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Figure 6.13 GPIO Control
3. System status
In order to display the current status information of the equipment itself, it can be
monitored and located through the system status bar. The system status includes
system resource status and connection status. The system resources mainly
include CPU temperature, memory usage and disk usage; the connection status
includes system service connection, RFID connection and antenna connection, as
shown in Figure 6.14 below.
Figure 6.14 System Status
