Is it a square wave you want or Is this testing?
You could use the pwm output and not use any loop code at all.
@Wilberforce started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Is it a square wave you want or Is this testing?
You could use the pwm output and not use any loop code at all.