from machine import Pin
import time
//Define pins
pir = Pin(16, Pin.IN)    // PIR sensor connected to GP15
led = Pin(17, Pin.OUT)   //LED connected to GP14

print("Raspberry Pi Pico Response Time Test Started...")

while True:
    if pir.value() == 1:                     // If motion detected
        start = time.ticks_us()              // Record start time (microseconds)
        led.value(1)                         // Turn ON LED
        response = time.ticks_diff(time.ticks_us(), start)
        print("Pico Response Time:", response, "us")
        time.sleep(0.5)
    else:
        led.value(0)                         // Turn OFF LED
        time.sleep(0.5)