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Breath Detector Circuit

Last Updated on September 1, 2023 by Swagatam 2 Comments

breath detector circuit

The breath detector circuit I have explained below can be used to check or monitor the breathing function of a human or patient. So I have explained the detailed working of the circuit from the following explanation: Component Functions LM324 Op amp: A few operational amplifiers (op-amps) in the circuit magnify the minute voltage changes […]

Filed Under: Sensors and Detectors Tagged With: Breath, Detector

Footsteps Detector Circuit

Last Updated on August 1, 2023 by Swagatam Leave a Comment

footsteps detector sensor circuit using a loudspeaker

By sensing vibrations from footfall, a Footsteps Detector Circuit is a creative and affordable approach for catching intruders. It employs a simple setup with a low-cost loudspeaker and a mute switch to pick up even the smallest steps. This simple circuit is excellent for enhancing building and garden security. We’ll go through the fundamental components […]

Filed Under: Security and Alarm, Sensors and Detectors Tagged With: Detector, Footsteps

Shock Vibration Detector Circuit using 801S Sensor

Last Updated on July 17, 2023 by Swagatam 3 Comments

basic shock detector using 801S

The shock alarm module that we are presenting to you can be used in a house as well as in a car. Given its low manufacturing cost, it can be replicated in several copies and connected to different positions at home. It can be also installed in a vehicle where it will trigger a siren […]

Filed Under: Sensors and Detectors, Security and Alarm Tagged With: 801S, Detector, Sensor, Shock, Vibration

Mains AC Current Detector Switch Circuit

Last Updated on May 1, 2023 by Swagatam 4 Comments

current transformer prototype image

The circuit I have I have explained in this article allows one to detect the current consumed by a device and to power one or more other devices accordingly. Indeed, the solution of a switchboard is not always applicable because it is often not very practical. Furthermore, some devices such as computers only start when […]

Filed Under: Sensors and Detectors Tagged With: AC, Current, Detector, Mains, Switch

Home Electromagnetic Radiation Detector Circuit

Last Updated on January 1, 2024 by Swagatam 5 Comments

home electromagnetic radiation detector circuit

The assembly proposed in these lines is an electromagnetic radiation detector (power and others) that allows the user to organize their living space with full knowledge. Circuit Description The sensor used for this design is a simple wire coil (L1) associated with the MOSFET transistor (T1) biased at the beginning of its conduction zone by […]

Filed Under: Sensors and Detectors Tagged With: Detector, Electromagnetic, Home, Radiation

Vehicle Body Metal Detector Circuit

Last Updated on November 27, 2023 by Swagatam 2 Comments

block diagram

The main objective we are trying to achieve with this vehicle body metal detector is that only an automobile can trigger the opening of the gate. The solution involving the interruption of a light beam is not suitable, so we turned to a metal detector, as metal is a primary material in any automobile. In […]

Filed Under: Automobile Electronics Tagged With: Body, Detector, Metal, Vehicle

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