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 […]
Segment Displays Inside Segment Displays Segment Displays contain LEDs arranged in a specific fashion such that, various characters or shapes can be displayed, by turning ON selective segments in different combinations. Shape of the LED is rectangular (to appear as a segment).Generally, these are used to display numbers. As of now, alpha-numeric characters can also
How to work with Light Emitting Diode (LED) in Proteus In this post we will be learning on how to use the “Light Emitting Diode (LED)” component in Proteus simulation software. In case you have not got on through the basics of Proteus, here is the link – Proteus PCB Design and Simulation Software – Introduction. Note:- You may
If you have read the previous article – Why switch to ARM ? Introduction to ARM Micro Controllers – you must have had a basic idea on what makes ARM7 superior to other more commonly found 8-bit architectures. You must also have noticed the complexity of the ARM architecture. The flexible and modular design makes
Are you a beginner in Electronics wondering where to start? Well, we’ve all been there once like you, swimming on the shores not knowing where to go and wondering, “What’s the difference between resistance and capacitance?†or “Who is Georg Simon Ohm and why does he have a law?â€Â  In this article, we are reviewing
It is true that beginners should start off with 8051 or AVR to get a clear understanding of how microcontrollers work. The documentation of these devices is very readable and simple to understand. But if you have worked with these architectures for some time, you have probably felt your creativity being throttled by the resource
LED matrix displays can be used to display almost anything. Most modern LED sign boards uses various types of matrix boards with controllers. In this tutorial we are going to interface a single color 8×8 LED matrix with Arduino and display a few characters in it. 8×8 matrix consists of 64 dots or pixels. There
 In this tutorial, we will be learning on how to use the “Switch” component in Proteus simulation software. In case you have not got on through the basics of Proteus, here is the link - Proteus PCB Design and Simulation Software – Introduction. 1.1 Basic Operation of a switch A switch is component that is used to
Wireless motion sensor alarms are commonly used in homes or office premises as a security protection device. As the name suggests, an alarm is set to turn on, when the device detects the presence of someone (human or animal) in the range of the device, when they shouldn’t be. The movement or motion of the
Proteus is a simulation and design software tool developed by Labcenter Electronics for Electrical and Electronic circuit design. It also possess 2D CAD drawing feature. It deserves to bear the tagline “From concept to completionâ€. About Proteus It is a software suite containing schematic, simulation as well as PCB designing. ISIS is the software used
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 a lot of promising features. The digital door lock is securely placed with passwords. However, this may also attract unethical hackers, therefore, an extra layer of security
Interfacing stepper motor to 8051 microcontroller. This article  is about interfacing stepper motor to 8051 microcontroller. Many guys were asking here to show how to interface stepper motor to 8051 microcontroller. I think this is the time. Stepper motors are widely used in industrial, medical, consumer electronics application. In simple words, anywhere precision rotation or positioning
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
In this article, we are publishing a tutorial on how to interface seven segment LED display to Arduino. Seven segment displays are used in many embedded system and industrial applications where the range of outputs to be shown is known beforehand. Basic 1 digit seven segment display can show numbers from 0-9 and a few characters.
In this article, we are presenting a tutorial on how to interface LM35 and Arduino along with its program. Once we successfully interface arduino and lm35, we will go on to build a temperature display using arduino and a 16×2 LCD module which constantly monitors temperature around the measurement field/range of LM35 and displays the
In this tutorial, we are building an interesting application using Arduino and PIR Sensor. A Burglar Alarm – is basically an intruder alarm or an anti theft alarm. So this project is all about building an anti theft alarm or an intruder alarm using Arduino and PIR sensor. It is possible to enhance this project
This article is about interfacing GSM module to 8051 microcontroller. GSM module has become a very commonly occurring hardware in embedded system applications and the knowledge on how to interface GSM module with microcontroller is very essential if you want to become a good embedded system designer. GSM module GSM (Global System for Mobile communications)
In this article, we are going to learn how to interface/connect PIR Sensor or Passive Infrared Sensor to Arduino. We have written a tutorial on how to interface PIR sensor to 8051 previously in CircuitsToday! So a PIR sensor which is also known as Pyroelectric sensor or Passive Infrared Sensor is basically an electronic sensor
In this article, we are going to learn how to interface MQ2 Gas Sensor with Arduino. MQ2 is basically a general purpose gas sensor (similar to MQ5) which can sense a broad range of gases like LPG, Butane, Methane(CH4), Hydrogen and in addition to these gases MQ2 is sensitive to smoke as well. In a
We have published lots of interesting arduino projects like GSM based Fire Alarm System , Line Following Robot, RFID Based Access Control System and many other useful projects. This time, we are publishing a highly useful home application – Gas Leakage Detector using Arduino and GSM Module with SMS Alert and Sound Alarm. Â We have
In this guide, we learn how to interface MQ5 Gas sensor (which is a generic Gas Sensor more suited to detect and determine LPG concentrations) with Arduino. In this tutorial, we are using the MQ5 Gas sensor module (which is widely available in market) . This module has two output possibilities – an analog out
Working of induction cooktops Induction cooktops are very popular in all households. They have lots of advantages over gas and electric cooktops and are more efficient. But have you ever wondered how an induction cooktop works? The working of an induction cooktop is very simple. It has more to do with electrical engineering than electronics
Humidity sensor using 8051 Â (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) Â 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
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
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
