555 time IC is very powerful and versatile IC, it can be used in many forms. In this tutorial we are going to see how a 555 IC can be used as Audio Amplifier. A low power audio signal can be amplified using 555 Timer IC.
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Heartbeat Counter using MSP430
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Here is my project on counting the heart beats using an MSP430G2553, and a dual op amp ic, LM358, i think any other dual op amp can work in its place [to be sure, just check the pinouts before replacement.
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8 LED Color Oscillator
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Blue - negative, ground Red - positive, Vcc Brown - 74163 pin 11 (Output A) Green - 74163 pin 12 (Output B) Magenta - 74163 pin 13 (Output C) Gray - inverter output
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Mosquito Repellent Circuit
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The concepts of these mosquito repellers are simple and we can build a simple mosquito repellent circuit at home easily by using 555 timer IC and few other commonly available components. Let’s see the concept of mosquito repellent circuit in detail.
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Astable Mode of 555 Timer IC
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If an oscillator of a particular frequency and mark to space ratio is required, the method would be to calculate periodic time from the required frequency and the discharge time and charge time using the formulae for tD and tC described in Oscillators Module 4.3. To do this, some component details will be needed.
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Arduino Humidity Measurement
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Humidity and temperature are common parameters to measure environmental conditions. In this Arduino based project we are going to measure ambient temperature and humidity and display it on a 16x2 LCD screen.
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555 Monostable Circuit
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When the 555 IC is used to produce an MONOSTABLE circuit - it will only pulse once. Monostable circuits can be used to turn lights/LEDs on or off just once. They are also used in many more school based circuits.
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Serial LED Flasher Circuit
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In this tutorial we are going to build a Heart shaped serial LED flasher circuit using 555 timer IC and 4017 IC. It is an interesting DIY which you can build yourself for yourself or gift someone special to you.
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Reaction Time Game using 555 Timer IC
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Reaction timer is a game to test how fast you reacts. This game which we have developed using 555 IC is for two players where first player starts the game by pressing start button. As soon as the START button is pressed, 7 segment display starts displaying 0 to 9 numbers in a high speed.
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1 Minute Timer Circuit
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As the name suggest 555 timer is basically a “Timer”, which create a oscillating pulse. Means for some time output pin 3 is HIGH and for some time it remains LOW, that will create a oscillating output.
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