Hi. I hope someone can help me with a suggestion for this.
I need to connect a Piezo transducer to the IC from a USB computer keyboard, so that I can use it as an external trigger which can be hit with a drumstick.
I have built a similar system using momentary switches, operated by hand, which works well
However, when I connect the Piezo to the IC and connect this via USB to the computer, then the Piezo is triggered as a buzzer.
I am guessing that this is because the USB buss has a voltage to drive external disk drives and similar appliances
Can anyone therefore suggest what I can do to make the peizo function only as a trigger?
All help gratefully received...
I need to connect a Piezo transducer to the IC from a USB computer keyboard, so that I can use it as an external trigger which can be hit with a drumstick.
I have built a similar system using momentary switches, operated by hand, which works well
However, when I connect the Piezo to the IC and connect this via USB to the computer, then the Piezo is triggered as a buzzer.
I am guessing that this is because the USB buss has a voltage to drive external disk drives and similar appliances
Can anyone therefore suggest what I can do to make the peizo function only as a trigger?
All help gratefully received...