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I have arduino uno, nano and mega boards with many modules (relay, ir remote, ultrasonic sensors, etc) and they works well together.

I got raspberry pi 3 model b. Can I use my arduino modules with my raspberry pi?

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In general, NO.

Arduino works on 5V so any module which outputs 5V levels can't be used. These can often be used with level converters.

Some will work, and I have used a few. You need to study each module.

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You can't use all modules. Some of them are incompatible due to the power requirements as @Milliways mentioned. Still, you can connect your prefferable arduino to your raspberry through USB and do whatever you wish through serial port communication - just like you do with your pc.

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