R2D2 by Sphero Playground - Lights Lesson

Problem solved:

The Lights exercise not only requires you to do things in a specific order, it also requires LogicDisplayLED and HoloProjecrtorLED to be switched on and off at the same time with a wait in between.

This is the working code:

func startMessage() {

setFrontPSILed(color: FrontPSIColor.blue)

setBackPSILed(color: BackPSIColor.yellow)

play(sound: R2D2Sound.talking)

for index in 1 ... 5 {

flashLights()

}

}

func flashLights() {

setLogicDisplayLeds(brightness: 255)

setHoloProjectorLed(brightness: 255)

wait(for: 1)

setHoloProjectorLed(brightness: 0)

setLogicDisplayLeds(brightness: 0)

wait(for: 1)

}

And a version that’s a little bit more sophisticated:

let off=0

let on=255

let iterations=51

func startMessage() {

setFrontPSILed(color: FrontPSIColor.blue)

setBackPSILed(color: BackPSIColor.yellow)

play(sound: R2D2Sound.talking)

for index in 1 ... iterations {

flashLights(index, iterations)

}

}

func flashLights(_ index: Int,_ iterations: Int) {

let delay=0.01

setLogicDisplayLeds(brightness: (index*on/iterations))

setHoloProjectorLed(brightness:(index*on/iterations))

wait(for: delay)

setHoloProjectorLed(brightness:off)

setLogicDisplayLeds(brightness:off)

wait(for: delay)

}

I started a command reference for the Sphero R2D2 Swift Playground.

In case you are interested it can be found at: https://github.com/BitsDream/R2D2-Playground

Hi, sorry to resurrect a dead thread.

I'm getting a Sphero R2-D2 and I've updated to the latest version of Swift Playgrounds, but the R2-D2 by Sphero Playground is no longer there.

I contacted Sphero and this is what they said:

The R2D2 playground is no longer supported after the recent Swift upgrade.

At this time, we're choosing not to support an updated version.

If you still have a copy and willing to share it, I would be most grateful. Swapping the chapters with the latest Sphero template as suggested by AaronZ in another thread should work.

Any help is most appreciated.

Thank you.