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Chapter 2 Hardware Installation
Chapter 2
Digital I/O Power Select
JP17 is used to select the power of DIO (Digital I/O) signal: +5VDU (default) or +5V.
JP17
A61
Battery
A61
Digital I/O Output State
Based on the power level of DIO (Digital I/O) selected on JP17, JP18 (DIO pin 0-3) and JP19
(DIO pin 4-7) are used to select the output state of Digital I/O: pull high or pull low. When
selecting pull high, the power selection will be the same as the JP17’s setting.
DIO 4-7
(JP19)
DIO 0-3
(JP18)
1-2 On: +5V or +5VDU
(default)
2-3 On: GND
A61
Battery
A61
3
1
2
3
1
2
2-3 On: +5V
1-2 On:
+5VDU (default)
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