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 […]
Timer Circuits
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 […]
30 Minutes Timer Circuit using CMOS IC 4011
30 Minutes Timer Circuit using CMOS IC 4011 is good for long time delay with few minutes to many hours, also this timer turns OFF device after 30 minutes. Furthermore, it is useful for automation, delayed ON/OFF and save energy, also this type of circuit is good to save power; circuit use special chip called […]
Simple Car Headlight Timer Circuit using Transistors
Simple Car Headlight Timer Circuit using Transistors is cool design which keeps car headlights ON for 1.5 minutes after engine is OFF. Also, it is very useful in dark place which gives light for short time. Circuit uses easy parts like transistors, resistors, capacitor, relay and few more and these all work together for timing. […]
Simple 12V Single Lamp Flasher Circuit
Simple 12V Single Lamp Flasher Circuit make lamp blink ON and OFF which looks cool; also this circuit is simple and strong and is good for 12V car lamps. Furthermore, we can use this circuit for turn signals, warning lights and decorative lighting. The circuit uses a BC557 transistor and an IRF530 MOSFET for switching […]
Simple Lamp Flasher Circuit using IC LM395
This post shows a Simple Lamp Flasher Circuit using IC LM395 to flash a lamp ON and OFF, also LM395 IC is a strong power transistor which works like a switch. Circuit needs only few parts and can handle high current and it has safety features like heat and current protection. Even if design is […]