Pdf design of a clap activated switch researchgate. Analysing efficiency and effectiveness of clap switch mechanism. It contains four master slave flop and also contain divide by two and divide by five counter. Ne555 timer ic which is configured in monostable mode 2. The sound of clap is received by a small microphone that is shown biased by resistor r1 in the circuit. Share on tumblr this clap switch circuit using ic 555 is a hobby circuit, makes led to glow while you clap or make louder noise. Clap switch circuit is a basic electronics project, made from the basic components such as ic 555 timer. This is a simple clap switch circuit diagram project. When you clap once, the relay is activated and the light or any load is turned on. To turn onoff any appliance, you just have to clap twice.
Clap switch circuit for devices circuit working and. In the above explanations we learned a simple clap activated switch circuit which incorporated an ic for implementing the desired onoff toggling actions. This circuit can onoff a 220v electronic device like fan, lamp by the sound of clap. Open the arduino serial monitor window as shown in the video to see what the value is that is read from the analog pin.
Before you make a circuit glowing 220v bulb, learn about relay, otherwise, it can be dangerous. The main component of this clap switch circuit is the electric condenser mic, which has been used as a sound sensor. High sensitive clap operated switch circuit without microcontroller. After building the above circuit, load the following sketch to the arduino. The clap activated switching device can basically be described as a low frequency. In this project we are going to make clapper circuit using the concept of adc analog to digital conversion in arduino uno. Working and schematic diagram of clap swith circuit. A clap switch circuit is a sound sensitive 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. The sound picked up by the electret microphone is first amplified to a level suitable for further processing.
It also takes into considerations the illiterates that may. Working principle of clap switch circuit is based on the above discussion. An example of a sound activated switch is the one that works by mere clapping. It switches on and off electrical appliances with a sound of clapping hands.
In this clap switch, circuit clap is acting as a pulse for the flipflop circuit. Clap switch using transistor electronic projects, power. We will use two basic clap switch circuit diagrams i. This construction will give mono pulse when trigger received from mic, the duration of pulse time varies respect to r2 and c2 connected with ic555. 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. The figure below shows a project schematic of a clap switch circuit. Design of a clap activated switch leonardo journal of sciences.
While traveling recently, my family had trouble powering the 5 smartphones, 2 tablets, and 2 laptops while driving. Clap switch has the ability to turn onoff any electrical component or circuit by the clap sound. You can connect any dc or ac appliance with the output of the relay to make it. Although its name is clap switch, but it can be turned on by any sound of approximately same pitch of clap sound. We have previously built clap switch and clap on clap off switch, using 555 timer ic. One more plus point of this circuit is that there is no fear of the electrical shocks as you are not required to touch any of the mechanical switches physically. Now, here is a clap switch circuit using 555, used to control any appliance by clapping five times.
Browse through a total of 32 ic 741 projects circuits. When you clap for the second time, the relay is deactivated and the light is turned off. Audio trigger stage is build around microphone and transistor t 1. You can see the circuits and connections in the above schematic diagram of clap switch. This clap operated on off switch circuit is useful to on off any appliance. 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. Pdf clap switch a mini project report submitted in the partial. We are going to use a mic and uno to sense the sound and trigger a response. The complete circuit diagram of this simple clap switch project is shown below. Pdf analysing efficiency and effectiveness of clap. The output will goes to high 1 for a certain time and it will come back to the low state. Friends in this video i will show you how to make a clap switch circuitsimple clap onoff switch using 4017 iccontrol light fan by clapfriends it is a. Clap switch block diagram an audio power amplifier is an electronic amplifier that amplifies lowpower audio signals signals composed primarily of frequencies between 20 20 000 hz, the human range of hearing to a level suitable for driving loudspeakers.
Introduction this is a project on clap switch which can switchonoff any electrical circuit by the sound of the clap. This value is what is being checked in the sketch to trigger the clap. Clap switch is a basic electronics miniproject, made with the help of the basic components. If you want to design a switch circuit to turn on and turn off without reach a physical switch then try this simple clap switch circuit with relay, this circuit is designed with timer ic 555, dual d flip flop ic 7474 and a electromagnetic relay. The basic idea of clap switch is that the electricmicrophone picks up the sound of your claps, coughs, and thesound of that book knocked off the table. Clap switch is an interesting hobby circuit which turns on the lights with a clap sound.
The circuit changes its output state only when you clap twice within the set time period. 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. The present design uses a different principle and utilizes only transistors for the above triggering actions. It is known as clap switch because the condenser mic. Simple clap switch circuit diagram using relay clap on. Clap operated switch a small condenser microphone is connected at the base of transistor t1, which is biased from resistor r1 10 kiloohms. Two transistors cross connected as a bistable multivibrator change state at each signal. Shadow sensors are widely used to detect the movement of a person. The second 10uf is charged through the 5k6 and 33k and each time a sound is recognized by electret microphone, the negative excursion of the waveform takes the positive end of the. Design and construction of clap activated switch tomiwa a. The relay module can be connected to the clapswitch to operate 100220v ac lamps. The time for which the output stays high can be controlled by a suitable rc values. How to make clap switch circuitsimple clap onoff switch. If you are a beginner electronics learner, and love to do new project experiment then this is a great circuit for you.
If you wish to on and off the device without a penny shifting from your space then this circuit is helpful for you. The clap sound sensed by condenser microphone is amplified by transistor t1. Clap switch circuit diagram using ic 555 circuit digest. Clap switch circuit using 555 engineering projects. It produces a small electrical signal which is amplified by the succeeding transistor stage. Clap switch a mini project report submitted in the partial fulfillment of degree of bachelor of technology. Condenser mic basically converts sound energy into electrical energy. 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.
It uses an electret microphone as a transducer for converting a clapping sound into an electrical signal. Simple clap switch circuit diagram 220v using relay. Today we will discuss about making a simple clap switch that operates when it detects two clapping sounds in a row. 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. The major advantage of a clap switch is that you can turn something e. Since, the positive input is connected to the internal reference voltage source, gp1 pin can be used as a. The only unusual component is the single coil latching relay. This circuit can switch on and off light a fan or a radio etc. The basic idea of clap switch is that the electric microphone picks up thesound of your claps, coughs, and the sound of that book knocked off the table. Clap switch circuit for devices summary of clap switch circuit. Analysing efficiency and effectiveness of clap switch mechanism based on the ne 555 clap switch and arduino clap switch. 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. Inside a flipflop circuit, at any given time just one transistor triggers while the other remains cutoff and once it receives a trigger pulse coming from external source subsequently 1st transistor gets switched off and 2nd transistor is activated, therefore output of. By default the output of this circuit will be low 0.
Olokede, seyi stephen 45 communication flow when need be. Abstract clap switch is a switch which can switch onoff any electrical circuit by thesound of the clap. The circuit will switch on the relay and an led when a loud sound is detected by the microphone for example clap, whistle or any other loud sound. We simply combined these two kits and made one complete clapswitch kit. Regarding your second question, i have already given the schematic on the same page, see below the clap switch page, there is another schematic with the name, clap switch glowing 220v bulb. In the first circuit, i will control a single relay using clap switch. Simple clap switch circuit using transistors tested. Fully assembled clap switch for 100220v ac light bulbs. Design and construction of clap activated switch ijett. Pdf this paper presents the design of a clap activated switch device that will serve. Here the simple circuit diagram of clap switch built using transistors.
Pdf clap switch a mini project report submitted in the. The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. Lecturer, department of physics and electronics, adekunleajasin university, akungbaakoko, ondo state, nigeria abstract a sound activated switch is a device that utilizes sound to control appliances. This is another clap on off circuit diagram using 555 timer and 7474 ic. You can switch on and switch off the appliance at your room by simple clapping or by a sound. The clapping sound is converted into electrical energy by the microphone and amplified by transistor t1. This circuit toggles the leds each and every time it detects a clap or tap or short whistle. What are the advantages disadvantages and applications of. How to make clap switch diy project using 555 timer ic. You can use this circuit concept in many ways to activate sound based project. This clap switch has an led on it and a loud sound activates the switch.
Previously we had posted a simple clap operated switch. When clap the load is switch on and when again clapped then load is switch off. Clap based fan switching system allows for switching fan on and off by detecting user clap, get this mini project kit with circuit diagram at nevonprojects. Initially, the transistor is in off state because there is not enough 0. This clap on clap off switch basically turns on or off the device, by using the clap sound, as switch.
The circuit diagram and the accompanying timing diagram will be discussed briefly to explain the basic operation of the circuit. Clap switch using transistor circuit wiring diagrams. Ne 555 timer ic is an essential electronic component of the clap switch. This is a simple clap switch circuit with high sensitivity. Clap switch circuit diagram using 555 and 74ls74 clap on.
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