SwiftではじめるRaspberry Pi

Transcript

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2. ࠓ೔͸ͳ͢͜ͱ
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5. 3BTCJBO
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6. ͙͢TTIͰ͖Δ
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7. 4XJGU
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8. ४උສ୺ʂ
   

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9. ·ͣ͸-νΧʂ
   

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10. 4XJGUZ(1*0
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11. (1*0
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12. -νΧ1BDLBHFKTPO
    import PackageDescription
    let package = Package(
    name: "led",
    dependencies: [
    .Package(url: "https://github.com/uraimo/
    SwiftyGPIO.git", majorVersion: 1),
    ]
    )
    

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13. -νΧNBJOTXJGU
    import SwiftyGPIO
    import Glibc
    let gpios = SwiftyGPIO.GPIOs(for:.RaspberryPi3)
    let gp = gpios[.P25]!
    gp.direction = .OUT
    gp.value = 1
    repeat {
    gp.value = (gp.value == 0) ? 1 : 0
    usleep(500 * 1000)
    } while (true)
    

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14. -νΧ ?P?
    
    

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15. 5PHHMF4XJUDI
    w εΠονʹΑΓ0/0''͕ೖΕସΘΔ
    w ԡͨ͢ͼʹ-&%͕఺͍ͨΓফ͑ͨΓ
    

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16. 5PHHMF4XJUDI
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17. let gpios = SwiftyGPIO.GPIOs(for: .RaspberryPi3)
    let gpo = gpios[.P25]!
    gpo.direction = .OUT
    gpo.value = 0
    let gpi = gpios[.P24]!
    gpi.direction = .IN
    gpi.pull = .down
    var ledState = false
    gpi.onRaising({(gpio) -> Void in
    ledState = !ledState
    if ledState {
    gpo.value = 1
    } else {
    gpo.value = 0
    }
    })
    

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19. TXJUDICPVODF
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20. 4PGUXBSFEFCPVODJOH
    w ࠷ॳͷΠϕϯτݕ஌ޙҰఆ࣌ؒ͸ಉ͡ΠϕϯτΛແࢹ
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    0/
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21. CPVODFUJNF
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    # add rising edge detection on a channel, ignoring further
    edges for 200ms for switch bounce handling
    GPIO.add_event_detect(channel, GPIO.RISING,
    callback=my_callback, bouncetime=200)
    class gpiozero.Button(pin, *, pull_up=True,
    bounce_time=None, hold_time=1, hold_repeat=False,
    pin_factory=None)
    

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22. 4XJGUZ(1*0
    w EFCPVDFػೳͳ͠
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23. %J⒎
    public class GPIO {
    + public var bounceTime: TimeInterval?
    - var intFuncFalling: ((GPIO) -> Void)?
    - var intFuncRaising: ((GPIO) -> Void)?
    - var intFuncChange: ((GPIO) -> Void)?
    + var intFalling: (func: ((GPIO) -> Void), lastCall: Date?)?
    + var intRaising: (func: ((GPIO) -> Void), lastCall: Date?)?
    + var intChange: (func: ((GPIO) -> Void), lastCall: Date?)?
    public func onRaising(_ closure: @escaping (GPIO) -> Void) {
    - intFuncRaising = closure
    + intRaising = (func: closure, lastCall: nil)
    if intThread == nil {
    intThread = makeInterruptThread()
    listening = true
    

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24. func interrupt(type: inout
    (func: ((GPIO) -> Void), lastCall: Date?)?) {
    guard let itype = type else {
    return
    }
    if let interval = self.bounceTime,
    let lastCall = itype.lastCall,
    Date().timeIntervalSince(lastCall) < interval {
    return
    }
    itype.func(self)
    type?.lastCall = Date()
    }
    

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25. while self.listening {
    let ready = poll(&pfd, 1, -1)
    if ready > -1 {
    …
    switch res {
    case “0":
    - self.intFuncFalling?(self)
    + self.interrupt(type: &(self.intFalling))
    case “1":
    - self.intFuncRaising?(self)
    + self.interrupt(type: &(self.intRaising))
    default:
    break
    }
    - self.intFuncChange?(self)
    + self.interrupt(type: &(self.intChange))
    }
    }
    

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28. υΩυΩɻɻɻ
    

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29. ҰॠͰϚʔδ͞Εͨ
    

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30. ·ͱΊ
    w 3BTQCFSSZ1JͰ4XJGU͸௒؆୯ʹ࢝ΊΒΕΔʂ
    w 1VMM3FRVFTU͸ා͘ͳ͍ʂ
    w ͋͞͸͡ΊΑ͏ʂ
    

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31. 4XJGUͰ3BTQCFSSZ1JΛ੝Γ্͛·͠ΐ͏ʂ
    

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32. ͋Γ͕ͱ͏͍͟͝·ͨ͠
    

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