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5.2 Using GPIO
5.3 Using NFC Function
1. NFC Activation Method
2. GPIO_DEMO Instruction
1. GPIO Tail Line Instructions
Activate the NFC function according to Figure.
Regarding the definition diagram of GPIO interface, please see the details in Chapter 1 “1.2
Cable definition”.
This software is used for testing the GPIO functions of device only, and isn't suitable for the
user's standard software.
a. If the input1 or input2 is connected to a high power, key1 or key2 will display “true”.
b. Press set output button to open output, and press reset output button to close output.
c. Press get adc button to read the input voltage.
d. Press upgrade button to update the MCU firmware.
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