USB power meter/tester thread - YZXStudio, Power-Z and more. Formerly "YZXstudio devices discussion"

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d_t_a
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The new ZY1280 appears to be the upgrade from the ZY1276 / ZY1276P(Plus?). The ZY1278 appears to just be the USB-C (only) version of the ZY1276.

Check the official YZXStudio store in TaoBao here:
https://item.taobao.com/item.htm?id=549902607690

using Google Translate to translate the marketing blurb for the new meters:

Quote:
Leader in high-end USB meter! Truly instrument-level accuracy!

!! Safety warning !! This type of tester has multiple input and output ports. All interfaces are connected in parallel. Only one input and one output are allowed to be connected at the same time. Some model testers support high-voltage fast charging. When the high voltage is triggered, there will be high voltage on the input and output ports. Do not connect any equipment with insufficient voltage resistance. Please confirm that the voltage is correct and then access the equipment. This will result in problems including but not limited to burning mobile phones, burning equipment, burning adapters, etc. This shop does not bear any responsibility!

Big-screen purple-gold ZY1280 starts selling! A new generation of high-end flagship USB meter!

Contains all the features of 1276. The new features are as follows:
10 times the CPU processing power of ZY1276!
1.8-inch ultra-narrow frame large color screen, the screen is bigger but the size is not much!
Screen displays more information and more curves graphs!
Independent MicroUSB power supply interface, 0V starting test!
USB upgrade: USB connected computer drawing curve PD capture, DIY full screen boot screen!
New current voltage power maximum and minimum value display!
Added AUTO protocol to detect QC4 and PPS display!
Added QC4-PPS protocol 0.02V step trigger!
Add QC to PD function!

The new large blue ZY1276Plus enhanced tester starts selling!
0.01mA current resolution! Chinese and English bilingual interface!
Type-C Power Delivery trigger detection, packet capture monitoring directly included without additional cost!
It is not necessary to directly measure the E-Marker line with PD power!
QC2.0 QC3.0 QC4 FCP SCP AFC PD2.0 PD3.0 PPS VOOC DASH
The full protocol fast charge triggers detection scams!
Serious enthusiasts recommended USB meter!

Quote:
ZY1280: USB2.0 interface, including all the features of the 1276, the new addition of USB upgrades, even the computer host computer, large screen, features and more. ZY1276: USB2.0 interface, with almost full-featured fast charge trigger detection function, higher current resolution, can measure Type-C PD adapter.
white7561
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Hey. Oh so the new model could convert QC type c to PD? nice . Anyway on zy1276 . I have some questions. So I’m trying to use my load dummy. This one needs usb power to run. So. Could I just connect it to the meter while I use the output too for draining? Will the meter reads both outputs usage? So basically. Type c input to ZY1276. Then on output I use both usb a and type c. Say the type a uses 1A and the type c uses 1A. Will the meter reads it correctly? So it shows 2A? Thanks…

white7561
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also… eh, when upgrading . the instruction says to check the factory reset on program while flashing. does it resets calibration? and if didnt check the reset on while flashing, does it keep the calibration?? i cant calibrate it since i dont have accurate meters / source etc

d_t_a
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white7561 wrote:
Hey. Oh so the new model could convert QC type c to PD? nice . Anyway on zy1276 . I have some questions. So I’m trying to use my load dummy. This one needs usb power to run. So. Could I just connect it to the meter while I use the output too for draining? Will the meter reads both outputs usage? So basically. Type c input to ZY1276. Then on output I use both usb a and type c. Say the type a uses 1A and the type c uses 1A. Will the meter reads it correctly? So it shows 2A? Thanks…

I’m not sure if using both outputs at the same type USB-A and USB-type-C will work properly.. maybe you could tell us what happen when you did it (use a smaller current when testing, if you can configure it)

white7561
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d_t_a wrote:
white7561 wrote:
Hey. Oh so the new model could convert QC type c to PD? nice . Anyway on zy1276 . I have some questions. So I’m trying to use my load dummy. This one needs usb power to run. So. Could I just connect it to the meter while I use the output too for draining? Will the meter reads both outputs usage? So basically. Type c input to ZY1276. Then on output I use both usb a and type c. Say the type a uses 1A and the type c uses 1A. Will the meter reads it correctly? So it shows 2A? Thanks…

I’m not sure if using both outputs at the same type USB-A and USB-type-C will work properly.. maybe you could tell us what happen when you did it (use a smaller current when testing, if you can configure it)

ill try later on when it arrives. anyway when upgrading . the instruction says check the “reset after flashing” on the program. does it resets calibration? and if i didnt check the “reset after flashing”, does it keep the calibration?? i cant calibrate it since i dont have accurate meters / source etc

thanks

d_t_a
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In my case, the voltage readings of my ZY1276 didn’t seem to change (or if it did, it was too small that I hadn’t noticed it) before and after I upgraded its firmware.

white7561
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d_t_a wrote:
In my case, the voltage readings of my ZY1276 didn’t seem to change (or if it did, it was too small that I hadn’t noticed it) before and after I upgraded its firmware.

Please read my PMs thanks Smile

white7561
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Guys I have great news. So my ZY1276 just came in the mail. After trying it. I was so confused of the firmware version. Its already on 3.36D . And it appears that I have the new ZY1276P version (I know cuz when it shows the model number when you holding button bfore going to configuration mode) okay. So basically. I should be able to check emarker without PD adapter. No documentation yet. So idk. I’m waiting for my type c cables. Also. I’ve found a closed beta firmware . 3.36E (newer than stable) it removed some Chinese text. And vooc check . For beta testing QC to PD 2!! (He said the memory isn’t enough for new features so he needs to remove some to get some) . Haven’t tried it yet tho. He said something too about not using it with emarked type c cable. Anyway here’s the fw if you wanna test it. ZY1276 only!! I’ve flashed it successfully.

Fw : https://mega.nz/#!WFkRUSCA!RDdOOFOaqEt8DM_kchLiokDeEIp1mf2m3h95Pq5siLg

xnode
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white7561 wrote:
Guys I have great news. So my ZY1276 just came in the mail. After trying it. I was so confused of the firmware version. Its already on 3.36D . And it appears that I have the new ZY1276P version (I know cuz when it shows the model number when you holding button bfore going to configuration mode) okay. So basically. I should be able to check emarker without PD adapter. No documentation yet. So idk. I’m waiting for my type c cables. Also. I’ve found a closed beta firmware . 3.36E (newer than stable) it removed some Chinese text. And vooc check . For beta testing QC to PD 2!! (He said the memory isn’t enough for new features so he needs to remove some to get some) . Haven’t tried it yet tho. He said something too about not using it with emarked type c cable. Anyway here’s the fw if you wanna test it. ZY1276 only!! I’ve flashed it successfully.

Fw : https://drive.google.com/file/d/1DeRpdQDzesJDnmy9aJg1l—wuwcd6mvr/view?...


File doesn’t exist. Please upload it to mega.nz or similar.
white7561
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Updated!!

white7561
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d_t_a wrote:
In my case, the voltage readings of my ZY1276 didn’t seem to change (or if it did, it was too small that I hadn’t noticed it) before and after I upgraded its firmware.

please read my pm thank you Smile

angerdan
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Any news about the ZY1280 ?

angerdan
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Anyone able to update the ZY1273?
I even can’t change the voltage from 4.0 to 1.8V.

d_t_a
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angerdan wrote:
Anyone able to update the ZY1273? I even can’t change the voltage from 4.0 to 1.8V.

What do you mean sir by changing voltage from 4.0 to 1.8v?

Do you mean calibrating the voltage of the ZY1273 from the Settings menu?

If the ZY1273 uses the same firmware flashing method as the ZY1276, then it needs the STM32 programmer device and proper cable/pogo pins to update.

angerdan
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You’re right, i meant the voltage setting in the STM32 programmer software.
I do have the pogo pins, but can’t connect the ZY1273 to flash the firmware 3.1 on it.

magicmeter
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angerdan wrote:
Any news about the ZY1280 ?

Check it out here https://youtu.be/g3foqpBZyjM Wink
xnode
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New model out there?

RD AT34 USB 3.0 Color Display Tester dectector And LD35

angerdan
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xnode wrote:
RD AT34 USB 3.0 Color Display Tester dectector And LD35

Seems like a UM24 with smaller display.
https://aliexpress.com/store/product/RD-AT34-USB-3-0-color-LCD-Voltmeter...

Here’s a list with current RD USB meters:
https://rdtech.de.aliexpress.com/store/923042/search?SearchText=usb&orig...

xnode
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angerdan wrote:
xnode wrote:
RD AT34 USB 3.0 Color Display Tester dectector And LD35

Seems like a UM24 with smaller display.
https://aliexpress.com/store/product/RD-AT34-USB-3-0-color-LCD-Voltmeter...

Here’s a list with current RD USB meters:
https://rdtech.de.aliexpress.com/store/923042/search?SearchText=usb&orig...
!{width:100%}https://yt3.ggpht.com/iv4PNI4sjDxYQXmZ9uS4kjIMVh_REeiQTB3M-kLyfe5M9-YHV1...!


If that’s the one it’s quite cheap, probably much lower quality than YZXstudio?
angerdan
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AFAIK all RD products are good quality. Maybe not better than YZXStudio but probably with slightly better price/quality ratio.

dodge_911
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Not lower quality, but just not as many functions.

The quick charge mode identifier is a little less 'smart', and some other functions just aren't there such as PD trigger etc...

:: youtube ::
http://bit.ly/dodgereviewsyt
    :: powerbank capacity tests ::
http://bit.ly/drpbcc
:: μusb cable tests ::
http://bit.ly/drmicrousb
:: lightning cable tests ::
http://bit.ly/drlightning
 :: type-C cable tests ::
http://bit.ly/drtypec

 

staticx57
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Anyone know anything about these WEB- series of testers?



RD tech
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YZX usb meter is very good, but the price is too higher …
but RD (ruideng meter ) is cheaper and have more function.
for ““UM24C”:https://www.aliexpress.com/item/RD-UM24-UM24C-for-APP-USB-2-0-LCD-Displa... and ““UM25C”:https://www.aliexpress.com/item/RD-UM25-UM25C-for-APP-USB-2-0-Type-C-LCD... , it can support PC software and android APP, APP can support 21 kinds languages
and
APP and PC software can export data by excel. it is easy to research the data…

but YZX meter did not have ,
For UM34C, it support USB 3.0 and Quick charge recognition mode:QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG, support support OPPO phone VOOC, OnePlus DASH
Though UM34C and UM25C have Type-c port , but there is not trigger, only support type-c charge, not recognition

although for data or some function, it is not better than YZX meter, but for the price , it is already best …
for USB load, there are many choice , LD25/LD35
If someone need more cheaper meter, but colorful display, there is also choice
AT34

Waiting for everyone to discuss …

Wrongway
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Probably a very basic question, but it has me puzzled. Most of the USB power meters I have or have seen have Groups. What are their purpose.

maukka
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You don’t have to reset the mAh/Wh measurements when doing several tests in a row. Just switch the group and retain the old data.

Wrongway
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That makes sense I suppose. It would allow you to continue a test later or go straight on to a fresh test and record previous data at a later time. I thought it might have been something more significant I was missing.

Wrongway
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I have just bought a ZY1276 from Amazon which appears to have recent firmware. I tried AutoDetect on a new Samsung Galaxy S9 charger expecting the Samsung-AFC 9V protocol go green, but it indicates as red which is not available. It is a genuine Samsung charger and has 9V indicated on it. Has anyone else come across this.

staticx57
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Wrongway wrote:
I have just bought a ZY1276 from Amazon which appears to have recent firmware. I tried AutoDetect on a new Samsung Galaxy S9 charger expecting the Samsung-AFC 9V protocol go green, but it indicates as red which is not available. It is a genuine Samsung charger and has 9V indicated on it. Has anyone else come across this.

Are you using a high quality cable? Is your phone mostly charged?

Wrongway
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I am just plugging the ZY1276 direct into the charger, no cable of phone involved. As I understand it the ZY1276 should list the chargers capabilities with Auto Detect.

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