Hello folks,
I have a Telephone Caller ID unit with a Light Emitting Diode (LED) that flashes when someone calls me whose number is stored in the telephone directory of the ID unit.
Is there a Very easy way I could solder something up so that as well as or instead of the LED flashes that it rings some kind of loud piezo loudspeaker or buzzer or bell so I could get sound as well?
Anyone know what I would need. The voltage going to the LED would be so tiny wouldn't it so I would really have to bump up that voltage to make a buzzer sound wouldn't I?
Thanks,
Andy.