Smart Pss Raspberry Pi <2025>

import RPi.GPIO as GPIO import time TRIG = 23 ECHO = 24 THRESHOLD = 0.7 # meters (70cm)

⚠️ 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:

while GPIO.input(ECHO) == 0: pulse_start = time.time() while GPIO.input(ECHO) == 1: pulse_end = time.time() smart pss raspberry pi

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?

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 import RPi

Share your setup or code mods in the comments below. Happy parking, and may your spot always be green. 🚗💚

def get_distance(): GPIO.output(TRIG, False) time.sleep(0.2) GPIO.output(TRIG, True) time.sleep(0.00001) GPIO.output(TRIG, False) What if your car could tell you—before you

Enter the . Powered by a $35 Raspberry Pi, this DIY project detects vehicle presence in real-time and can alert you via LED, LCD, or even a smartphone notification.