BESTEK BNX-H110, Руководство пользователя

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Example #1 (GPI Test)
Script name:
GPI_Test.sh
Definition of the test: This tests demonstrates how to read the GPIO pin value.
The pin #2, #4, #6, #8 are defined as GPO pins with value low.
The pin #1, #3, #5, #7 are defined as GPI pins.
A few jumpers will be added onto pin #1-#2, #3-#4, #5-#6, #7-#8 so pin #1 will read the value of pin #2, pin #3
will read the value of pin #4, …, etc.
Without adding any jumper, all GPI pins are floating, and will read value [high].
Now add two jumpers onto #1-#2 and #5-#6. Pin #1 and pin #5 will now read value [low].