CP2108 USB to 4-way uart serial port module

The usb to 4-way uart module made using sillabs' cp2108 chip leads to all pins. It can be converted into four full-function rs232 using the conversion chip. It can also debug multiple uart devices at the same time. The
usb port uses the miniusb interface. Plug in A well-made physical picture that is more stable than micro usb

(there are two LED pads. The one soldered in the picture is on when there is operation, and the one close to the chip is off when there is operation. Choose one to solder, or use different colors for the two)
![IMG_20200318_162056.jpg] After connecting to the computer and installing the driver, open the device manager. You can see the four ports as shown in the figure, which is a success
! [Untitled.png] The definition of the two rows of power pins in the upper right corner is due to insufficient space. It’s marked backwards. If you don’t understand it, open the pcb file and you’ll understand.

Attachment: [cp2108 official data sheet](https://www.silabs.com/documents/public/data-sheets/cp2108-datasheet.pdf)