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LCR-T4 electronics components tester ATMega328 - Test and Review

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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #361 16733916
    E8600
    Level 41  
    CMS wrote:
    I do not want to paste anything.
    In that case, I suggest such a socket. LCR-T4 electronics components tester ATMega328 - Test and Review
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  • #362 16733963
    gumisie
    Level 43  
    E8600 wrote:
    In that case, I suggest such a socket.
    Great, but there are two problems with this socket. 1. How to mount such a socket in a rectangular hole ?. 2. It does not meet the requirements of col. CMS . "connector for an external power supply, with the option of disconnecting battery power after connecting?". PS To avoid pasting, you can use the Col. Removed advice.
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  • #363 16733987
    Anonymous
    Level 1  
  • #364 16734081
    gumisie
    Level 43  
    eurotips wrote:
    This hole is at the height of the LED backlight.
    And this part of the housing can not be rotated 180 degrees horizontally ?. :|
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  • #365 16734468
    CMS
    VIP Meritorious for electroda.pl
    The backlight legs do not protrude beyond the outline of the PCB, at least for me.
    gumisie wrote:
    And this part of the housing can not be rotated 180 degrees horizontally ?. :|
    Can be.
  • #366 16737673
    lukashb
    Level 39  
    Hello, I also ordered this tester, I already have it. It seems to be all right, although what I care most about is detected as ... an ordinary resistor :( it's about inductance. No matter what type, whether axial chokes, or coils wound by me or a clutch, everything is as a resistor. Once it only detected as a coil. What is wrong?
  • #367 16737683
    E8600
    Level 41  
    lukashb wrote:
    It seems to be all right, although what I care most about is detected as ... an ordinary resistor is about inductance
    Did you do the calibration?
  • #368 16737685
    viwaldi1
    Level 24  
    I use T4 to measure inductance and smiglessly. Sometimes it sees transistors (npn / pnp) as 2 diodes but it's enough to change the system into other measuring holes and it's ok. Maybe try something like that.
  • #369 16737687
    Adamcyn
    Level 38  
    lukashb wrote:
    No matter what type, whether axial chokes, or coils wound by me or a clutch, everything is as a resistor.
    Probably out of range - inductance 0.01mH-20H. See # 297.
  • #370 16737741
    gumisie
    Level 43  
    lukashb wrote:
    No matter what type, whether axial chokes, or coils wound by me or a clutch, everything is as a resistor. Once it only detected as a coil. What is wrong?
    Surely the coil you want to measure has a different value, like:
    Adamcyn wrote:
    Probably out of range - inductance 0.01mH-20H.
    . 0.01mH = 10?H and the value lower than this will not be measured, this also applies to values higher than those that are provided for this tester. Greetings.
  • #371 16737814
    alien90fr
    Level 26  
    Today I got a whole and healthy tester, I just need to buy a battery. It is a pity that the sticker was not because I would stick.
  • #372 16737822
    vodiczka
    Level 43  
    alien90fr wrote:
    Today I got a whole and healthy tester, I just need to buy a battery
    Where's planning, buddy? :) I bought it the next day after ordering, it lay and waited for its tester.
  • #373 16737925
    gumisie
    Level 43  
    vodiczka wrote:
    Where's planning, buddy? :) I bought it the next day after ordering, it lay and waited for its tester.
    Oh, there, probably a colleague did not expect such a quick delivery. I ordered (23.08) probably on Thursday and on Tuesday the package arrived. (in the meantime "wekend")
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  • #374 16738234
    lukashb
    Level 39  
    E8600 wrote:
    lukashb wrote:
    It seems to be all right, although what I care most about is detected as ... an ordinary resistor is about inductance
    Did you do the calibration?
    That's how I made the calibration, and in total nothing has changed, and yes, I have switched to other openings. I will try other coils, although I am convinced that they should be measured because they were in the range. But I will see what and how. Of course, the battery is new.
  • #375 16738275
    rafcio_21
    Level 29  
    Measuring the relay coil and measuring the buzzer LCR-T4 electronics components tester ATMega328 - Test and Review LCR-T4 electronics components tester ATMega328 - Test and Review
  • #376 16738333
    E8600
    Level 41  
    rafcio_21 wrote:
    Measuring the relay coil and measuring the buzzer
    It is a pity that you do not have a second tester under the hand with the original soft for comparison. Because maybe soft is the culprit. It would be useful for such a test in this section. Did someone pull the original soft from the processor so that you could come back as if what? I have poor detection of small inductances. Tested a colleague how is it with elements from outside the declared ranges on this changed software?
  • #377 16738346
    Adamcyn
    Level 38  
    At last I understood what is moving the coil along the ferrite rod. :) LCR-T4 electronics components tester ATMega328 - Test and Review LCR-T4 electronics components tester ATMega328 - Test and Review
  • #378 16738398
    gumisie
    Level 43  
    Adamcyn wrote:
    At last I understood what is moving the coil along the ferrite rod. :)
    Probably a change in the inductance value and the second result on resistance, or the wave resistance of this circuit.
  • #379 16738422
    rafcio_21
    Level 29  
    E8600 wrote:
    rafcio_21 wrote:
    Measuring the relay coil and measuring the buzzer
    It is a pity that you do not have a second tester under the hand with the original soft for comparison. Because maybe soft is the culprit. It would be useful for such a test in this section. Did someone pull the original soft from the processor so that you could come back as if what? I have poor detection of small inductances. Tested a colleague how is it with elements from outside the declared ranges on this changed software?
    In some time I will have a friend tester with original soft (in order to modify it), I can compare some results but I've already tested my before and after uploading and I would definitely not return to the original. Now the possibilities are much bigger, I am waiting for the inverters from China and I will still be able to measure zener diodes and LMxxx stabilizers.
  • #380 16738446
    E8600
    Level 41  
    rafcio_21 wrote:
    In some time I will have a friend tester with original soft (in order to modify it), I can compare some results but I've already tested my before and after uploading and I would definitely not return to the original. Now the possibilities are much bigger, I am waiting for the inverters from China and I will still be able to measure zener diodes and LMxxx stabilizers.
    How would you like me mainly for coils and transistors. Understand that this soft allows the measurement of stabilizers (would be useful)? I read that I was also tested by a soft colleague with 16 MHz quartz. Man hope that the final version of the software will come out with all language patches and, of course, the electrode logo. :)
  • #381 16738486
    Adamcyn
    Level 38  
    gumisie wrote:
    Probably a change in the inductance value and the second result on resistance, or the wave resistance of this circuit.
    Probably. It is a pity that we Gulson he had not sent those testers before. For example, for the First Communion. :D
  • #382 16738526
    vodiczka
    Level 43  
    Adamcyn wrote:
    It is a pity that Gulson did not send us these testers a bit earlier. For example, for the First Communion
    Indeed, a man with such a tester on the electronics exchange some 30-40 years ago would be Lord :)
  • #383 16738543
    pawelr98
    Level 39  
    The coil I made from what I pulled from scrap metal. Powder core with ATX power supply choke + transformer wire from UPS. 90?H and 0.2?. LCR-T4 electronics components tester ATMega328 - Test and Review As you can see the finger can replace the electrolytic capacitor. LCR-T4 electronics components tester ATMega328 - Test and Review Due to the very weak contact I had to measure SMD mosfets in this way. He could detect a mosfet with a depleted channel and even Jfet. LCR-T4 electronics components tester ATMega328 - Test and Review It detects correctly when correctly connected. LCR-T4 electronics components tester ATMega328 - Test and Review Recently I bought mosfet transistors with P channel which I will check too.
  • #384 16738585
    alien90fr
    Level 26  
    vodiczka wrote:
    alien90fr wrote:
    Today I got a whole and healthy tester, I just need to buy a battery
    Where's planning, buddy? :) I bought it the next day after ordering, it lay and waited for its tester.
    Such a situation :D I'm going for the batteries tomorrow!
  • #385 16738640
    rafcio_21
    Level 29  
    E8600 wrote:
    rafcio_21 wrote:
    In some time I will have a friend tester with original soft (in order to modify it), I can compare some results but I've already tested my before and after uploading and I would definitely not return to the original. Now the possibilities are much bigger, I am waiting for the inverters from China and I will still be able to measure zener diodes and LMxxx stabilizers.
    How would you like me mainly for coils and transistors. Understand that this soft allows the measurement of stabilizers (would be useful)? I read that I was also tested by a soft colleague with 16 MHz quartz. Man hope that the final version of the software will come out with all language patches and, of course, the electrode logo. :)
    Quartz 16MHZ is testing a colleague from work, the Polish language also has on my tester this soft would not work, I suspect that it was quartz wine 16 MHZ because I had to disassemble and I had no other change, and now I have English menu and quartz 8 MHZ, measurement of zests and LMxxxx is possible on this software, requires a 40V converter and some modifications. As for the final version, I use the knowledge of electrode colleagues who have much more knowledge from me :) .
  • #386 16739118
    walbe
    Level 19  
    For me, such a thing appeared, the damaged capacitor comes from a defective, damaged Samsung monitor, and seen as a diode. Such a curiosity. LCR-T4 electronics components tester ATMega328 - Test and Review
  • #387 16739158
    lukashb
    Level 39  
    I will say yes, a generally good tester, but of course you know the good parts. I would honestly prefer 3 different meters, but one that will allow me to choose a choke for the radio construction, this tiny, axial, rather than have one meter that measures everything and nothing. Anyway, I'm satisfied with the measurement of the transistors, just the same resistors.
  • #388 16739222
    gumisie
    Level 43  
    lukashb wrote:
    I will say yes, a generally good tester, but of course you know the good parts.
    I fully agree with this statement (functional). If it shows us some nonsense, we can still say that there is something wrong with this item being tested, it just is not working. Greetings. I recommend the topic: https://www.elektroda.pl/rtvforum/topic3382383.html#16732819
  • #389 16739275
    Adamcyn
    Level 38  
    lukashb wrote:
    but the ones that allow me to match the choke to the radio construction, this tiny, axial,
    If you mean the nH government, there is nothing at a reasonable price. It's easier to count than to measure.
    lukashb wrote:
    I will say yes, the tester is generally good
    By. I do not have a better one considering the relation between price and possibility.
  • #390 16739307
    gumisie
    Level 43  
    Adamcyn wrote:
    If you mean the nH government, there is nothing at a reasonable price.
    You can do it on your own, the cost is the price: display + microprocessor, I made my own on PIC16F628 + 16x2 LCD. Greetings.

Topic summary

The LCR-T4 electronics components tester based on the ATMega328 microcontroller is a versatile, low-power device powered by a 9V battery, drawing 12-15mA during measurement and 20nA in sleep mode. It automatically detects component types and lead configurations, measuring parameters such as resistance, capacitance (up to 47,000µF), inductance, diode voltage drop, transistor type and pinout, and ESR. Calibration involves shorting the test leads and using a known capacitor above 100nF. The tester supports testing of discrete components including resistors, capacitors, diodes, bipolar and field-effect transistors, and thyristors, though it struggles with integrated LM series voltage regulators due to their complex internal structures. Accuracy is generally sufficient for amateur and workshop use, with some noted measurement deviations, especially in low resistance and inductance readings. The device features a white LCD display, with some users comparing it to yellow LCD variants and color display models with built-in batteries. The ZIF socket is a known weak point, prone to contact issues and limited to thin leads; users recommend alternative housings and socket modifications for durability. The ribbon cable connecting the display is fragile and non-replaceable separately, requiring careful handling. The tester is available as a DIY kit with open-source firmware and as ready-made units, purchasable from Chinese suppliers and local Polish sellers, with prices around $30 or 25-40 PLN depending on housing and shipping. Shipping damage to displays has been reported due to insufficient packaging, prompting suggestions for improved protection. Firmware variations exist, affecting features like contrast adjustment and component recognition. The device is highly regarded for its ease of use, broad functionality, and value for money, making it a popular gadget among electronics hobbyists. Community discussions include suggestions for further development, housing designs, and integration of the elektroda.pl logo for uniqueness.
Summary generated by the language model.
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