Garmin GMI20 DIsplay: Backlight Level, Day Night Mode and Colours

[TwoCanPlugIn]

FYI.

PGN 126720

Change Backlight Level and Day/Night Mode

byte[0] = 0xE5;
byte[1] = 0x98;
byte[2] = 0xDE;
byte[3] = 0x05;
byte[4] = 0x05;
byte[5] = 0x05;
byte[6] = 0x00;
byte[7] = 0x00;
byte[8] = mode; // 0-Daylight Mode, 1-Night Mode
byte[9] = 0x00;
byte[10] = level; // in 5% increments

Change Colours
byte[0] = 0xE5;
byte[1] = 0x98;
byte[2] = 0xDE;
byte[3] = 0x05;
byte[4] = 0x05;
byte[5] = 0x05;
byte[6] = 0x00;
byte[7] = 0x00;
byte[8] = 0x0D; // Colour Mode command
byte[9] = 0x00;
byte[10] = mode; // 0-Day Full Colour, 1, Day High Contrast, 2-Night Full Colour, 3- Night Red/Black, 4-Night Green/Black