SmartGPU2-LCD480X320Touch-CommandSet

SMART GPU 2 3.5” TOUCH

Command Set

2.12.3 Object Switch –54hex – ‘T’ ascii

Commands (host)

9 bytes

1.- 0x4F (hex), O (ascii). *OBJECT command.

2.- 0x54((hex), T (ascii).

3.- X coord high byte.

4.- X coord low byte.

5.- Y coord high byte.

6.- Y coord low byte.

7.- Switch Size high byte.

8.- Switch Size low byte.

9.- Active State (On/Off).

Responses (device)

1 byte

1.- 0x4F (hex), O (ascii) – success ACK or

0x46 (hex), F (ascii) – fail NAK.

Description

This Command generates-draws an On/Off

Switch object with the received top left X(16bit)

and Y(16bit) coordinates and received Switch

Size(16bit), the resulting Switch will measure

“Switch Size” pixels in X axis and “Switch Size”/2

pixels in Y axis.

This is a simple but useful object to create GUIs

that need switches.

*Minimum “Switch size” accepted parameter is

40(dec), which means that the smallest switch that

can be created is 40x20 pixels.

Example (sent commands)

Example 1:

<4F,54,00,0A,00,0A,00,64,00> Draw an Off(0x00)

state Switch object starting at the top left corner:

X:10(dec), Y:10(dec).