let i = 1
let f = 0.5
let plus = i + f
let minus = i - f


for (let i = 0; i < 3; ++i) {
    loops.forever(() => {
        let r = Math.randomRange(0, 100)
        serial.writeValue("R", r)
        loops.pause(1000)
    })
    loops.pause(300)
}