Boncuk
New Member
Hi,
I'm working at a project to open gates automatically. When I was about designing an alarm circuit to indicate emergency power cut-off in case the gate is jammed I got the idea that a sweeped tone won't be overheared easily.
I found chips for telephone ringers, but they are single tone only. (The same can be done making a gated oscillator circuit using a CD4093).
Is there any IC out there which is easy to use?
Regards
Boncuk
I'm working at a project to open gates automatically. When I was about designing an alarm circuit to indicate emergency power cut-off in case the gate is jammed I got the idea that a sweeped tone won't be overheared easily.
I found chips for telephone ringers, but they are single tone only. (The same can be done making a gated oscillator circuit using a CD4093).
Is there any IC out there which is easy to use?
Regards
Boncuk