TC66C-a powerful Type-C USB tester

our protocol is identified by D+ and D- data, This quick charge agreement recognition model is not complete and for reference only, we will add other protocol in the future)

Lenovo 00HM633 that was bundled with the Lenovo Yoga 720 laptop

Here is the output of the protocol detect function (I have been unsuccessful at embedding the image in my post)

Screen capture

Seems like it’s actually working though, as it is showing USB-PD being active.

detection is right , it is detection by CC wire, but fast charge identity is by D+and D- value

Right.

I was thrown off by the Lenovo specification saying PD, the TC66C detecting that it was a PD charger but then saying QC2.0 when actually charging.

detection is right , it is detection by CC wire, but fast charge identity is by D+and D- value.
D+ and D- value are just reference, not very accuracy. The product will automatically identify a device with a supported fast charging mode. At this time the device supports the QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG.(Note: This quick charge agreement recognition model is not complete and for reference only, we will add other protocol in the future)

RT tech,

You have got me started on reading up on the use of D+ and D- values for various protocols, many of which are proprietary. One article with a very good explanation of QC 2.0 and QC 3.0 is Article

Do you expect to be able to implement detection of a protocol running on the CC wire in the future?

Today my TC66C arrived. Damn is it small if you see it side by side to a UM 25C. I like it!
But I hope they make a change in the Sotware. The UM 25C turns on the second you put in a device (so i can let it connected to the charger and see the current when i connect a device).
But not so the TC66. I have to manualy turn it on to see the values.

thank you for your support
UM25C is bigger than TC66C, for the welcome interface, I will consider

Thanks RD tech! At the moment i use the TC66C mainly to check the current draw of my QI wireless charger. It helps to find the best position on the charger.
But like i said it would help if it would automaticly turn on.

And can we logg the data when using the PC software?

thank you ,I am so happy that you like it
like i said it would help if it would automaticly turn on.—— I don’t understand
yes, you use the PC software to log the data

If i put the UM 25C in the charger and do not use it for a few hours it will turn off. When i then connect a phone, tablet. . . it turns on automaticly and i can see voltage current. . .
If i put the TC66c in the charger and do not use is for a few hours it will turn off. When i then connect a phone,Tablet. . . it will not turn on automaticly. I have to turn it on by hand to see the voltage, current. . .

HI friend
please check the screen off time, we have screen off time function, you set 0 minutes, it will be lighting
For auto screen off time setting press ‘PREV’ to repeatedly step though the 10 options from 0 to 9 minutes. Default time is 1 minutes.

Sorry thats not what i mean. If i have time tomorrow i will make a video to show the difference.
But it is only a convenience thing not a real problem.

very good, friend
I am waiting

have you solved your questions?

I do not know what happend. I was putting everything together to take the Video and the TC66 turned on automaticly like the UM25.
I used the same cables and devices. And i tried it a few times (so it is not a coincidence).
It is a bit strange that it did not work this way the first few times but is working now.

so it works normel now? you can ask RD tech if you still doubt there is any problem

I noticed the same thing.

Got mine yesterday, and when inserting it into a ZMI USB PD charger, it didn't turn on.
I thought it could trigger PD, so was a little flabbergasted. I connected my Passmark tester and it turned on.
But later, when I played around a little more, it turns on a few seconds after being inserted into the charger.

dodge_911, are you close to releasing your review on this USB tester?