TM1637 and HC-SR04 power by micro:bit

let distance = 0
let TM16372: TM1637.TM1637LEDs = null
let Cnt = 0
Cnt = 0
TM16372 = TM1637.create(
DigitalPin.P13,
DigitalPin.P14,
7,
4
)
basic.forever(() => {
    pins.digitalWritePin(DigitalPin.P16, 0)
    control.waitMicros(2)
    pins.digitalWritePin(DigitalPin.P16, 1)
    control.waitMicros(10)
    pins.digitalWritePin(DigitalPin.P16, 0)
    distance = pins.pulseIn(DigitalPin.P15, PulseValue.High)
    TM16372.showNumber(distance / 38)
    basic.pause(300)
})