In this article, we are publishing a project which explains different aspects of interfacing a Graphical LCD (GLCD ) with 8051 microcontroller. Nokia 5110 is a 48 x…
DIY Automatic plant watering system This project is about a moisture-sensing automatic plant watering system using 8051 microcontroller. The system simply senses the moisture level and switches on…
Heart rate monitor with SMS alert (Using 8051 and GSM module). This project is about a heart rate monitor that senses the heart rate from the finger tip…
As the world grows to be digitally dependent, even doors can now be designed to be secure and safe. The digital version of the lock and key holds…
PIR sensor based burglar alarm with SMS alert. This project is about a PIR sensor based burglar alarm with SMS alert. The circuit senses the intrusion using a PIR…
Humidity sensor using 8051 (Hygrometer) This project is about a simple humidity sensor based on 8051 microcontroller. Humidity sensor is also called hygrometer. This circuit can sense relative…
RFID Door Access Control System using 8051 In this project, we are going to build an RFID Based Access Control System using 8051 Micro Controller. The same system…
Microcontroller Based Programmable Data-cum-Temperature Display. LCD display are most widely used in applications like token display machine in malls, supermarkets, restaurants, cafe-houses etc. The project presented here demonstrates…
This article is divided into two sections Interfacing PIR sensor to 8051 DIY intruder alarm circuit Interfacing PIR sensor to 8051 microcontroller PIR sensors are widely used in…
Line follower robot using 8051 Line follower robots were one of the earliest automatic guided robots. They are able to follow a line marked on a contrasting background,…
Object counter using 8051 microcontroller. This article is about a simple object counter/visitor counter using 8051 microcontroller . AT89S51 belonging to the 8051 family is the microcontroller used…
We all see Police using breathalyzers on drivers to check if they are under the influence of alcohol. Drink & driving is a crime in all countries. But…
This article is about a simple heart rate monitor using 8051 microcontroller. Like the previous 8051 projects, AT89S51 is the microcontroller used here. The device senses the heart…
This article is about interfacing a hex key pad to 8051 microcontroller. A clear knowledge on interfacing hex key pad to 8051 is very essential while designing embedded…
This article is a compilation of all 8051 based Electronic Projects and Circuits we have developed at CircuitsToday till date. We have one of the biggest collection of…
Ultrasonic range finder using 8051 . A simple ultrasonic range finder using 8051 microcontroller is presented in this article. This ultrasonic rangefinder can measure distances up to 2.5…
Contactless digital tachometer using 8051. A three digit contact less digital tachometer using 8051 microcontroller which can be used for measuring the revolutions/second of a rotating wheel, disc,…
DIY Random number generator A random number generator using 8051 that displays a random number between 0 & 99 is shown in this article. The circuit itself is…
Voltmeter using 8051. A simple 0-5V voltmeter using 8051 is shown in this article. This digital voltmeter has a sensitivity of 200mV which is a bit low but…
ADC (Analog to digital converter) forms a very essential part in many embedded projects and this article is about interfacing an ADC to 8051 embedded controller. ADC 0804 is…
Water level controller using 8051. A water level controller using 8051 is shown in this article. A lot of water level controller projects have been published in this…
