| 0,0 → 1,44 |
|---|
| '''Generates the byte array for setting the global brightness.''' |
| def CMD_Set_BC(brightness): |
| barray = bytearray.fromhex('7E 00 02 0A') |
| barray.extend([brightness]) |
| barray.extend([Calculate_Checksum(barray)]) |
| return barray |
| |
| '''Generates the byte array for clearing all pixels.''' |
| def CMD_Clear(): |
| return bytearray.fromhex('7E 00 01 0B F4') |
| |
| '''Generates the command for setting a specific pixel.''' |
| def CMD_Set_Pixel(layer, row, column, r, g, b): |
| barray = bytearray.fromhex('7E 00 07 10') |
| barray.extend([layer,row,column,r,g,b,]) |
| barray.extend([Calculate_Checksum(barray)]) |
| return barray |
| |
| '''Generates the command for setting an entire layer.''' |
| def CMD_Set_Layer(layer, leds): |
| barray = bytearray.fromhex('7E 01 22 11') |
| barray.extend([layer]) |
| barray.extend(leds) |
| barray.extend([Calculate_Checksum(barray)]) |
| return barray |
| |
| '''Generates the command for setting the rotating overlay text.''' |
| def CMD_Start_Text(r, g, b, string): |
| length = len(string) + 4 |
| barray = bytearray.fromhex('7E 00') |
| barray.extend([length, 0x20, r, g, b]) |
| barray.extend(string.encode()) |
| barray.extend([Calculate_Checksum(barray)]) |
| return barray |
| |
| '''Generates the command for stopping the rotating overlay text.''' |
| def CMD_Stop_Text(): |
| return bytes.fromhex('7E 00 01 21 DE') |
| |
| def Calculate_Checksum(barray): |
| s = 0 |
| for entry in range(3,len(barray)): |
| s += barray[entry] |
| return 255 - (s & 0xFF) |