automatic door circuit
#automatic door
#sensor
#motion detection
#security
#home automation
#PIR sensor
#motor control
#access control
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Automatic Room light Control With Bi Directional Visitor Counter
The objective of this project is to create a controller-based model that counts the number of individuals entering a specific room and activates the lighting accordingly. This is achieved through the use of sensors that detect the current number of...
2 -Y- connection automatic three-speed motor acceleration control circuit
Figure 3-118 illustrates an automatic acceleration control circuit. This circuit employs a male contactor time relay, enabling the motor to start automatically at a low speed before transitioning to high-speed operation.
The automatic acceleration control circuit depicted in Figure 3-118 is...
boost Why should I worry about a motor causing my supply voltage to shoot up when the back-EMF cant exceed the supply voltage
In motor control circuits, precautions must be taken to prevent the motor from feeding back into the power supply, which can cause the supply voltage to rise and potentially damage components. However, unless an external force is accelerating the motor,...
The alarm circuit diagram for safety box and other metal objects
When an individual touches the safety box or other protected metal objects, the sensor circuit generates a pulse to the alarm circuit. The positive edge of this pulse activates the semiconductor and thyristor flash GE, subsequently triggering the camera to...
home automation Installation
First and foremost, if one is not skilled with tools and electrical systems, it is advisable to hire a qualified electrician rather than attempting to undertake this task independently. The electrician should review this page for specific cautions and advice....
Pots water alarm circuit
The flowers in pots require watering, as relying solely on the observation of moist soil surfaces can be unreliable. To address this issue, a flower watering indicator has been developed. This circuit includes a field effect transistor (VT1), a second...
Sensor-Activated Relay Pulser Circuit
A sensor activates transistor Q1 to turn on the low-frequency 555 oscillator, which generates pulses to control LAMP II. The sensor may respond to variations in light or temperature. Either resistor RA or RB can function as the sensor, depending...
Object motion detector circuit diagram
The core component of the motion detection circuit is the motion detection chip IC1 (KC778B). The signal frequency from the PIR sensor is low, ranging from 0.1Hz to 10Hz, while the bandwidth is quite broad, which the chip will optimize....
Security Monitor
This circuit can be utilized in a garden setting to detect unusual sounds or wildlife noises. It can also monitor sounds around a car parked in a remote location. The cable used for the setup can either be visible or...