Password based door lock system using 8051 microcontroller circuit design uses five major components – a Microcontroller, an L293D Motor Driver, a DC Motor, a 4×4 Matrix Keypad and a 16×2 LCD. Here, ...

Step 5: Then Copy the generated code and paste in the program of 8051 in Keil uVision. Do some changes and compile the code. Now your code is ready to upload in 8051 Microcontroller. Circuit ...

A LCD is interfaced to the microcontroller to display the status and a motor is interfaced to the microcontroller via the motor driver. The motor is rotated forward or backward, depending on the ...

First we need to connect LCD to 8051, you can learn this from here: LCD Interfacing with 8051 Microcontroller. Then we need to connect GSM module to 8051, now here we should pay some attention. First ...

This project can be use for turning ON/OFF an AC 220v 50Hz device. 8051(89c51) microcontroller is used in this project. 16 x 2 Lcd display is used for displaying time. - mmkumr/Time-Switch-8051. Skip ...

When water level reaches to quarter level, now LCD displays QUARTER and still motor runs. For further levels, LCD displays the messages HALF and ¾ FULL. When tank is full, LCD displays FULL and motor ...

Electrocardiogram (ECG) monitoring is one of the most important patient vital sign. Many design for ECG amplifier has been established. In this paper we describe a unique design of a single supply ...