Kotlin with IoT Applications

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HCMC KOTLIN USER GROUP MEETUP – 17TH DEC 2019

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ABOUT SPEAKER

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KOTLIN WITH IOT APPLICATIONS • Popular use case of Kotlin for Android app development • Extended use case to have Kotlin run on Backend, just like Java language based on JVM • What else? KOTLIN WITH IOT APPLICATIONS • Popular use case of Kotlin for Android app development • Extended use case to have Kotlin run on Backend, just like Java language based on JVM • What else?

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DISCLAIMER

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KOTLIN NATIVE How about having Kotlin to run on device like Raspberry Pi?

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NOT KOTLIN NATIVE

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WITH KOTLIN NATIVE Kotlin Source Code Kotlin/Native Compiler Intermediate Representation LLVM BINARY 0100101.. Frontend Backend

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WHAT TO BUILD? • A lighthouse device. • Read the status of CI pipeline. • Display the CI status of trunk branch: GREEN (passed), YELLOW (running) and RED (failed). Example for Build light indicator

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LET’S DO THIS

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TERMS konanc: Kotlin/Native compiler cinterop: Kotlin/native interoperability – create Kotlin binding for native lib armhf: Raspberry PI 3 B model architecture

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RUN THE APP

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VERIFY

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CROSS- PLATFORM COMPILING

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CROSS- PLATFORM COMPILING

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RUN ON THE PI

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MANIPULATE THE HARDWARE

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WHAT I HAVE LEARNED You need to learn a bit about hardware along the way Not so much tutorials on this topic yet Controlled experiment