Hardware hacking with PHP via Raspberry Pi

Ever wished you knew Python or C so you can do some electronics projects but couldn't afford the time to pick up the languages? Fret not, if you are familiar with PHP, you can hack hardwares too!

Presented at Singapore PHP User Group Meetup on 12 September 2012.

Code available at https://github.com/uzyn/raspi-gpio-demo.php

Transcript

1. U-Zyn Chua
   chua@uzyn.com
   

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2. I work at
   

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3. What is
   

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4. Why hardware?
   

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5. PHP
   • Ugly language
   • Hated by hackers
   • Most tutorials in Python, Ruby.
   • Arduino mainly in C
   

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6. PHP
   • But we love PHP!
   

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7. PHP
   • But we love PHP!
   • Because it’s like the mother of language, C!
   (excuse)
   

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8. PHP
   Anyway, we’re most proficient with it!
   

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9. Hardware
   is not scary
   

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10. Hardware
    is not scary
    is just I/O
    

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11. Hardware
    is not scary
    is just I/O
    just like file-handling
    /sys/class/gpio
    

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12. Pins
    

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13. GPIO
    is all we care
    (for noobs at least)
    

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14. GPIO
    is all we care
    (for noobs at least)
    + some basic electronics
    

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15. GPIO
    WiringPi
    https://github.com/WiringPi/WiringPi
    C-based
    very simple
    

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16. WiringPi
    gpio mode 1 out
    gpio write 1 1
    gpio write 1 0
    

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17. WiringPi-PHP
    PHP wrapper for WiringPi
    https://github.com/WiringPi/WiringPi-PHP
    Requires compilation (is it ready?)
    

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18. PHP-GPIO
    PHP wrapper for /sys/class/gpio
    https://github.com/pickley/PHP-GPIO
    Simple to setup
    

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19. PHP RasPi GPIO Libs
    • WiringPi-PHP
    • Userland
    • Requires compilation
    • PHP-GPIO
    • Easy to set up
    • root :(
    

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20. Demo time!
    https://github.com/uzyn/raspi-gpio-demo.php
    

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21. PHP
    web language
    tons of frameworks + libraries
    scripts
    easy!
    

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22. PHP + Hardware
    world domination
    

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23. Ideas?
    U-Zyn Chua
    chua@uzyn.com
    twitter.com/uzyn
    

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