smokegrub Posted June 9, 2015 Posted June 9, 2015 I placed a jumper across GND and N/O on an IOLinc (#2450) and a piezoelectric buzzer (21N30PQ) connected to 5V and COM. The IOLinc linked first try. Turning the device on produced an audible click but no buzzer. Not being familiar with the IOLinc, is there a potential polarity issue since the buzzer has positive and negative posts? Any suggestions?
stusviews Posted June 9, 2015 Posted June 9, 2015 The (+) terminal of the piezoelectric buzzer should be at 5V and the (-) terminal at COM.
smokegrub Posted June 9, 2015 Author Posted June 9, 2015 Problem resolved. I had the polarity reversed. Thanks.
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