A Boost Converter LED Torch Circuit is a simple but really important tool for portable lighting. This project shows you how to build a super efficient LED torch using the MAX660 chip which acts like a voltage booster. The IC MAX660 can increase the voltage from a 3V battery making it possible to power several […]
Simple QRP Antenna Tuner Circuit for RF Applications
QRP is a term used in amateur radio that means sending signals with low power. It comes from Morse code Q signals, where ‘QRP’ tells someone to ‘turn down the power.’ Generally, when using QRP there are specific power limits: for CW (Morse Code) and Digital Modes, you can use a maximum of 5 watts […]
Designing a UJT-Based Audio Tone Generator Circuit
Designing a circuit that uses a Unijunction Transistor UJT as an audio tone generator is a fun and simple project. It creates a cool electronic musical instrument that can play different sounds. This circuit works based on a relaxation oscillator which is a key feature of the UJT. You can use different pushbuttons to change […]
Simple 555 Timer Based Time Sense Tester Circuit
The Simple 555 Timer Based Time Sense Tester Circuit is a cool and easy electronic project that helps you test how well you can tell time. It uses a special chip called the IC 555 timer set up in a way that allows it to create a specific time delay. To start the timer you […]
Simple Air Puff Controlled LED Circuit
The “Simple Air Puff Controlled LED Circuit” is a cool and easy electronic project that lets you turn off an LED just by blowing air at it. This neat feature can be used in different areas like touchless controls, fun gadgets and interactive displays. The main part of this circuit is a electret microphone which […]
Electronic Coin Toss Circuit using IC 555 and JK Flip-Flop
In many situations where people need to make choices, it is pretty common for them to just flip a coin. However, this simple method can sometimes be unfair leading to biased results. To solve this problem you can use an electronic coin toss circuit that mimics a random coin flip using digital technology and LED […]