LiPo battery charger. Li-Po battery or Lithium-Polymer battery is a rechargeable battery based on the Lithium-ion technology enclosed in a flexible pouch. This soft, flexible pouch makes them very light with a compromise in mechanical strength. Li-Po batteries are widely used in applications where weight is a critical factor. The common applications are radio controlled […]
Nest 2nd Generation Self Learning Thermostat Until recently no one cared about what thermostat they are using. But that is no longer the case. This is the era of smart thermostats, thermostats which can be easily programmed or better self-learning. Nest self learning thermostat is such a programmable, self learning gadget developed by Nest Labs,
Amazon Echo, easily described as the Siri for your home, is an amazing smart gadget by Amazon for your home. Echo is basically an expertly tuned speaker with wi-fi and bluetooth connectivity. Its hardware is very nice, a 9.25†high cylinder with a woofer and a tweeter and is capable of producing 360 degree omni
Ultrasonic water level controller using 8051 microcontroller. A simple water level controller using ultrasonic  range finder module and 8051 microcontroller is discussed in this article.Many projects based on ultrasonic range finder and water level controllers have bee already discussed here. This is just another application of the ultrasonic ranging module. This water level controller can
This is a brief review of the capabilities and ease of use of three of the most interesting, innovative and downright disruptive web-based EDA tools: EasyEDA Upverter Autodesk 123D Circuits (formerly Circuits.io) The same simple astable multivibrator circuit is entered into each tool and the design process followed through simulation (where offered), to PCB layout
Interfacing RFID  to 8051 . RFID or Radio Frequency Identification is a method in which electromagnetic waves are used for transmitting data for the purpose of identifying tags attached to objects. An RFID system consists of a transmitter (tag) and a reader.The tag is encrypted with a unique code and the reader scans this code for the identification
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
In this article,we are going to build a Fire Alarm System using Arduino, LM35 Temperature Sensor and GSM Module. The objectives of this fire detector using arduino is to sense the surroundings for occurrence of fire with help of LM35 temperature sensor, and send 3 SMS alerts to two mobile numbers stored inside the arduino
Its quiet fun to work with RFID based projects! In the previous article, we saw how to interface RFID with Arduino. Interfacing is the first step to create any useful project. So why don’t we create an RFID based Access Control System or an RFID based Door Lock using Arduino? The system I have designed
In this tutorial, we are dealing with yet another interfacing technique. This time we are interfacing an RFID Reader which can read RFID Tags to Arduino. RFID is Radio Frequency Identification. An RFID reader is used to read RFID tags (which contain certain unique data stored in a chip). An RFID reader and an RFID
In this article, we are going to see how to interface the GSM Module with Arduino. There are different kinds of GSM modules available on the market. We are using the most popular module based on Simcom SIM900 and Arduino Uno for this tutorial. Interfacing a GSM module to Arduino is pretty simple. You only
Undoubtedly, frequency is one of the fundamental parameters for any electronic equipment. Frequency specifies the rate of oscillatory movements and vibrations. In electrical and electronics, frequency measures the rate of oscillatory movement of current flowing through a circuit. The international unit of frequency is Hertz that equals 1 cycle per second. Want to know how
A new year has began and people all over the world are looking forward with good hope. What’s in cards for people in the Electronics industry ? Well, the 8th IPCA Electronics Expo India scheduled to happen on August 20-22, 2015 is definitely an event to look forward. This event attended by industry leaders in
Interfacing SPD005G pressure sensor to arduino This article is about interfacing pressure sensor to Arduino. The pressure sensor used here is SPD005G from Smartec . SPD (Smart Pressure Device) is a series of silicon based pressure sensors suitable for industrial as well as house hold applications. These sensors are generally available in plastic inline or
Hi Everyone, Today we are announcing a happy news in CircuitsToday. We are launching an Online Store at We will be Live from today, 18th December 2014. We are launching with only 8051 Micro controller based Project Kits for Engineering Students and Hobbyists. We will be adding more inventories very soon in our online shop.
We have published a digital code lock using arduino some weeks before. This one is a little different. The earlier version was based on a defined password, where the user can not change it. Moreover there was no LCD display interfaced with the project to output lock status. This project is a much improved version
In this article, we compile all the best and interesting projects we have developed using Arduino. These days Arduino projects are used for academic course fulfillment as well. In any case, Arduino is a very interesting platform to build real world projects. List of Arduino Projects Gas Leakage Detector with GSM Module for SMS Alert
Interfacing gyroscope to arduino uno. This article is about interfacing gyroscope to arduino. Gyroscope is a device used for measuring the angular velocity in the three axes. It works under the concepts of angular momentum and can be used to determine the orientation of an object. Typical applications of gyroscope includes missile guidance, flight control,
LPG sensor using arduino with alarm and cutoff. A simple LPG sensor using arduino is shown in this article. This circuit indicates the amount of LPG in the air. The circuit sounds an alarm and trips a relay when the concentration is above a predetermined level. MQ2 is the gas sensor used in this project.
Auto ranging ohmmeter using arduino. This article is about a simple auto ranging ohmmeter using arduino. The measured resistance is displayed using a 16×2 LCD display. The circuit is sufficiently accurate and uses minimum number of external components possible. Before going into the details of this project, lets have a look at the basic resistance
In this article, we focus on Timers/Counters of the 8051 micro controller. The 8051 has two counters/timers which can be used either as timer to generate a time delay or as counter to count events happening outside the microcontroller. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â The 8051 has two timers: timer0 and timer1. They can be used either as timers
Hello Everyone, Lets hope a good day for all! We have been live from 2008 till this date serving you all with fun electronic circuits and projects. In this long span of 6 years, we have come up with a handful of interesting electronic circuits and we have written a couple of good tutorials on
Arduino water level controller / indicator. This article is a about a fully functional water level controller using Arduino. The circuit displays the level of water in the tank and switches the motor ON when the water level goes below a predetermined level. The circuit automatically switches the motor OFF when the tank is full.
One of the most enjoyable part of being an electronics person is creating your own gadgets and using them in daily life. In this article, we are building one of those with the help of SoloPCB design tools, a digital desk clock with temperature display feature. The brain of the circuit is a Microchip
Digital tachometer using arduino plus speed control. Tachometer is a device used for measuring the number of revolutions of an object in a given interval of time. Usually it is expressed in revolutions per minute or RPM. Earlier tachometers purely mechanical where the revolution is transferred to the tachometer through mechanical coupling (cable or shaft)
