Have you ever used the NE555 timers? I have used it since 36 years ago. Now, still use it. It's not out of date. We don't waste time with questions.…
IC-555 timer is an integrated circuit used for timer, pulse, oscillator application. They can be used to the time delays, flip-flop. They have 8 pins so easy, and small circuits.
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See 3 ideas of 555 DC polarity probe tester circuit. Check Car Electrical in easy, find open circuit, automotive short circuit, loose connection. Learn more
See: 555 PWM DC LED dimmer circuit in 12V source. For a lot of loads even control the speed motor. Nearly with loss and high performance
This is timer circuit uses a 555 IC timer. it small,compact,portable. For the snooze alarm by buzzer when some 5 to 30 minutes. It make easy with pcb layout
Many how to make simple touch switch circuit project. To build easy. Using transistor and IC like 555 timer, 4011 CMOS, flip-flop IC.
This is power battery saver circuit using an IC-555 timer. The lamp is controlled with a PWM mode by adjusting of potentiometer VR1. And, PNP power transistor drives a lamp. Sometimes…
Here are LED light sequencer circuit that using IC-4017 and IC-555.