Electronic door code lock
#electronic lock
#code lock
#security
#door lock
#keypad
#access control
#microcontroller
#password protection
#home automation
#safety
No description available.
Miniature Real-time Controller
This is my long history the device that controls my home's night light, air-conditioner, etc. The device is a Miniature Real-time Controller. The circuit uses only three chips, a 89C2051, DS275 (or MAX232), and 74LS07 open collector driver. The scheduler...
IR On/Off Switch Using Microcontroller
Turning electrical devices ON or OFF using a remote control is a well-established concept, with numerous devices available that perform this function effectively. To create such a device, it is necessary to construct a receiver and a transmitter, as well...
Midnight Security Light Circuit Schematic
Most thefts occur after midnight when individuals enter the second phase of sleep known as 'paradoxical sleep.' Here is an energy-saving circuit that causes...
An energy-saving circuit designed for security applications can be particularly beneficial during the late-night hours when individuals...
Door Lock on Go
To implement a modification that enables automated locking of the Scorpio's central locking system once a preset speed threshold is reached. This enhancement increases security and safety. Various methods exist for calculating the velocity of an object; in this context,...
Cipher scheme of the module of infrared remote-control between two parties of intellectual family
This system is a control system based on a single-chip computer that allows for remote operation of lighting. The scheme primarily addresses the transmission and reception of signals, as well as program manipulation of various signals once they are processed...
DIAL ALARM-1
This is the lowest cost dialing alarm on the market and shows what can be done with an 8-pin microcontroller. The complete circuit is shown below. You cannot see all the features of this project by looking at the circuit...
home security system
The fundamental design of this project employs an Atmel AT89S8252-24PC Microcontroller, which features 2KB of EEPROM for runtime data storage. An ADC0838CCN analog-to-digital converter will be utilized to process up to eight inputs from sensor devices, including passive infrared sensors...
Microcontroller and Motor Driver Circuit Board
Efforts were made to minimize the number of wire jumpers on this board, but space constraints arose due to the integration of the microcontroller and motor driver on a single board. The design would have been cleaner without the inclusion...
DIAL ALARM-1
This is the lowest cost dialing alarm on the market and shows what can be done with an 8-pin microcontroller. The complete circuit is shown below. You cannot see all the features of this project by looking at the circuit...