Hi friends, I am making a burglar alarm system for my high school project. It uses a PIR sensor, a piezo buzzer, and an LED. I made the configuration on Tinkercad. However, I have a 9V battery and a MPS2 222 AAAA transistor instead of the recommended BC 547 one for these kinds of projects. I wanted to know if I can still use the MPS2 transistor with a 9V battery and what will be the recommended resistance for the circuit?
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Hi friends, I am making a burglar alarm system for my high school project. It uses a PIR sensor, a piezo buzzer, and an LED. I made the configuration on Tinkercad. However, I have a 9V battery and a MPS2 222 AAAA transistor instead of the recommended BC 547 one for these kinds of projects. I wanted to know if I can still use the MPS2 transistor with a 9V battery and what will be the recommended resistance for the circuit?
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What has this to do with Arduino? This is an Arduino forum, not a general shop for everything.
I think you can. Pay attention to the different pinout of the two transistors.
You're missing a resistor in series with the LED.
FOr accurate replies you should provide clear and precise information
its best to use links like this
so what PIR will you use?