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Old 14-09-2021, 10:48   #1
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AIS alert to trigger GPIO or script

An AIS alert generates a sound in OpenCPN, but so far all amplifiers I connected to my raspberry were not silent when there is no sound: there's always hissing. Especially when I turn up the volume. I'd rather hook up a buzzer to one of the GPIO pins. The buzzer can then also be used by other scripts. Anyone have an idea how to do this? Thx!
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