Suggest me a simple circuit of a 3 beep buzzer

[deadeye]

can anyone give a suggestions of a 3 beep buzzer?a simple circuit would be enough.please don't complicate because i'm new on this hobby.

thanks a lot.

 

[abaidullah]

buzzer

use 555 timer circuit to feed the buzzer

also 8051 can work well for you

 

[deadeye]

Re: buzzer

actually i'm using 555 timer but still it won't work for 3 beeps.can i ask for a design?

 

[nguyennam]

Re: buzzer

Use 3 x 555 timers or 1 x 556 (dual 555) and 1 x 555.
- 1 x 555 as astable oscillator for your sound need, for example 1000Hz.
- 1 x 555 as astabel oscillator with frequency of about 1Hz, or any you want for duration between sounds. This oscillator used to drive the above one.
- 1 x 555 as monostable oscillator (one shot) with duration (pulse length) = 3 cycles of the second astable. This oscillator used to drive the second one.