Condenser mic basically converts sound energy into electrical energy. It is a basic project and also our second project with. Clap switch circuit is a basic electronics project, made from the basic components such as ic 555 timer, bc547 transistors led resistors, capacitors etc. The clapoperated circuit is a circuit which operates by clapping from a remote point. This clap on clap off switch basically turns on or off the device, by using the clap sound, as switch. Dec 31, 2012 chapter 1introduction this is a project on clap switch which can switch onoff any electrical circuit bythe sound of a clap. Clap switch circuit for devices using 555 and 4017 august 30, 2018 by administrator 20 comments we have already seen the circuit diagram, working and applications of 9 way clap switch circuit.
Open the arduino serial monitor window as shown in the video to see what the value is that is read from the analog pin. How to make a clapclap on clapclap off switch circuit. Previously we had posted a simple clap operated switch. When you clap once, the relay is activated and the light or any load is turned on. Clap switch circuit for devices summary of clap switch circuit. It is known as clap switch, because the condenser mic which will be used in this project will have an ability to take the sound having same pitch as the clap sound as the input. Thus by generating clap sound, the output get reversed. Transistor t1 is used as the preamplifier and the rest are used for driving the relays. The fundamental concept of the clap switch is microphone received the sound of the clap or any other sound, the circuit will be activated this kind of system has been helpful of the day to day.
The output will goes to high 1 for a certain time and it will come back to the low state. Now, we are going to deal another circuit named clap switch circuit for devices. Nov 22, 2011 introduction this is a project on clap switch which can switchonoff any electrical circuit by the sound of the clap. I will present two circuits for clap switches, both of these circuits will be based on 555 ic and 4017 ic. In the first circuit, i will control a single relay using clap switch.
Clap switch circuit for devices circuit working and. Analysing efficiency and effectiveness of clap switch mechanism based on the ne 555 clap switch and arduino clap switch. Now, here is a clap switch circuit using 555, used to control any appliance by clapping five times. This clap on clap off switch basically turns on or off the device, by using the clap sound. Pdf design of a clap activated switch researchgate. The condenser microphone picks up the sound of your claps, coughs, and the sound of thatbook knocked off the table. At the same time, you can either on or off up to three devices. Shadow sensors are widely used to detect the movement of a person.
For this circuit, ic ne555 monostable produces a clock pulse, which is used to give an oscillating. We will use two basic clap switch circuit diagrams i. This is the circuit of a very sensitive clap switch. Ni multisim live lets you create, share, collaborate, and discover circuits and electronics online with spice simulation included. And as im going to use relay switch contacts to make a two way light circuit from wall switch it could be on for long periods of time depending on the switch configuration. This clap operated on off switch circuit is useful to on off any appliance.
Olokede, seyi stephen 49 circuit is expected to respond to two claps only when it is received within three seconds to energize a relay which will make connection with an external circuit. You can switch on and switch off the appliance at your room by simple clapping or by a sound. High sensitive clap operated switch circuit without microcontroller. If you wish to on and off the device without a penny shifting from your space then this circuit is helpful for you. Two transistors cross connected as a bistable multivibrator change state at each signal. Could i use both pins 1 and 2 to feed two transistors with separate caps and resistors to create a pulse at either coil. Clap switch with latching relay page 6 all about circuits.
It is known as clap switch, because the condenser mic which. Clap switch is a basic electronics miniproject, made with the help of the basic components. Ic 555 timer in this circuit is wired like a monostable oscillator. 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. After that period the fan turns off and waits for the next clap from the user. This is another clap on off circuit diagram using 555 timer and 7474 ic. 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. Due to the timing configuration set in the 555 timer the fan remains on for a stipulated period of time. We are going to use a mic and uno to sense the sound and trigger a response. 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. Clap switch circuit using 555 engineering projects.
Clap switch circuit diagram using ic 555 circuit digest. Clap switch has the ability to turn onoff any electrical component or circuit by the clap sound. The output state of the switching device circuit can only change, when the circuit receives two claps within a time period that will be determined by the rc. Pdf clap switch a mini project report submitted in the. By default the output of this circuit will be low 0. An electret microphone or simply mic obo04fn0b is used for this purpose. The circuit presented here clap switch consists of silicon transistor and is divided in three main section i. This is a simple clap switch circuit with high sensitivity. After building the above circuit, load the following sketch to the arduino. How to make clap switch circuitsimple clap onoff switch.
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. Get the circuit diagram and working of the circuit details at 9 way clap switch circuit. If we clap the lamp turns on and to switchit off clap again. The main component of this clap switch circuit is the electric condenser mic, which has been used as a sound sensor. It is relatively easy to make a hardware only clap onoff circuit, but i wanted to create a circuit that required two claps to switch on, and two claps to switch off. The only unusual component is the single coil latching relay. In this project we are going to make clapper circuit using the concept of adc analog to digital conversion in arduino uno. Introduction this is a project on clap switch which can switchonoff any electrical circuit by the sound of the clap. Clap switch using 3 different modules buildcircuit.
This value is what is being checked in the sketch to trigger the clap. Pdf analysing efficiency and effectiveness of clap switch. 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 clap switch requires a transducer at the input to convert sound vibrations from clapping hands into electrical energy.
It will give you visual indication of the appliances also like it is on or off. A clap switch is an interesting hobby circuit that turns on the lights with a clap sound. Mar 23, 2018 this is another clap on off circuit diagram using 555 timer and 7474 ic. In this clap switch, circuit clap is acting as a pulse for the flipflop circuit. 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. Simple clap switch circuit diagram using relay clap on. One of these transistors drives a heavier transistor which controls a lamp.
Before you make a circuit glowing 220v bulb, learn about relay, otherwise, it can be dangerous. Pdf analysing efficiency and effectiveness of clap. Here is how to develop clap switch using arduino uno and microphone with circuit diagram, list of components and code. Clap switch circuit diagram using 555 and 74ls74 clap on. How to make clap switch diy project using 555 timer ic. Mar 21, 2018 simple clap switch circuit diagram 220v using relay. One small request, could you please link me to the page of a particular clap switch circuit where, 1. The time for which the output stays high can be controlled by a suitable rc values. The output from the mic is very low in magnitide and so we need an amplifier circuit to boost the detected sound signal. Jul 15, 2018 friends in this video i will show you how to make a clap switch circuit simple clap onoff switch using 4017 iccontrol light fan by clap friends it is a very simple circuit and you can easily. Working principle of clap switch circuit is based on the above discussion.
The mic is biased in to the circuit in such a way that it. While traveling recently, my family had trouble powering the 5 smartphones, 2 tablets, and 2 laptops while driving. Design of a clap activated switch leonardo journal of sciences. Chapter 1introduction this is a project on clap switch which can switch onoff any electrical circuit bythe sound of a clap. Mar 11, 2017 in this clap switch, circuit clap is acting as a pulse for the flipflop circuit. It switches onoff a white led or electrical appliances through claps.
This circuit is built around timer ic 555 ic1, cmos ic 74ls93 ic2 and five bc547 npn transistors t1, t2, t3, t4 and t5. The main objective of clap switch is that on and off of any electrical appliance by a sound of clap. 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. May 05, 2018 a clap switch is an interesting hobby circuit that turns on the lights with a clap sound. Simple clap switch circuit diagram 220v using relay. This circuit has been designed to respond only to two hand claps which occur in relatively quick succession and to ignore one hand clap or even continuous clapping, as well as most other sounds which normally have lower frequency content than a hand clap. Design and construction of clap activated switch international. Simple clap switch circuit using transistors tested. When you clap for the second time, the relay is deactivated and the light is turned off. Simple clap switch circuit diagram using relay clap on clap. Ic 4017 circuits and projects for hobby electronist and school. On clapping there will be a peak signal at the mic which is much higher than normal, this signal is fed to the amplifier, though a high pass filter. However, for that, the resistor and capacitor of the monostable mode circuit should be set in such a way that it short pulse of 1 seconds only. Apr 28, 2017 in this project we are going to make clapper circuit using the concept of adc analog to digital conversion in arduino uno.
Using a toggle switch in the clap switch would offer two stable states for the circuit. Apr 06, 2016 arduino clap switch project circuit diagram. This circuit can switch on and off a light, a fan or a radio etc by the sound of a clap. This is a project on clap sw itch which can switch onoff any electrical circuit by the sound of the clap. It is known as clap switch because the condenser mic. Although its name is clap switch, but it can be turned on by any sound of the approximately same. On first clap, the circuit switches on and on another clap, it switches off. Although its name is clap switch, but it can be turned on by any sound of approximately same pitch of clap sound. I have made this circuit as simple as possible, you can find many complex clap switches using 555 ic with some more components in it, and. It produces a small electrical signal which is amplified by the succeeding transistor stage.
Browse through a total of 32 ic 741 projects circuits. Aug 23, 2018 clap switch has the ability to turn onoff any electrical component or circuit by the clap sound. Clap switch a mini project report submitted in the partial fulfillment of degree of bachelor of technology. The circuit can sense the sound of claps from a distance of 12 meters. The claps must be in quick succession, as seen in the video below, or else it does not work, which is the entire point of the circuit i will go into detail about the circuitry. Audio trigger stage is build around microphone and transistor t 1.
Dec 18, 2010 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. We have previously built clap switch and clap on clap off switch, using 555 timer ic. When clap the load is switch on and when again clapped then load is switch off. Clap switch is popular since our childhood in the days of 90s when basic electronic components were not so easily available and cost was not really towards cheap. Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. The mic is biased in to the circuit in such a way that it doesnt picks up noise signals from the ambience. Aug 30, 2018 clap switch circuit using 555 and 4017. The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. This circuit can switch on and off light a fan or a radio etc. I hope you understood, i want a one way clap switch circuit which only will trigger the load on.
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