ements pulses via ISR
* - Servo FS90R on D4 with attach/detach to avoid jitter
* - NeoPixel 50x on D... ISRs (very small) --------------
void ICACHE_RAM_ATTR hallISR() {
unsigned long now = micros();
i... ;
lastPulseTimeMs = millis();
}
void ICACHE_RAM_ATTR limitISR() {
// just mark raw trigger; do deb... Needed() {
if (!servoAttached) {
servoMotor.attach(PIN_SERVO, 1000, 2000);
servoAttached = t
