UM0756

Using the front panel board

Doc ID 16031 Rev 1

13/28

Figure 8.

Message display when the MENU/BRGH key is pressed

4.1.6

Demo mode

This key is used to put the system into demo mode. In this mode the system demonstrates

the capability of the STLED316S device to vary the brightness of the individual LED DIGIT

output to a different brightness level.

In this mode, the system displays two messages in sequence:

●

When message "8881" is displayed on the LED display, the LED digits glow with the

same brightness (Figure 9).

●

When message "8882" is displayed on the LED display, the LED digits glow with a

different brightness (Figure 10).

The system remains in demo mode and messages are displayed in sequence until any other

key is touched.

4.1.7

WSENSOR

The system has the capability to measure the output of the water level sensor to determine

water level. When the WSENSOR key is touched, the present water level is displayed on the

LED display (for details refer to Section 4.3.1).

The display is changed to the default display after 5 seconds.

Figure 9.

Demo mode message: same

brightness

Figure 10.

Demo mode message: different

brightness