Data power supply separation module based on ch224k decoy voltage

Remember! The risk factor of this project is extremely high! Since the deception is 12V, there is a high probability of damaging the host computer when connecting to the wrong interface!
The personnel introduced that
the project was jointly drawn by Liu Shao & Bai Shatang, but neither of us accepts any responsibility for any form of loss caused by operation or other errors (both of them have verified that there is no abnormality).
Principle introduction
The principle is to separate USB power supply and data, separate the power supply and data of the C port of the digital screen to use a common mobile phone adapter or PD adapter for power supply, and at the same time lead out the data pins so that it does not lose the original digital screen communication function (GM156HD HeZhen I cried to death, it has C port but not full function) Therefore, I developed this conversion board. First, the original cable set is too expensive, and secondly, it is also very verbose (it is a triple cable, huge in size, but mine seems to be more verbose. , but it doesn’t matter, keep reading)
This open source will provide two versions. One is full C port, one is a C port PD input, one C port is connected to the host computer, and one A port output is connected to the screen. If necessary, it will be added later. Protection function, dual power switching and other additional capabilities, as well as a version with a built-in output cable.
Here is the actual usage picture . In addition to
this chat , there is
one more thing. GM156HD also needs a miniHDMI cable
, so... careful friends I discovered that the original cable set only needs to add one more adapter. There are three cables in total and one adapter. Now we need four cables, one adapter, and this board. Is there any practical significance? The answer is definitely yes. We are currently studying all the cables. It has C port function. This is still a transitional version. At that time, we will only need two CtoC and one miniHDMI. We may also develop a wired version with a HUB chip, which will be similar to the form of a docking station. , you can bring more equipment, such as plugging in a mouse receiver, etc. Although it seems troublesome, it is really troublesome
... You asked me if this version is useful, the answer is definitely useful,
because I said dormitory 23 Power off at one point, which will affect drawing. Using this, you can use a power bank that supports 12V output to power
what? You ask me why I don’t use a decoy wire... emmmm, this is indeed the case in the 0th generation, but... we like to toss, hhh,
so it’s really annoying. The old Mac does not have a full-featured C port.
It is actually true that GM156HD does not support a full-featured C port. It will be more convenient. We are using short-term cables and it is much more comfortable to use in the dormitory than the original cable set.
So, its existence is reasonable. In addition, 1148097334 is an open source BUG feedback group. You can also chat.