Yes I calibrated it. You hold the set-up button down for 2 secs when switching on, orange LED lights up, red led flashes & there's a continuous beep, You then press set-up button once - orange light flashes once & there's 1 beep to set neutral position, put throttle to full position press set-up button orange light flashes twice & 2 beeps, put throttle to full reverse press set-up button orange led flashes 3 times & 3 beeps, ESC then automatically switches off. Switch ESC on, red & orange leds light up to signify normal sensored operation,moving throttle has no effect on motor.