Cleanup and make functions to just read values instead of doing things

forever and ever

README.org

@@ -27,9 +27,11 @@ ampy --port /dev/ttyUSB0 put hcsr04.py
 
 *** Set up distance measuring
 #+begin_src python
-import main
+import main, time
 
-main.distance()
+while True:
+    print(main.getDistance())
+    time.sleep(1)
 #+end_src
 
 ** Movement sensor
@@ -42,9 +44,11 @@ main.distance()
 
 *** Set up movement sensor
 #+begin_src python
-import main
+import main, time
 
-main.movement()
+while True:
+    print(main.getMovement())
+    time.sleep(0.5)
 #+end_src
 
 ** Relay

code/main.py

@@ -4,28 +4,16 @@ import time
 import machine
 
 
-def blink():
-    pin = machine.Pin(2, machine.Pin.OUT)
-
-    while True:
-        pin.value(not pin.value())
-        time.sleep_ms(500)
-
-
-def distance():
+def getDistance():
     sensor = HCSR04(trigger_pin=pins.D2, echo_pin=pins.D3)
 
-    while True:
-        print(sensor.distance_cm())
-        time.sleep(1)
+    return sensor.distance_cm()
 
 
-def movement():
+def getMovement():
     sensor = machine.Pin(pins.D2, mode=machine.Pin.IN, pull=None)
 
-    while True:
-        print(sensor.value())
-        time.sleep(0.5)
+    return sensor.value()
 
 
 def resetRelay():