In a flipflop circuit, at a time only one transistor conduct and other cutoff and when it gets a trigger pulse from outside source then first transistor is cutoff and 2nd transistor conducts, thus output of transistor is either logic0 or logic1 and it remains in one state 0 or 1. 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. The main component of this clap switch circuit is the electric condenser mic, which has been used as a sound sensor. Clap switch has the ability to turn onoff any electrical component or circuit by the clap sound. Clap pattern based electrical appliance control irjet. Employs the principle of electrostatics and consequently, require voltage supply across the capacitor for it to work. In this project it gives knowledge of 555 timers, i. You know, the kind where you clapclap and the light turns on, clapclap again and the light turns. Search cloud what is the conclusion of clap switch important. Clap switch using transistor electronic projects, power. Clap switch circuit is a basic electronics project, made from the basic components such as ic 555 timer. The only unusual component is the single coil latching relay. Clap switch circuit diagram using ic 555 circuit digest.
Certificate it is certified that the work contained in the thesis titled clap switch byg. 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. Now, we are going to deal another circuit named clap switch circuit for devices. The circuit changes its output state only when you clap twice within the set time period. 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. We already seen the right part of the circuit in how to get the monostable output using 555 timer. Here we are using electric condenser mic for sensing the sound, transistor to trigger the 555 timer ic and 555 ic to turn on. We will use two basic clap switch circuit diagrams i.
Simple clap switch circuit diagram using relay clap on. 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. It contains four master slave flop and also contain divide by two and divide by five counter. Pdf this paper presents the design of a clap activated switch device that will serve well. The clapoperated circuit is a circuit which operates by clapping from a remote point. Basic types of switches are spst, spdt, dpst and dpdt. When the mic get the clap sound or the sound of whistle, a negative going pulse appears at the common input of the bistable. Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. It produces a small electrical signal which is amplified by the succeeding transistor stage. Electrical engineering stack exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. The usart is used to debug the code and help understand how the software works.
Olokede, seyi stephen 45 communication flow when need be. Ne555 timer ic which is configured in monostable mode 2. Clap switch circuit rookie electronics electronics. I will present two circuits for clap switches, both of these circuits will be based on 555 ic and 4017 ic. We have already seen the circuit diagram, working and applications of 9 way clap switch circuit. This circuit can switch on and off light a fan or a radio etc. This is a project on clap sw itch which can switch onoff any electrical circuit by the sound of the clap. Control led by clap using arduino and sound sensor. How to make a clapclap on clapclap off switch circuit. Simple clap switch circuit using transistors tested. 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 on clap off switch circuit diagram using 555 timer ic.
Pdf clap switch a mini project report submitted in the. It also takes into considerations the illiterates that may. An example of a sound activated switch is the one that works by mere clapping of hand. The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. How to make clap switch circuitsimple clap onoff switch. Pdf analysing efficiency and effectiveness of clap switch. Clap switch circuit for devices circuit working and. Condenser mic basically converts sound energy into electrical energy. Clap switch is a basic electronics miniproject, made with the help of the basic components. It switches on and off electrical appliances with a sound of clapping hands.
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. Lakshmi sowmya11004215 has been carried out in under my supervision and that this work has not beensubmitted elsewhere for a degree. Using these circuits, you can control electrical appliances. 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. This could be likened to the stopwatch system used in the international.
Deepak nandi present an clap switching work prior to. The sound of clap is received by a small microphone that. Working and schematic diagram of clap swith circuit. 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. These signals are then given to the transistor t1 base which in return trigger the ic1 pin2. The single pole single through spst is a basic onoff switch that just connects or breaks the connection between two terminals. Although its name is clap switch, but it can be turned on by any sound of approximately same pitch of clap sound.
It is known as clap switch because the condenser mic. This is a simple clap switch circuit with high sensitivity. The major advantage of a clap switch is that you can turn something e. In this clap switch, circuit clap is acting as a pulse for the flipflop circuit. Clap switch a mini project report submitted in the partial fulfillment of degree of bachelor of technology. Pdf design of a clap activated switch researchgate. The circuit presented here clap switch consists of silicon transistor and is divided in three main section i.
Today we will discuss about making a simple clap switch that operates when it detects two clapping sounds in a row. If you are a beginner electronics learner, and love to do new project experiment then this is a great circuit for you. Unfortunately rereeling is not available at the present time for this item. It uses an electret microphone as a transducer for converting a clapping sound into an electrical signal. What are the advantages disadvantages and applications of. It is known as clap switch, because the condenser mic which. When you will by the condenser mic, it will come without wires and you have to solder two wires for either polarity.
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