Simple Alarm Clock Circuit Diagram. This simple alarm timer circuit is made with 4060 which has an integrated oscillator with a good stability with a relatively wide frequency range. When the time of the digital clock becomes equivalent to the alarm time a message alarm is shown on the lcd and the alarm pin of at89c51.
This simple alarm timer circuit is made with 4060 which has an integrated oscillator with a good stability with a relatively wide frequency range. After the alarm is fixed the pin of an alarm is connected to vcc through the switch. 555 alarm timer circuit very easyyy.
In the circuit the reed switch is connected across the reset pin 4 of the 555 and the ground.
One of them can put in front of the locker while another one can be placed on the front door. In this circuit the heart of the circuits are ic1 lm8560 which has output the 3 way are. Also this projects we can use jumbo digital clock using simple cmos ics. This simple alarm timer circuit is made with 4060 which has an integrated oscillator with a good stability with a relatively wide frequency range.
