SCANTECH ID (Champtek company) Discovery SG-20 - Manual (Page 85)

Scantech-ID Discovery SG-20 77
Example 6
Show the text 'Hello World' permanently when the Discovery is idle.
COMMAND or data string COMMENT
0x25 Clear the screen
0x27 0x30 0x33 Set cursor to 0,3
"Hello World" Print text
0x26 0x31 Give the 'Lock screen' command
Example 7
Show Image #5 permanently when the Discovery is idle.
COMMAND COMMENT
0x26 0x32 0x35 Lock screen using bitmap #5
Example 8
How to create this screen with icons:
COMMAND or data string COMMENT
0x25 Clear the screen
0x3b 0x31 Show icon 1 *1
0x3b 0x32 Show icon 2 *1