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
Share your setup or code mods in the comments below. Happy parking, and may your spot always be green. 🚗💚 smart pss raspberry pi
while GPIO.input(ECHO) == 0: pulse_start = time.time() while GPIO.input(ECHO) == 1: pulse_end = time.time() GPIO.OUT) # Green LED GPIO.setup(27
import RPi.GPIO as GPIO import time TRIG = 23 ECHO = 24 THRESHOLD = 0.7 # meters (70cm) False) time.sleep(0.2) GPIO.output(TRIG
⚠️ 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:
def get_distance(): GPIO.output(TRIG, False) time.sleep(0.2) GPIO.output(TRIG, True) time.sleep(0.00001) GPIO.output(TRIG, False)