Hi all,
Part of my new project requires an alarm sounder, I am very tight on space ideally I want to use this case
https://www.okw.co.uk/products/okw/smart/zoom/zA9064107.jpg
But I want it as load as possible and Ideally self contained, I am using a 12v 38mah battery I will using a regulator to run a RF RX module and probably a MCU (Attiny13v).
I have played with a few piezo buzzers but they don't appear to be very loud, suspect this is down to driving them from the AtTiny13v directly at 5vPP and probably not running then at optimum frequency.
Thx
Part of my new project requires an alarm sounder, I am very tight on space ideally I want to use this case
https://www.okw.co.uk/products/okw/smart/zoom/zA9064107.jpg
But I want it as load as possible and Ideally self contained, I am using a 12v 38mah battery I will using a regulator to run a RF RX module and probably a MCU (Attiny13v).
I have played with a few piezo buzzers but they don't appear to be very loud, suspect this is down to driving them from the AtTiny13v directly at 5vPP and probably not running then at optimum frequency.
Thx