Electronic chart system
8
positive, Pin 2 is negative)!
Power Interface definitions as shown right:
1.
The power of positive electrode
2.
The power of negative electrode
The keyboard interface definitions as shown right:
1.VCC
2.KB
—
DATA
3.GND
4.KB
—
CLK
USB
interface definitions as shown right
:
1.VCC
2. DATA+
3.GND
4. DATA-
Data 1 as shown below:
Data 2 as shown below:
Data 3as shown below: