DIY Water Level Monitoring Circuit is good for tank or reservoir, it use IC 555 timer in astable mode and make repeated signal, hence, when water reaches a set level then buzzer turns ON. Also, the circuit helps to stop water overflow and is useful in home, factory and farm. Circuit Working: Parts List: Components […]
555 Timer Projects
Tone Generator Doorbell Circuit using Dual IC 555 Timers
This tutorial explains a Tone Generator Doorbell Circuit using dual IC 555 timers, also the circuit is simple and works well when we press the button One IC works in astable mode and other in monostable mode and it is very important for making sound to run a 8Ω speaker. Also, the circuit needs 9V […]
Simple 555 Timer Based Time Sense Tester Circuit
Simple 555 Timer Based Time Sense Tester Circuit is fun and easy to make, it uses IC 555 and make time delay, so press one switch and start timer. Then guess time presses second switch and it stop and then LED show result and it is good for learning how brain feel time. Also, circuit […]
Electronic Coin Toss Circuit using IC 555 and JK Flip-Flop
Many times people make choice by flipping coin, but this method is not always fair but sometimes it give biased result and therefore, to fix this we can use Electronic Coin Toss Circuit using IC 555 and JK Flip-Flop. It works like real coin flip using digital technology and LED. This circuit has two main […]
Electronic Game Scorer Circuit
To begin with, we call this circuit an Electronic Game Scorer Circuit because it uses a 555 timer IC, a 74LS192 counter, a 74LS247 decoder, and a 7-segment display. When player presses the button the circuit counts the score and each press increases the number on display, so it is easy to keep score in […]
Simple Light to Frequency Converter Circuit using Timer IC 555
Simple Light to Frequency Converter Circuit using Timer IC 555 changes light brightness into frequency signal, it is useful for light measure, optic sensing and automation. Also, circuit uses IC 555 timer in astable mode and photodiode to catch light, as more light means more frequency which is easy to see link between light and […]