From 8fd84831216315ffbf83f4f3da84361046bbec82 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ebbe=20Ba=C3=9F?= <ebbe@ping-mee.de>
Date: Sat, 9 Jul 2022 23:55:42 +0200
Subject: [PATCH] next test
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Signed-off-by: Ebbe Baß <ebbe@ping-mee.de>
---
 test.py | 54 ++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 44 insertions(+), 10 deletions(-)

diff --git a/test.py b/test.py
index 846eb13..1defddc 100644
--- a/test.py
+++ b/test.py
@@ -1,15 +1,49 @@
-import smbus
+import RPi.GPIO as GPIO
 import time
 
-address = 0x57
-sensor = smbus.SMBus(1)
+GPIO.setmode(GPIO.BCM)
 
-while True:
-    sensor.write_byte(address, 0x01)
-    
-    time.sleep(0.2)
+GPIO_TRIGGER = 18
+GPIO_ECHO = 24
 
-    bytes = sensor.read_i2c_block_data(address, 0, 3)
-    distance = ((bytes[0] << 16) + (bytes[1] << 8) + bytes[2]) / 10000
+GPIO.setup(GPIO_TRIGGER, GPIO.OUT)
+GPIO.setup(GPIO_ECHO, GPIO.IN)
 
-    print(distance)
\ No newline at end of file
+def distanz():
+    # setze Trigger auf HIGH
+    GPIO.output(GPIO_TRIGGER, True)
+ 
+    # setze Trigger nach 0.01ms aus LOW
+    time.sleep(0.00001)
+    GPIO.output(GPIO_TRIGGER, False)
+ 
+    StartZeit = time.time()
+    StopZeit = time.time()
+ 
+    # speichere Startzeit
+    while GPIO.input(GPIO_ECHO) == 0:
+        StartZeit = time.time()
+ 
+    # speichere Ankunftszeit
+    while GPIO.input(GPIO_ECHO) == 1:
+        StopZeit = time.time()
+ 
+    # Zeit Differenz zwischen Start und Ankunft
+    TimeElapsed = StopZeit - StartZeit
+    # mit der Schallgeschwindigkeit (34300 cm/s) multiplizieren
+    # und durch 2 teilen, da hin und zurueck
+    distanz = (TimeElapsed * 34300) / 2
+ 
+    return distanz
+ 
+if __name__ == '__main__':
+    try:
+        while True:
+            abstand = distanz()
+            print ("Gemessene Entfernung = %.1f cm" % abstand)
+            time.sleep(1)
+ 
+        # Beim Abbruch durch STRG+C resetten
+    except KeyboardInterrupt:
+        print("Messung vom User gestoppt")
+        GPIO.cleanup()
\ No newline at end of file