In the program process, the motor will emit “Beep” tone at the same time when the LED is flashing.
We use a long time flash and long “Beep---” tone to represent number “5”, so it is easy to identify the items of the big number.
For example, if the LED flashes as the following:
A long time flash” (Motor sounds “B---”) = the No. 5 Item
A long time flash + a short time flash” (Motor sounds “B---B”) = the No. 6 Item
A long time flash + 2 short times flash” (Motor sounds “B---BB”) = the No. 7 Item