还在发愁笔记本上的USB插头不足吗?现在有VGA转USB接口卖了。
当然,只是供电而已
VGA DDC2 connector pinout:
Pin |
Name |
Dir |
Description |
1 |
RED |
|
Red Video (75 ohm, 0.7 V p-p) |
2 |
GREEN |
|
Green Video (75 ohm, 0.7 V p-p) |
3 |
BLUE |
|
Blue Video (75 ohm, 0.7 V p-p) |
4 |
RES |
|
RESERVED |
5 |
GND |
|
Ground |
6 |
RGND |
|
Red Ground |
7 |
GGND |
|
Green Ground |
8 |
BGND |
|
Blue Ground |
9 |
KEY |
- |
Key (No pin) / Optional +5V output from graphics card |
10 |
SGND |
|
Sync Ground |
11 |
ID0 |
|
Monitor ID Bit 0 (optional) |
12 |
SDA |
|
I2C bidirectional data line |
13 |
HSYNC or CSYNC |
|
Horizontal Sync (or Composite Sync) |
14 |
VSYNC |
|
Vertical Sync which works also as data clock |
15 |
SCL |
|
I2C data clock in DDC2, Monitor ID3 in DDC1 |
主要利用Pin9的5V电压
|