buzzer staples set your store and be able to check inventory and pick up at your local store school college quiz buzzer circuit diagram using 555 timer ic here we have built a quiz buzzer circuit using the versatile 555 timer ic which is for 3 persons but we can increase the number of participants or players by increasing the no of 555 ics or by bining two or more ics to her cd4060 timer circuit 1 minute to 2 hours cd4060 timer circuit 1 minute to 2 hours this is a 1 minute to two hour timer switch the 14 stage binary ripple counter type 4060 ic1 has an on chip oscillator capable of stable operation over a relatively wide frequency range 5 30 minuts timer circuit using ic 555 here is a 555 timer circuit project you can use it for the snooze alarm with a buzzer when on time 5 10 15 and 30 minutes or even 1 hour it is easy to make and portable with small pcb timer staples set your store and be able to check inventory and pick up at your local store
Nine Financial To Dos You Can Tackle In Under 10 Minutes from 10 minute timer with buzzer , image source: libertyinvestor.com