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Mini Projects

Simple Radiation Sensor Circuit

Last updated on 26 May 2026 by Admin-Lavi Leave a Comment

Simple Radiation Sensor Circuit is like small spy for rays which one cannot see, it can smell different radiation like from light bulb, electromagnetic, or X-ray (ionizing one) etc. Furthermore, this circuit have special sensor when radiation detects sensor feels it and send signal. The circuit then uses that signal to modify things such as […]

Filed Under: Mini Projects, Security and Protection, Sensors and Detectors

Simple USB Reading Lamp Circuit

Last updated on 26 May 2026 by Admin-Lavi Leave a Comment

Simple USB Reading Lamp Circuit is like small power house for ones book reading; as it helps to make small lamp easy to carry and it take power from USB port like from computer, laptop or power bank also. Also, this small lamp give light when one wants to read book or need more light […]

Filed Under: DIY Projects, Hobby Circuits, LED and Lamps, Mini Projects

Simple UJT LED Flasher Circuit

Last updated on 25 May 2026 by Admin-Lavi Leave a Comment

Simple UJT LED Flasher Circuit is very simple way to make LED blink ON and OFF, as it uses special transistor name UJT which one work like small flasher switch. Here, UJT give pulse electric and make LED ON and OFF again and again with same time always; also this circuit is good for fun […]

Filed Under: LED and Lamps, Mini Projects, Oscillator Circuits

Simple 1 Hz Pulse Frequency Generator Circuit

Last updated on 25 May 2026 by Admin-Lavi Leave a Comment

To begin with, a Simple 1 Hz Pulse Frequency Generator Circuit creates one pulse every second and engineers widely use this circuit in clocks, timers and signal generation applications. Circuit Working: Parts List: Components Values Quantity Resistors 10k 1/4 watt 1 220Ω 1/4 watt 1 Preset 100k 1 Capacitors Ceramic 10nF 1 Electrolytic 10µF 25V […]

Filed Under: 555 Timer Projects, Mini Projects, Oscillator Circuits, Timer Circuits

Simple Time Delay Relay Circuit

Last updated on 25 May 2026 by Admin-Lavi Leave a Comment

Can anyone think small timer for their electric things? This Simple Time Delay Relay Circuit work like stopwatch for power; it waits for some time before turning ON or OFF something like light or motor. Also, this wait time can be same always like 5 second or can change using timer knob, main reason to […]

Filed Under: Automation Circuits, DIY Projects, Mini Projects, Timer Circuits

Simple Multi Siren Tones Circuit using IC UM3561

Last updated on 25 May 2026 by Admin-Lavi Leave a Comment

This Simple Multi Siren Tones Circuit using the UM3561 chip works like a small sound box for emergency vehicle sounds. Moreover, the special UM3561 chip can create many siren noises, such as the “wee woo” sound of a police car or the fast tone of an ambulance. Furthermore, it only needs few more parts and […]

Filed Under: Alarm Circuits, Audio Circuits, DIY Projects, Hobby Circuits, Mini Projects, Security and Protection

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