Sub-command = 01H also can be used to eliminate the display buffers, such as for
AT503A, AT502V, AT50C/AT70C,AT506-3W-123, AT506-2W-33A, AT50A-3W-523…etc.
And if send to the other models, like AT505/AT705, AT703, AT502/AT702,
AT506-2W-33…etc, then the message for redisplay is also reset, in other words, redisplay
won’t work after 01H..
4.3.3 Turn LED indicator ON
SUB-COMMAND = 02H
Turn on all the LED light, for AT50C/AT70C, there is a little difference, please refer 4.5.1.2.
4.3.4 Turn LED indicator OFF
SUB-COMMAND = 03H