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One of the water shortage alarm circuits
Source: InternetPublisher:柯南道尔 Keywords: Alarm circuit BSP multivibrator Updated: 2020/11/02
When the water level in the water container is lower than a certain set value, the alarm
will send out an alarm signal.
It uses 555 time base integrated
circuit A. A multivibrator is composed of A and resistor-capacitor components .
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