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Centralized control of the rescue alarm circuit
Source: InternetPublisher:smallembedded Keywords: Alarm circuit centralized control BSP light emitting diode Updated: 2020/05/04
It can be used for hospital bed calls, and can also be used for anti-theft alarms in multi-story buildings, dormitories, warehouses and other places
. Only 3 monitoring locations are shown in the figure, but there can actually be many monitoring locations.
It adopts thyristor control, uses KD9561 analog sound integrated circuit A for alarm, and uses light-emitting diodes for position display.
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