2.3.4 Backlight

Step 4. Add 64 to the value calculated in step 3:

let x_y_sum=x_y_sum+64

Step 5. Move this value into the third character of the string curs_pos defined above:

let_byte curs_pos [2]=x_y_sum

Step 6. Execute the instruction to move the cursor to the selected position within the display:

print curs_pos

2.3.4 Backlight

The OPI-7X has an optional backlight, which, depending on the environment in which it is used may make it easier to read the display. The following example demonstrates how to turn this light ON and OFF.

EXAMPLE:

light_on text “<27>V” turn backlight on light_off text “<27>V” turn backlight off

print light_on print light_off