Electronic buzzer circuit Needed A switch 10K resistor 0.01uf capasitor * 2 1uf/15v capasitor 8ohm 0.5W speaker 5v-15v voltage resource NE555 ic 56K resistor Now the time for making circuit What is NE555 IC The 8-pin 555 timer must be one of the most useful ICs ever made and it is used in many projects. With just a few external components it can be used to build many circuits, not all of them involve timing. A popular version is the NE555 and this is suitable in most cases where a '555 timer' is specified. Low power versions, such as the ICM7555, are available with the same pin arrangement but their maximum output current is much lower and they should only be used when specified. The 555 can be used in several circuits. Astable- producing a square wave for flashing LEDs, making sounds, driving counters etc.Monostable - producing a single pulse when triggered, this can used for timing.Bistable - a simple memory with two states.Buffer - an inverting...
This blog about electronic circuits and step down and up voltage circuit. mostly about wireless (unguided) media arduino , node mcu etc. Coding with blynk. some cmd tricks and modern robotics ideas.