Creation of class for VL6180X in hal.py. Adding support for ESP8266 and ESP32.

Author: tomekmalek

7_distance_and_light_sensor.py

@@ -7,25 +7,9 @@
 import time
 import LiveObjects
 
-import busio
-import adafruit_vl6180x
-
-try:
-    import board
-except NotImplementedError:     # if no I2C device
-    print("No GPIO present.")
-    sys.exit()
-
-# Create I2C bus
-i2c = busio.I2C(board.SCL, board.SDA)
-# Create sensor instance.
-sensor = adafruit_vl6180x.VL6180X(i2c)
-# You can add an offset to distance measurements here (e.g. calibration)
-# Swapping for the following would add a +10 millimeter offset to measurements:
-# sensor = adafruit_vl6180x.VL6180X(i2c, offset=10)
-
 # Create LiveObjects
 lo = LiveObjects.Connection()
+sensor = LiveObjects.SensorVL6180X()
 
 MESSAGE_RATE = 5
 
@@ -35,9 +19,8 @@
 
 while True:
     if (time.time()) >= last + MESSAGE_RATE:
-        # lo.add_to_payload("uptime", int(time.time() - uptime))  # Add value to payload: name - value
-        lo.add_to_payload("distance", sensor.range)
-        lo.add_to_payload("ambient_light", sensor.read_lux(adafruit_vl6180x.ALS_GAIN_1))
+        lo.add_to_payload("distance", sensor.range())
+        lo.add_to_payload("ambient_light", sensor.read_lux(0x06))
         lo.send_data()  # Sending data to cloud
         last = time.time()
         lo.loop() 						# Check for incoming messages and if connection is still active

LiveObjects/hal.py

@@ -231,3 +231,30 @@ def __new__(cls, net_type):
             sn = 'RaspberryPi' if is_raspberrypi() else 'Linux'
         board = eval(sn)(net_type)  # instance of board w/ net type: WiFi, LTE, etc.
         return board
+
+
+class SensorVL6180X:
+    def __new__(cls):
+        try:  # Python@RPi
+            import busio
+            import adafruit_vl6180x
+            import board
+            # Create I2C bus
+            i2c = busio.I2C(board.SCL, board.SDA)
+            # Create sensor instance.
+            return adafruit_vl6180x.VL6180X(i2c)
+            # You can add an offset to distance measurements here (e.g. calibration)
+            # Swapping for the following would add a +10 millimeter offset to measurements:
+            # sensor = adafruit_vl6180x.VL6180X(i2c, offset=10)
+        except ImportError:  # microPython
+            import machine
+            import vl6180x
+            # Create I2C bus @8266
+            i2c = machine.I2C(scl=machine.Pin(5), sda=machine.Pin(4), freq=100000)
+            # Create I2C bus @ESP32
+            # i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21), freq=100000)
+            # Create sensor instance.
+            return vl6180x.Sensor(i2c, address=0x29)
+        except NotImplementedError:  # if no I2C device
+            print("No GPIO present.")
+            sys.exit()