External Speaker; Watchdog Timer - BOSER Technology HS-7000 Manual

3.21 External Speaker

Aside from the buzzer at location BZ1 onboard, the HS-7000 also
offers a connector (CN1) for an external speaker connection. The table
below lists the pin assignments of CN1.
CN1: External Speaker Connector
PIN Description
1 VCC
2 GND
3 GND
4 Speaker Signal

3.22 Watchdog Timer

Once the Enable cycle is active, a Refresh cycle is requested before
the time-out period. This restarts counting of the WDT period. When
the time counting goes over the period preset of WDT, it will assume
that the program operation is abnormal. A System Reset signal to
re-start when such error happens.
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