10 machine. Because everything is javascript/nodejs based, I can easily create executables for any platform (alpine, linux, linuxstatic, win, macos, (freebsd)) and any architecture (x64, arm64, (armv6, armv7)), which means that uTracerJS can in principle run or all possible devices including Raspberry Pi and so on.The software is fully functional and will be slightly updated in the near future. The front-end part is already extensively tested by many users who have ESP32 module (the front-end part is exactly the same). I would appreciate any feedback and reporting of bug and inconsistencies. A few of them (for example implementation of a more advanced QuickTest which is present in ESP32 version, monitoring Debug window during acquisition, etc.) will be fixed in the near future, I just have to find more free time to do that ).One note: with a modern approach of "signing" all the executables and binaries, I am not sure how it will work for other users. Please let me know if you experienced any problems. It might be not a problem at all and this note can be ignored. I have not experienced anything like that, but at the same time all my win and mac machines are probably already in some "developer modes" meaning that I might activated some checkboxes and options on the way, during the development, and do not remember anymore what I did.Cheers,Ihor
or
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I suspect I'll be using your interface regularly :^) I'll watch out for any errors that come up.
From the 400V 3+ conversion notes, located here: https://www.dos4ever.com/uTracerNotebook/Notebook.html#Current2
5. Adjusting the value of the current sense resistors
The anode and cathode currents are measured by the voltage drop over the current sense resistors R20 & R45. The standard value of the current sense resistors has been chosen such that at the maximum nominal current of 200 mA, the voltage drop over the resistor (18*0.2 = 3.6V) is well within the range of the AD converter and still allows for some “overdrive.” By adding per current sense resistor two 18 ohm resistors in parallel, the nominal current range is tripled to 600 mA. Fig. 15.3 shows how these resistors are added to the bottom side of the PCB.
In the Windows GUI, a 6 ohm input for Rsense gives the following compliance limit and steps:
600, 525, 450, 375, 300, 225, 150, 75
And for a 5 ohm Rsense:
720, 630, 540, 450, 360, 270, 180, 90
Both reflect a maximum of 3600/Rsense, which is then divided into 8 parts.
Hi Martin,