User guide

Remarks: <1> Default of color parameter system of LED lattice screen is 1 (showing
diagram with lighting lamps);
<2> clearScreen( ), after screen clearing function is called, the color parameter will be
reset as 1;
Returned
value
N/A
Prerequisite
N/A
Called
function
N/A
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7. drawBitmap
Function
name
drawBitmap
Function
object
void drawBitmap (uint8_t x, uint8_t y, uint8_t Bitmap_Width, uint8_t *Bitmap);
Performanc
e
description
Bitmap (lattice diagram) show function. Bitmap height is fixed as 8 (pixel);
Input
parameters
x: Value range of top left corner x-coordinate of bitmap (lattice diagram): 0 ~ 15;
y: Value range of top left corner y-coordinate of bitmap (lattice diagram): 0 ~ 7;
Bitmap_Width: Width (pixel) of bitmap (lattice diagram) :
Bitmap: Array name of bitmap lattice code (buffer area);
Returned
value
N/A
Prerequisite
N/A
Called
function
writeBytesToAddress ( ); // Write certain bytes to specified address;
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8. drawStr
Function
name
drawStr
Function
object
void drawStr (int16_t X_position, int8_t Y_position, const char *str);
Performanc
e
description
Character strings show function. Provisionally, it is only able to show upper and lower
case letters, figures, and blank space, and unknown character will be filled with blank
space;