Race start Buzzer IC555

Projects General Guidance
1

hello experts,
i am a hobbiest and working on a race apparatus with esp32
i need to initiate beep like get, set and go on a trigger
i am using 1 pin for start button and 2nd button for buzzer
i managed it in code itself with millis
my beep is;
beep (700ms) - pause (700ms) i.e. GET
beep (700ms) - pause (700ms) i.e. SET
beep (300ms) i.e. GO

recently i came to know about IC555
i am in thought that i need to arrange electronic items like resistor, capacitor, ic etc. in a perticular diagram and it will work as per my requirement
am i right ?
can i do it ?
if so, can i do it with just 1 esp32 pin high/low at once only on a trigger i.e. start trigger without using other pin for buzzer and unnecessary coding

help me please
TIA

2

Are you trying to interface the 555 with the ESP32?

The ESP32 is much simpler to program than a 555.

3

That's like swear in church..... Do it in code.

4

Hello sachenwadekar

Take a view here to use a tone() function with a ESP32.

Have a nice day and enjoy coding in C++.

5

No, it is just a bit old school...
Like a monochrome monitor...
...it has some charm...

6

amber or green ?

7

I like green best!
It is a matter of taste though!
We are getting off topic...

8

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