Physics — Timing: PWM Duty Cycles
25%, 50% and 75% pulse-width modulation.
Make it your own.
{
"signal": [
{"name":"25%", "wave":"10..10..10.."},
{"name":"50%", "wave":"1.0.1.0.1.0."},
{"name":"75%", "wave":"1..01..01..0"}
],
"head": {"text":"Pulse-width modulation"}
}