bycicle neo-lights

main.ts

// road bike neopixel animation
const strip = neopixel.create(DigitalPin.P0, 60, NeoPixelMode.RGB)
const back = strip.range(0, 10)
const mid = strip.range(10, 40)
const head = strip.range(50, 10)

// global variable to keep track of the animation
let running = false
function run() {
    // only start once
    if (running) {
        return;
    }
    // setup strip
    running = true
    clear()
    back.setPixelColor(0, NeoPixelColors.Red)
    head.setPixelColor(0, NeoPixelColors.White)
    mid.range(0, 20).showRainbow()
    control.inBackground(() => {
        while (running) {
            back.rotate()
            mid.rotate()
            head.rotate()
            strip.show()
            led.toggle(Math.random(5), Math.random(5))
            basic.pause(10)
        }
        // turn off all to save power
        clear()
    })
}

function clear() {
    strip.clear()
    strip.show()
    basic.clearScreen()
}

// A --> start running
input.onButtonPressed(Button.A, run)

// B --> stop
input.onButtonPressed(Button.B, () => {
    running = false
})
// always start
run()