The only unusual component is the single coil latching relay. These are many simple audio amplifier circuit diagram using transistor. 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. Transistor t1 is used as the preamplifier and the rest are used for driving the. Clap switch using transistor circuit wiring diagrams. We will use two basic clap switch circuit diagrams i. The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. In this transistor circuits ebook, we have presented about 100 interesting circuits using transistors and chips. Clap switch project report pdf ppt download abstract. This working of this circuit is based on amplifying nature of the transistor, switching nature of transistor, relay as an electronic switch. 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 simple electronic circuits using transistor bc547. Here the simple circuit diagram of clap switch built using transistors. This circuit toggles the leds each and every time it detects a clap or tap or short whistle.
Today we are going to make a simple clap switch, how to switch on the lights, for a while, with a single clap. 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. In the circuit, i will control a single relay using clap switch. 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. Ne555 timer ic which is configured in monostable mode 2. This electric signal from the microphone is then amplified by using a transistor q1 as shown in circuit diagram. Simple clap switch circuit using transistor duration. Circuit diagram, description of clap switch and other.
This is a simple clap switch circuit with high sensitivity. Clap switch control fan light by clap using 4017 ic youtube. Clap switch circuit using bc547 transistor youtube. 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. Two transistors cross connected as a bistable multivibrator change state at each signal. This clap operated on off switch circuit is useful to on off any appliance. Clap switch circuit diagram circuit diagram, block.
It switches onoff a white led or electrical appliances through claps. Condenser mic picks up sound vibrations c by the clap. This circuit is built around timer ic 555 ic1, cmos ic 74ls93 ic2 and five bc547 npn transistors t1, t2, t3, t4 and t5. They also save a lot of circuit designing and quite often consume less current than discrete components. If you wish to on and off the device without a penny shifting from your space then this circuit is helpful for you. Clap on clap off switch circuit diagram using 555 timer ic.
Pdf clap switch a mini project report submitted in the. In the above explanations we learned a simple clap activated switch circuit which incorporated an ic for implementing the desired onoff toggling actions. This will help us to search some objects in the dark, when you are watching tv or. Pdf design of a clap activated switch researchgate. Clap switch circuit is a basic electronics project, made from the basic components such as ic 555 timer, bc547 transistors led resistors, capacitors etc. Clap on off switch with 4017 ic and bc547 transistor. Before you make a circuit glowing 220v bulb, learn about relay, otherwise, it can be dangerous. Hello friends, today in this video ive shown how to make a simple clap switch using only transistor. This is another clap on off circuit diagram using 555 timer and 7474 ic. While there are numerous means of generating the latching function, the latching relay greatly simplifies the circuit and provides a relay contact.
The circuit can sense the sound of claps from a distance of meters. This is the circuit of a very sensitive clap switch. When clap the load is switch on and when again clapped then load is switch off. Currently, ics has been used in many audio amplifiers, especially small circuit. Clap switch control fan light by clap using 4017 ic. Clap switch a mini project report submitted in the partial fulfillment of degree of bachelor of technology. 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. Because the trigger is always low, the output will always be high. Clap switch has the ability to turn onoff any electrical component or circuit by the clap sound. Pdf analysing efficiency and effectiveness of clap. Watch the video of clap switch circuit diagram project circuit description as shown in the circuit a very few number of parts is used including relay, transformer, condenser microphone, few transistor, a lamp etc. At the time you clapped in front of the microphone, pin 3. It produces a small electrical signal which is amplified by the succeeding transistor stage.
Simple clap switch circuit using transistors tested. Today we are going to make a simple clap switch circuit. You can use this circuit concept in many ways to activate sound based project. Now, we are going to deal another circuit named clap switch circuit for devices. Simple clap switch circuit using transistor youtube. After a long experiment here we design and verified a clap switch circuit using few transistor. Clap switch circuit diagram using ic 555 circuit digest. The circuit can sense the sound of claps from a distance of 12 meters.
A few of the interesting and useful hobby electronic circuit diagrams already published in this blog have been selected and compiled here for quick reference and understanding. Using these circuits, you can control electrical appliances by simple clapping. The sound of clap will be captured by a tiny mic which is indicated through a biasing resistor r1 within the circuit. The main component of this clap switch circuit is the electric condenser mic, which has been used as a sound sensor. You can switch onoff up to four different electrical equipment tv, fan, light, etc in 16 different ways.
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. Design and construction of clap activated switch international. Different types of electronics and electrical projects and circuit ideas. 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. Although, the name of the circuit is clap switch it can be turned on by any sound which has pitch similar to a clap sound. In short, a transistor conducts current across the collectoremitter path only when a voltage is applied to the base. Electronics, circuit diagram, schematic diagram, electronics projects, diy projects, mini engineering projects. Clap switch circuit for devices summary of clap switch circuit. It contains four master slave flop and also contain divide by two and divide by five counter. This circuit can switch on and off a light, a fan or a radio etc by the sound of a clap. This clap switch circuit using ic 555 is a hobby circuit, makes led to glow while you clap or make louder noise.
Today we will discuss about making a simple clap switch that operates when it detects two clapping sounds in a row. In this tutorial, we will learn how to make a clap switch circuit, using a 555 timer ic. We have used a microphone which converts sound wave into an electric signal. 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. Condenser mic basically converts sound energy into electrical energy, that in turns used to trigger 555 timer ic, through a transistor. Here is the circuit of simple, interesting and inexpensive electronics clapper which produces clap sound, and can be used to control the devices which used clap sound to operate. One of these transistors drives a heavier transistor which controls a lamp. Introduction this is a project on clap switch which can switchonoff any electrical circuit by the sound of the clap. This circuit can switch on and off light a fan or a radio etc. It switches onoff electrical appliances through claps. Condenser mic picks up sound vibrations caused by the clap. 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 this video i am going to make simple clap switch to control home appliances using ic 4017.
One of the most common uses for transistors in an electronic circuit is as simple switches. Clap switch is not restricted to turn the leds on and off, but it can be used in any electric appliances such as tube light, fan, radio or any other basic circuit which you want to turn on by a sound. Abstract clap switch is a switch which can switch onoff any electrical circuit by thesound of the clap. Clap switch circuit diagram using 555 and 74ls74 clap on. A clap switch circuit is a sound sensitive circuit. Design of a clap activated switch leonardo journal of sciences. A couple of bc547 can be used to monitor bad voltage conditions and switch a relay for cutting. Clap switch is a basic electronics miniproject, made with the help of the basic components.
Top 5 elctronic project with bc547 transistor, tri ac, rgb led. A clap switch circuit can turn onoff any electrical component by the sound of a clap. 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 present design uses a different principle and utilizes only transistors for the above triggering actions. A classic example circuit using an pnp device, where the withdrawing or falling positive voltage level at some point of time becomes too low to keep the transistor reverse biased. When no base voltage is present, the switch is off.
In most cases the ic will contain 10 100 transistors, cost less than the individual components and take up much less boardspace. Now the output from the transistor t1 is supplied to the monostable circuit which connects to ne555 ic. This circuit is constructed using basic electronic. I will present two circuits for clap switches, both of these circuits will be based on 555 ic and 4017 ic. Temperature, humidity and heat index meter using arduino. It switches on and off electrical appliances with a sound of clapping hands. 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. But when you need to use transistors, it has several advantages, such as saving you can take old equipment come to made small circuits easier than the ic.