Smart Pss: Raspberry Pi [upd]

⚠️ The HC-SR04 ECHO pin outputs 5V. Use a voltage divider (two resistors) to step it down to 3.3V, or use a logic level converter to avoid frying your Pi. Step 2: Write the Python Script Here’s a simple, production-ready script:

Tired of playing the "is there a spot?" guessing game every time you pull into your driveway or garage? What if your car could tell you—before you even turn the corner—exactly which spot is free? smart pss raspberry pi

GPIO.setmode(GPIO.BCM) GPIO.setup(TRIG, GPIO.OUT) GPIO.setup(ECHO, GPIO.IN) GPIO.setup(17, GPIO.OUT) # Green LED GPIO.setup(27, GPIO.OUT) # Red LED ⚠️ The HC-SR04 ECHO pin outputs 5V

import RPi.GPIO as GPIO import time TRIG = 23 ECHO = 24 THRESHOLD = 0.7 # meters (70cm) What if your car could tell you—before you

while GPIO.input(ECHO) == 0: pulse_start = time.time() while GPIO.input(ECHO) == 1: pulse_end = time.time()

def get_distance(): GPIO.output(TRIG, False) time.sleep(0.2) GPIO.output(TRIG, True) time.sleep(0.00001) GPIO.output(TRIG, False)