circuit projecttiny door guard
#door guard
#security
#sensor
#alarm
#home automation
#microcontroller
#motion detection
#wireless
#notification
#safety
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Wireless remote control switch circuit 5
The wireless remote control transmitter circuit consists of control buttons S1 to S16, resistors R1 to R3, a capacitor C1, a regulator diode VS, a crystal oscillator BC1, and DTMF encoder integrated circuits IC1 and IC2. The circuit components are...
Computerize Your Room/House
You have read about computerized rooms or seen home automation products advertised in electronics magazines. You have decided to try it yourself. However, it is important to note that this project is not inexpensive. A computer is required, which is...
clap sensor construction
The clap sensor is a straightforward circuit that consists of a PC microphone, a microcontroller, and an output. The circuit design features the ATtiny84 microcontroller, chosen for familiarity with the AVR architecture and accessibility to necessary tools. The ATtiny84 is...
POWER LINE MODEM FOR COMPUTER CONTROL
This circuit employs an 87C57 microcontroller along with several peripherals to convert X-10 power-line carrier-code formats from a personal computer for use with an X-10 power-line interface in a home-control system. Software details can be found in the reference.
The circuit...
Fridge Door Alarm Circuit
Emits a beep if the door remains open for more than 20 seconds. This circuit is housed in a compact enclosure and is positioned in the refrigerator near the lamp or the opening.
The described circuit functions as a door alarm...
delay
This article outlines the construction of a simple microcontroller-based delay circuit designed for photographic applications, such as drop or high-speed photography. It is capable of controlling the trigger lag for cameras and flash units, generating periodic trigger pulses, or managing...
MICROCONTROLLER BASED AUTOMATIC ROOM LIGHT CONTROLLER
This project involves an automatic room light controller with a bidirectional visitor counter using a microcontroller. It is designed to manage room lighting and accurately count the number of individuals present. When a person enters the room, the counter increments...
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...
doorbel
This smart doorbell system is designed for use in industrial environments. It is microcontroller-based and controls a horn and a flashlight.
The smart doorbell system utilizes a microcontroller to manage its operations, making it suitable for industrial applications where reliability and...