All this effort for nothing...
The buzzer appears to draw just over 30 mA's of current, even at 5V. So I will need a tranistor/fet anyways. So thanks for all your help, I am going to "spiderize" my PCB's....
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All this effort for nothing...
The buzzer appears to draw just over 30 mA's of current, even at 5V. So I will need a tranistor/fet anyways. So thanks for all your help, I am going to "spiderize" my PCB's....
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Why a Buzzer instead of a Piezo sounder which is cheaper, draws near no current of consequence and can be driven directly from a PIC via something as small as a 100nF decoupling Capacitor? Another consideration is some buzzers have a serious back-emf problem which will blow your PIC's I/O (or even an external transistor) in no time flat unless you add suppression (more PCB real-estate eaten away).
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Hi BuzzzzOriginally Posted by Buzzz
All this effort for nothing...
The buzzer appears to draw just over 30 mA's of current, even at 5V. So I will need a tranistor/fet anyways. So thanks for all your help, I am going to "spiderize" my PCB's....
I understand ... I was caught on this, somtimes ago ... But I was lucky ( or careful ??? ) , it was just the proto board ...
Alain
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Just a thought -- we use miniature Soberton GT111P speakers which can be connected directly to a PIC pin on 3.3v or 5.0v products and they work quite well...
Good luck with your project... Regards, Mike
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