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VII.
I/O Configuration
1. I/O Connection
a. Please connect the GND & DO pin to the external relay (buzzer) device.
b. Please connect the GND & DI pin to the external trigger device.
c. I/O PIN definition
• GND (Ground): Initial state is LOW
• DO (Digital Output): DC 5V
• DI (Digital Input): Max. 50mA, DC 5V