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Micro vibration sensor alarming circuit diagram – Circuit Schematic
Micro vibration sensor alarming circuit diagram
This circuit includes micro vibration sensor, trigger delay circuit and control circuit, the figure is as shown. The micro vibration sensor contains vibration s...
Infrared sensor high voltage dangerous voice warning circuit diagram – Circuit Schematic
Infrared sensor high voltage dangerous voice warning circuit diagram
Pyroelectric infrared sensor head is same with the figure. When it detects the human body infrared signal in guarding zone, the sensor head will output a positi...
Infrared sensor high voltage dangerous voice warning circuit diagram – Circuit Schematic
Infrared sensor high voltage dangerous voice warning circuit diagram
Pyroelectric infrared sensor head is same with the figure. When it detects the human body infrared signal in guarding zone, the sensor head will output a positi...
Monitor and TV high-voltage (KV level) protection circuit diagram – Circuit Schematic
Monitor and TV high-voltage (KV level) protection circuit diagram
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Monitor and TV high-voltage (KV level) protection circuit diagram – Circuit Schematic
Monitor and TV high-voltage (KV level) protection circuit diagram
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Memory doorbell circuit – Circuit Schematic
Memory doorbell circuit
Pressed doorbell switch K1, the doorbell phonation, lighted up LED D3; if there are nobody to open the door, guests leave, D3 still on, this means there were gu...
Memory doorbell circuit – Circuit Schematic
Memory doorbell circuit
Pressed doorbell switch K1, the doorbell phonation, lighted up LED D3; if there are nobody to open the door, guests leave, D3 still on, this means there were gu...
DOOR AJAR MONITOR – Circuit Schematic
DOOR AJAR MONITOR
The monitor senses an ajar door and, if the situation isn`t corrected within 20 seconds, sounds a beeping alarm. The circuit is controlled by a magnetic reed sw...
DOOR AJAR MONITOR – Circuit Schematic
DOOR AJAR MONITOR
The monitor senses an ajar door and, if the situation isn`t corrected within 20 seconds, sounds a beeping alarm. The circuit is controlled by a magnetic reed sw...
Ultrasonic electronic rodent repeller circuit – Circuit Schematic
Ultrasonic electronic rodent repeller circuit
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Ultrasonic electronic rodent repeller circuit – Circuit Schematic
Ultrasonic electronic rodent repeller circuit
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Recordable electronic doorbell – Circuit Schematic
Recordable electronic doorbell
The recordable electronic doorbell is composed of the recording and playback integrated circuit IC, resistors Rl-R6, capacitors Cl-C4, microphone BM, speaker BL...
Recordable electronic doorbell – Circuit Schematic
Recordable electronic doorbell
The recordable electronic doorbell is composed of the recording and playback integrated circuit IC, resistors Rl-R6, capacitors Cl-C4, microphone BM, speaker BL...
Politely welcoming electronic doorbell – Circuit Schematic
Politely welcoming electronic doorbell
The politely welcoming electronic doorbell circuit is composed of the trigger control circuit, audio amplifier output circuit, music circuit, voice delay contro...
Politely welcoming electronic doorbell – Circuit Schematic
Politely welcoming electronic doorbell
The politely welcoming electronic doorbell circuit is composed of the trigger control circuit, audio amplifier output circuit, music circuit, voice delay contro...
Password electronic doorbell 2 – Circuit Schematic
Password electronic doorbell 2
The password electronic doorbell circuit is composed of the trigger circuit and music generating circuit, and it is shown in Figure 3-119. Trigger circuit is co...
Password electronic doorbell 2 – Circuit Schematic
Password electronic doorbell 2
The password electronic doorbell circuit is composed of the trigger circuit and music generating circuit, and it is shown in Figure 3-119. Trigger circuit is co...
Password electronic doorbell 1 – Circuit Schematic
Password electronic doorbell 1
The password electronic doorbell circuit is composed of the electronic password circuit and music occurred circuit, and it is shown in Figure 3-118. Electronic ...
Password electronic doorbell 1 – Circuit Schematic
Password electronic doorbell 1
The password electronic doorbell circuit is composed of the electronic password circuit and music occurred circuit, and it is shown in Figure 3-118. Electronic ...
Inductive electronic doorbell 1 – Circuit Schematic
Inductive electronic doorbell 1
The inductive electronic doorbell circuit is composed of the inductive electronic switch and music generator circuit, and it is shown in Figure 3-115. Inductive...