A pulse frequency counter, which calculates a signals frequency in hertz (Hz), is a crucial instrument in electronics. The development of microcontrollers such as the Arduino has made the process of creating a frequency counter more readily available and economical. This article describes how to use an Arduino Uno and a few other parts to […]
Meters and Testers
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Simple Op-amp IC Tester Circuit
Operational amplifiers, often known as op-amps, are essential parts of electronics that are used extensively in filtering, amplification, and analog signal processing. Maintaining the functionality and dependability of a circuit requires testing an op-amp integrated circuit IC before utilizing it. To swiftly and simply confirm an op-amps fundamental operation, an op-amp IC tester circuit is […]
Digital Thermometer Circuit using Arduino and IC LM35
The goal of this project is to construct a digital thermometer with an IC LM35 temperature sensor and an Arduino microcontroller. The Arduino translates the voltage that the IC LM35 outputs in relation to temperature into a readable value. For a very long time, people have used thermometers to measure temperature. For ease of visualization, […]
Simple Function Generator Circuit using IC L8038
An integrated circuit called the IC L8038 is used to produce somewhat twisted waveforms such as sine, square, and sawtooth waves. It functions by adjusting the frequency, which is adjustable between 0.001Hz and 300 KHz using an external timing capacitor and resistor. It is able to modulate and sweep frequencies using an external voltage input. […]
How To Test a Multi-Core Wire using Cable Tester Circuit
A cable tester circuit is a tool used to confirm that a cable is functioning, usually by looking for shorts (wires that are connected incorrectly) and continuity (open wires). A cable tester circuit is particularly helpful when working with multi-core wires, which are cables that have numerous insulated conductors bundled together. This guarantees that every […]
Simple Tachometer Circuit
A basic tachometer circuit is a DIY electrical instrument for determining a shafts or disks rotating speed. We need a tachometer to determine the rotation speed or revolutions per second RPS of a rotating shaft or wheel. This basic tachometer circuit was created using two seven segment display units and a slotted opto isolation module […]