5 piezo buzzer – Matrix Orbital LK162B-7T User Manual
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LED Indicators
The LK162B-7T has 6 General Purpose Outputs which control 3 bi-colour LEDs. Red, green, and orange-
yellow colours can be created using these software controlled GPOs. Odd numbered GPOs control red
while even numbers switch the green aspects of the LEDs, as shown in the table below.
Table 12: LED Output
Colour GPO
O
GPO
E
Yellow
0
0
Green
0
1
Red
1
0
Off
1
1
4.4 Set LED
Indicators
Dec
Hex
ASCII
254 90
FE 5A
■ Z
Number Colour
Number Colour
Number Colour
v8.0
Immediately sets the state of the specified LED indicator to a specific colour. Temporary unless remember is on.
Number
Byte
LED indicator to be controlled.
Colour
Byte
LED colour state as below.
Table 13: LED Indicator Colour
State
Colour
Off
0
Green
1
Red
2
Yellow
3
6.5 Piezo Buzzer
5.1 Activate Piezo
Buzzer
Dec
Hex
ASCII
254 140
FE 8C
■ î
Time
Time
Time
V7.2
Activates a 500Hz buzz from the onboard piezo buzzer for a specified length of time.
Time
Byte
Duration of the beep in 100 millisecond increments.
5.2 Set Keypad
Buzzer Beep
Dec
Hex
ASCII
254 182
FE B6
■
╢
Setting
Setting
Setting
V7.2
Set activation of a 50ms buzz when specific keypad events occur.
Setting
Byte
Keypad event(s) that trigger a 50ms buzzer beep as shown below. Default is 0.
Table 14: Keypad Buzzer Beep Settings
Setting
Description
0
No Buzz
1
Buzz on Key Press
2
Buzz on Key Release
3
Buzz on Press and Release