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“Band Pass filter is one which can pass only a specified band of frequencies. For example a band pass filter for woofers have the lower cutoff frequency as 200Hz and upper cutoff frequency as 2KHz, that is the mid range …
“An analogue proximity circuit built with active and passive components Hey there, thanks for coming around, I would love to walk you through on how to create a fully functional proximity sensor and understanding the logic behind it…They are …
“This is an easy to construct dual-stage microphone pre-amplifier. The project can be used as a sound sensor or microphone pre-amplifier. The 1st op-amp pre-amplify the very low-level signal coming from the condenser microphone and 2nd op-amp provides more boost …
“In todays article, I will show you running lights based on three popular microcircuits: an operational amplifier microcircuit LM358, a timer microcircuit NE555, and decimal counter microcircuit CD4017. The running lights schematic diagram and printed circuit board (PCB) were developed …
“There is nothing more satisfying then building a circuit and having it work as you intended and nothing so infuriating at it failing and not knowing why! There’s usually a few main culprits that can cause a circuit to …
“Hello everyone! Thank you for stopping by this instructable. This is a very exciting project where I have made this TL494 based modified square wave module that is controlled by a crystal oscillator for having super accurate output frequency of …
“In this project guide, we show you how to use your Desktop PCB Milling Machine to make an electret mic preamp. This circuit, based on an LM358 operational amplifier, is essential for a number of audio-reactive projects. Lets dive in …
“Have an awesome project in mind using some LEDs. In that project I will be using some LED Fading Effect and few LED Chaser Circuits. But before jumping onto that, I thought I should create a short tutorial and show …
“Introduction In this project we will build a simple USB MIDI plug-and-play breath controller. It is designed using easy to find cheap components so that the total cost remains affordable and well below commercial equivalents. This is the basic version …
“Build an affordable Homebrew Hakko 907 Digital Soldering Station! Enjoy the variable and constant temperatures that can reach up to 525C. The project only requires few components and roughly costs around $7 (excluding the repurposed power supply). Barely could I …