Nokia LCD Display to 8051

Interfacing Nokia 5110 Display to 8051 Micro Controller

jojo July 1, 2017 1 Comment
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 84 graphic LCD that has an internal controller PCD8544 to control all displays and operations. The Nokia 5110 is interfaced to the microcontroller through a serial bus interface. After going through the project you can display the graphics or text you wish to be displayed. So lets begin our tutorial and...
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Moisture sensing automatic plant watering system using 8051.

praveen December 19, 2016 7 Comments
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 the irrigation pump when the moisture is below the set limit. The system switches off the pump when the moisture rises above the set point. The moisture level threshold can be set using a trim pot on the system. The status of the pump (whether ON or OFF) is displayed on...
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Heart rate monitor with sms alert.

praveen August 10, 2016 1 Comment
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 an sends it as a message to a cell pone number. This project is based on an 8051 microcontroller and a GSM module. Heart rate is sensed from the finger tip using a photo transistor / IR LED pair. This method is called photoplethysmography. Photoplethysmography is the volumetric assesment of  an organ...
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Digital Door Lock – Password based Electronic Code Lock using 8051

jojo March 18, 2016 37 Comments
This Digital Door Lock – is simply a password based electronic code lock designed using 8051 micro controller, a keypad and a 12 volt dc relay. In this article, we have designed a simple digital door lock using 8051 -which can be used as a security checking system to limit access to an area/room only for certain individuals with the password. So our digital door lock project can be called with a very wide range of names like a...
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burglar alarm with sms alert - circuit diagram

PIR sensor based burglar alarm using 8051 with SMS alert.

praveen August 10, 2016 1 Comment
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 sensor and sends an SMS to to the given mobile number when an intrusion occurs. The number of intrusions taken place is also displayed on an LCD display. An 8051 microcontroller is used for monitoring the PIR sensor and sending the alert message using the GSM module. An alarm is also...
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Humidity sensor using 8051

praveen December 19, 2016 8 Comments
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 humidity (RH)  from 20% to 95% at an accuracy of 5%. The humidity information is displayed on a 16×2 LCD display. A relay is also provided which is set to be active when the humidity crosses a certain trip point. The circuit is mains operated and it is very easy to...
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RFID Based Access Control System using 8051

jojo October 31, 2017 8 Comments
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 can be named like RFID based door lock or RFID based access management system. If you have been to big hospitals or companies, you might have seen how they used RFID based locks to restrict access to certain areas. In hospitals, only hospital staff with approved RFID tags can access Intensive...
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Microcontroller Based Programmable Data-cum-Temperature Display

praveen February 11, 2016 7 Comments
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 the working through wireless by use of Bluetooth technique. This circuit is designed by Mr. Vivek Kumar Kamboj from Haryana. Circuit and working. This circuit uses microcontroller that accepts data via Bluetooth from various types of gadgets like android based smartphones, laptop, etc. The IC1 AT89C51 is the heart of this...
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Interfacing PIR sensor to 8051 microcontroller

Interfacing PIR sensor to 8051 & DIY Intruder Alarm

praveen July 29, 2018 17 Comments
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 motion detecting devices. This article is about interfacing a PIR sensor to 8051 microcontroller. A practical intruder alarm system using PIR sensor and 8051 microcontroller is also included at the end of this article. Before going into the core of the article, let’s have a look at the PIR sensor and its...
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Line follower robot using 8051 microcontroller

admin January 28, 2018 31 Comments
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, usually a black line on a white surface or a white line on a black surface. Usually, the line follower robot works on a closed loop feedback algorithm where the feedback from the line sensor is used by the controller for correcting the path of the robot. The sensors are usually...
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