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User Manual
The above prompt will appear if there are no tags available for operation in the radio frequency area.
For the meaning of other returned information, users can refer to the document: R2000 module serial
interface communication protocol V4.0.
Every time the UID of the tag is successfully read, the buzzer will beep once. If the buzzer beeps slightly
longer, it means that the reader has activated the anti-collision function and recognized multiple tags at the
same time.
2.5
Other Settings
2.5.1Operating Temperature Monitoring
When the reader is used continuously at high intensity, heat will be generated. The user can monitor the internal
working temperature of the reader through the built-in temperature sensor to avoid overheating (the working
temperature exceeds 65 degrees Celsius). If the temperature is too hot, you can stop reading and writing tags for a
period of time.
The operation interface for monitoring temperature is as follows:
2.5.2 Set GPIO Level
GPIO is the general-purpose input and output interface. It provides users with the function of triggering and
controlling each other between peripheral devices and readers. This reader provides two optically isolated inputs
(GPIO1 and GPIO2) and two relay outputs (GPIO3 and GPIO4).
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