It uses an electret microphone as a transducer for converting a clapping sound into an electrical signal. Lakshmi sowmya11004215 has been carried out in under my supervision and that this work has not beensubmitted elsewhere for a degree. This is a simple clap switch circuit diagram project. Use custom search function to get better results from our thousands of pages use for compulsory search eg. When the mic get the clap sound or the sound of whistle, a negative going pulse appears at the common input of the bistable. Although its name is clap switch, but it can be turned on by any sound of approximately same pitch of clap sound. Clap switch working consider the above circuit into 2 parts, the job of the left part of this circuit is to give the low signal to the right part, which has 555 timer. The major advantage of a clap switch is that you can turn something e. This paper presents the design of a clap activated switch device that will serve well in different phonocontrolled applications, providing inexpensive key and at the same time flee from false. Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. In this clap switch, circuit clap is acting as a pulse for the flipflop circuit. This is a simple clap switch circuit with high sensitivity. Clap switch circuit diagram using ic 555 circuit digest. Clap switch circuit for devices circuit working and.
At the time when some one slap in front of the mic the sound signal is converted into the electrical signal by the condenser microphone. Clap switch is a basic electronics miniproject, made with the help of the basic components. Clap on clap off switch circuit diagram using 555 timer ic. Basic types of switches are spst, spdt, dpst and dpdt. In this project it gives knowledge of 555 timers, i. This is a project on clap sw itch which can switch onoff any electrical circuit by the sound of the clap. I hope you understood, i want a one way clap switch circuit which only will trigger the load on one upon a single clap action and to switch off the load we will physically control the switch to off. Using these circuits, you can control electrical appliances. While there are numerous means of generating the latching function, the latching relay greatly simplifies the circuit and provides a relay contact interface for driving a. You know, the kind where you clapclap and the light turns on, clapclap again and the light turns. All you need is to just clap or you can puff in front of the microphone and after that, the device attached to the microphone becomes on or off.
It can be used as divide by 9 counter by connecting q0 with clock input pin1 cp1 and providing clock pulse to cp0 that is on pin14. How to make a clapclap on clapclap off switch circuit. We have already seen the circuit diagram, working and applications of 9 way clap switch circuit. Clap switch a mini project report submitted in the partial fulfillment of degree of bachelor of technology. The relay only close when the time between a clap and another is approximately correct, thus reducing the chances of the light turn on or off accidentally.
Clap switch circuit for devices circuit working and applications. It produces a small electrical signal which is amplified by the succeeding transistor stage. The clapoperated circuit is a circuit which operates by clapping from a remote point. This could be likened to the stopwatch system used in the international.
Today we will discuss about making a simple clap switch that operates when it detects two clapping sounds in a row. The condenser microphone picks up the sound of your claps, coughs. Employs the principle of electrostatics and consequently, require voltage supply across the capacitor for it to work. Pdf analysing efficiency and effectiveness of clap switch. The circuit presented here clap switch consists of silicon transistor and is divided in three main section i. Working principle of clap switch circuit is based on the above discussion. Deepak nandi present an clap switching work prior to. To turn onoff any appliance, you just have to clap twice. Clap switch work then i found lots of various information and ideas about this project i intended to do the most fascinating thing about these idea is that you. Condenser mic basically converts sound energy into electrical energy. I will present two circuits for clap switches, both of these circuits will be based on 555 ic and 4017 ic. If you are a beginner electronics learner, and love to do new project experiment then this is a great circuit for you. The main component of this clap switch circuit is the electric condenser mic, which has been used as a sound sensor.
The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. The only unusual component is the single coil latching relay. How to make clap switch circuitsimple clap onoff switch. It is known as clap switch, because the condenser mic which. Clap switch circuit is a basic electronics project, made from the basic components such as ic 555 timer. We already seen the right part of the circuit in how to get the monostable output using 555 timer. Pdf clap switch a mini project report submitted in the.
Pdf this paper presents the design of a clap activated switch device that will serve well. It also takes into considerations the illiterates that may. What are the advantages disadvantages and applications of. Clap switch using transistor electronic projects, power. The usart is used to debug the code and help understand how the software works. Unfortunately rereeling is not available at the present time for this item. It is known as clap switch because the condenser mic. An example of a sound activated switch is the one that works by mere clapping of hand.
The circuit changes its output state only when you clap twice within the set time period. Search cloud what is the conclusion of clap switch important. Clap pattern based electrical appliance control irjet. These signals are then given to the transistor t1 base which in return trigger the ic1 pin2. When you will by the condenser mic, it will come without wires and you have to solder two wires for either polarity. Working and schematic diagram of clap swith circuit. It switches on and off electrical appliances with a sound of clapping hands. Clap switch circuit rookie electronics electronics. Control led by clap using arduino and sound sensor. This circuit can onoff a 220v electronic device like fan, lamp by the sound of clap. Two transistors cross connected as a bistable multivibrator change state at each signal. The sound of clap is received by a small microphone that. Now, we are going to deal another circuit named clap switch circuit for devices. The motivating force behind this design is based on the desire to alleviate the problem faced by the aged and physically challenged persons in trying to control some household appliances.
Clap switch has the ability to turn onoff any electrical component or circuit by the clap sound. We will use two basic clap switch circuit diagrams i. This circuit can switch on and off light a fan or a radio etc. Pdf design of a clap activated switch researchgate. Simple clap switch circuit diagram using relay clap on. When you clap or puff on face of the microphone, microphone transferred the sound of clapping into the electrical energy. Olokede, seyi stephen 45 communication flow when need be.
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