Backup vom Rp2040Zero 16.05.2026 hinzugefügt

main_backup.py

@@ -0,0 +1,46 @@
+import time
+from machine import Pin, I2C, time_pulse_us
+from lcd1602 import LCD1602
+from vl53l0x import VL53L0X # muss als vl53l0x.py auf dem Board liegen
+
+# --- LCD Setup (RS=6, E=7, D4=8, D5=9, D6=10, D7=11) ---
+lcd = LCD1602(6, 7, 8, 9, 10, 11)
+
+# --- HC-SR04 Setup ---
+trig = Pin(3, Pin.OUT)
+echo = Pin(2, Pin.IN)
+
+def read_hcsr04():
+    trig.low()
+    time.sleep_us(2)
+    trig.high()
+    time.sleep_us(10)
+    trig.low()
+    try:
+        duration = time_pulse_us(echo, 1, 30000)  # Warte max. 30ms
+        distance = (duration / 2) / 29.1  # cm
+    except OSError:
+        distance = -1  # kein Messwert
+    return distance
+
+# --- VL53L0X Setup ---
+i2c = I2C(0, sda=Pin(4), scl=Pin(5), freq=400000)
+sensor = VL53L0X(i2c)
+
+# --- Hauptloop ---
+while True:
+    dist_us = read_hcsr04()
+    dist_tof  = sensor.range/10  # Adafruit-Treiber liefert .range in mm modifiziert zu cm
+
+    lcd.clear()
+    lcd.move_to(0, 0)
+    if dist_us >= 0:
+        lcd.putstr("US: {:.1f} cm".format(dist_us))
+    else:
+        lcd.putstr("US: ---")
+
+    lcd.move_to(0, 1)
+    lcd.putstr("ToF: {} cm".format(dist_tof))
+
+    time.sleep(0.5)
+