Main board name: circuit board with screen

Control board model: GZ-BK008-V1.0

Mainboard description: The interface is R232 interface, which can be connected to 80 external buttons, and can be connected to two display screens at most. The screen displays 2 lines, and the font size can be adjusted. When the screen displays 2 lines, each line has a maximum of 8 characters, and only English and numbers are displayed;

Mainboard screen display operation:

1. The screen only displays two lines, and each line only displays 8 characters. When more than 8 characters are input in the dialog box, only the first 8 characters are displayed; if there are less than 8 characters, spaces can be used instead. If the characters in each line need to be centered, replace it with a space;

2. Input the content of the first line of the screen: 1 plus the desired content, for example: 112345678, the screen displays: 12345678

Input the content of the second line of the screen: 2 plus the desired content, for example: 212345678, the screen displays: 12345678

Clear the content of the first line of screen: directly input 1, select manual send, the first line of screen will be cleared directly;

Clear the second line of screen content: directly input 2, select manual send, then directly clear the second line of screen;

Clear all the contents of the screen: directly enter 3, select manual send, and the screen will be cleared directly;

Motherboard communication protocol: