Hya,
i have a project where a transistor will have the base be feeded from the buzzer positive and collector and emitter will be on a separeted circuit. Ist it possible?
Thx in advance.
Yes you can connect it that way but it will probably blow your transistor and possibly mess up the second circuit. Explain what you are trying to do and what the hardware (buzzer and circuit) is.
thanks for answering.
an egg steammer triggers the buzzer when it ends. i just want a gpio reading that buzzer when it's active 
You could use a small sound card and then there is no electrical connection.
Is it a passive or active buzzer?
An optoisolator might work placed in parallel with the buzzer, you'd just need to figure a plausible series current limiting resistor for its LED.
There would be no direct electrical connection. On the Arduino side you'd just have an input connected to the output side of the opto.
a7
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.