TC66C-a powerful Type-C USB tester

The point is your TC66(C) device has useless extra two digits for voltage, current, and power, so why display it if those last two digits are basically noise and contain absolutely no useful information?

you can read their introduction or watch vedio, when you want to use 6-digit accuracy, it is charged by independent power supply and you can see they are not useless, 6-digit accuracy
means the fifth digit is credible,4-digit accuracy means the third digit is credible, that makes the difference.
if you want to know more,please contact RD offcial ,I’m not the designer :nerd_face:

Thank you for your article, it helps a lot. If other friends have interest in TC66C, you can contact me and I am willing to communicate with you

When will the PC software be released?

it should be this week, don’t worry, when you get the products, you will see the PC software

Got my meter today. Software not yet available though.

you get the products ? I will put the PC software fast …

I just got my unit!

Regarding CC Pull Down, there is a PD switch as well as a Settings Interface menu item that can both be used to activate the pull down. If one says to pull it down and the other is set to not pull it down, what happens?

And I still don’t see the PC software anywhere.

Thanks.

Hi friend
in fact, one is software control CC pull down, one is firmware to switch PD , if you want to use PD trigger, you must switch them on … if one was closed, trigger can’t work
for PC software, we just finished yet, but we did not let our foreign friend to help me test first , we have tested, I would like let others test again
if you want to , you can help me test … this is file https://drive.google.com/open?id=1pX_YLL6HNbpq8rhjxmB_QnTtyyCZedur

for PC software, we just finished yet, but we did not let our foreign friend to help me test first , we have tested, I would like let others test again
if you want to , you can help me test … this is file https://drive.google.com/open?id=1pX_YLL6HNbpq8rhjxmB_QnTtyyCZedur

for PC software, we just finished yet, but we did not let our foreign friend to help me test first , we have tested, I would like let others test again
if you want to , you can help me test … this is file https://drive.google.com/open?id=1pX_YLL6HNbpq8rhjxmB_QnTtyyCZedur

Thanks for the software; I will provide feedback later after I have tried it out.

On my Lenovo laptop with a USB-C PD charger, the Quick Charge Detection screen shows the correct 20V and 2A operation but QC2.0 as the Quick Charge protocol instead of USB-C PD. Why?

In fact, running Protocol Detection against the charger correctly shows it is USB-C PD only.

The PC software wants me to update the firmware but won’t update successfully

Dialog box

for this problem, in our user manual, there is note: 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)

now don’t update , we did not add updated things , now please uninstall the software and install it again to check the function and operation

Hi friend
don’t update it now, because we did not add the update things .
now please uninstall the software and install it again to check normal function and operation

I uninstalled/reinstalled and everything seems to be working though it did pop up dialog boxes to install new software and new firmware.

Are you planning to implement something like the K2 long press function so I can operate the TC66C from the PC without touching the device?

It might be better if you leave that part of the screen blank or if you don’t recognize the quick charge protocol instead of an incorrect one.

Which charger do you have?

If I remember well, some USB-PD devices actually use QC 2.0/QC 2.0 Type B charging to achieve higher power levels using Qualcomm ICs.

It may be that your charger actually uses USB-PD over QC 2.0/3.0 Type B, which can reach 20V at 5A.

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)