Yesterday, I wrote briefly on a circuit which allows one to send or communicate audio using light as the communication channel. In that circuit only the NE555 Timer with the sine wave signal as input audio was used for purpose of testing. Here, I w…
Here I will describe a circuit called Pulse Frequency Modulator (PFM) for light-based communication built with NE555 timer IC operating in astable mode . Its primary purpose is to convert an analog audio signal into a series of high-frequency li…
The 555 timer IC is a versatile electronics device because it can be used in different electronics circuits, from power supply, to motor control signals, to timing signal, pulses with different pulse witdth, that is PWM(pulse width modulation) signa…
I came across a frequency doubler circuit built with 555 timer IC. I checked this circuit with proteus simulation, but I did not get exactly double of the input signal frequency. I got this circuit diagram from the book Electronics projects volume …
Imagine working on a DC-powered project when you suddenly realize that you need an AC component in your circuit. It could be an AC light or an AC motor causing the problem. What would you do in this situation? The solution lies in converting the ava…
In the world of electronics, the 555 timer stands as a stalwart component, known for its versatility and reliability. Among its many applications, the astable mode of the 555 timer is a fascinating tool, especially when engineered to function as a s…
In the expansive landscape of electronic design, precision and reliability are paramount. The simulation of a Monostable with the 555 Timer stands at the crossroads of innovation, offering engineers a powerful tool to craft and validate intricate ti…
In the world of electronics, the 555 timer IC (integrated circuit) stands as a ubiquitous component, often considered the workhorse of many electronic projects due to its versatility and ease of use. One of the intriguing applications of this IC is …
The 555 timer IC is a versatile and widely used integrated circuit. It can be used as a timer, oscillator, and even as an audio tone generator. Here, how the 555 IC can be used as an audio tone generator and how it can be used. First, let's talk…
Frequency modulation (FM) is a popular technique for transmitting information over long distances. It involves varying the frequency of a carrier signal in accordance with the message signal amplitude to be transmitted. This technique finds widespre…
555 Timer is a reliable timer IC(Integrated Circuit) that can be used for number of circuit such as frequency divider, pulse width modulator, linear ramp generator, missing pulse detector, waveform generator, voltage controlled oscillator(VCO) , FSK…
Here it is demonstrated how one can build VCO(Voltage Controlled Oscillator) using 555 Timer an explains how it works. 555 Timer is a popular timer IC that can be used to build many electronics circuit application such as FSK(Frequency Shift Keyin…
The above animation shows how a 555 timer works as an oscillator. This is useful in understanding how the current flows in the circuit and the voltage drop at various points in the circuit. In the above circuit animation, the resistors and the cap…
Gas sensor MQ-2 is used here with ATmega32 microcontroller to detect gas presence and display the level of the gas on LCD. MQ-2 gas sensor can detect LPG, smoke and hydrogen gas, butane, CO2, alcohol etc so you can use it in many projects. Here we …
