Reference

Timing

Board timing words for sleeping and reading monotonic uptime.

Timing words are simple on purpose: sleep for a while, or ask how long the board has been awake.

Words

ms: (timing) (durationMs) -> nil

Blocks for the requested number of milliseconds.

ms: 75

Use it for simple sketches, not hard real-time scheduling. While ms is running, no other Frothy code in that evaluation proceeds.

millis: (timing) () -> Int

Returns wrapped monotonic uptime in milliseconds.

millis:

Use millis for elapsed-time checks when a loop should keep control:

blink.last is 0

to blink.poll [
  when ((millis:) - blink.last) > 250 [
    led.toggle:;
    set blink.last to millis:
  ]
]

Timing often appears alongside random and math helpers in small board sketches. This page is the low-level timing contract.