Connection of music alarm detection components
Source: InternetPublisher:武林萌主 Keywords: Alarm BSP alarm circuit Updated: 2021/01/21
If different detection components are added to the alarm circuit , alarms for different purposes can be formed.
Figure 13-44 is a music alarm circuit, using C2875E music
circuit.
If
various detection components as shown in Figure 13-45 are added to the alarm circuit in Figure 13-44 , the following various alarms will be constructed .
Figure 13-45 (a) is for magnetically controlled proximity alarm; Figure (b) is for
magnetically controlled removal alarm; Figure (.c) is for temperature alarm; Figure (d)
is for moisture sensitive alarm; Figure (. e) is for light-controlled alarm; Figure (f) is for sound
-controlled alarm; Figure (g) is for liquid level alarm; Figure (h) is for over-voltage
alarm; Figure (i) is for inductive high-voltage alarm. Alarm distance:
2.5-8m at lOkV high voltage; 5-20cm at 220V mains power.
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