Adding code for BLE gesture mouse guide

Adding code for BLE Gesture Mouse Learn Guide. Uses the Feather Sense to act as a BLE mouse. Accelerometer readings act as x and y movements, onboard button is left click and proximity sensor enables scrolling combined with tilting up/down

BLE_Gesture_Mouse/code.py

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+import time
+import board
+import digitalio
+import adafruit_lsm6ds.lsm6ds33
+import adafruit_apds9960.apds9960
+from adafruit_hid.mouse import Mouse
+
+import adafruit_ble
+from adafruit_ble.advertising import Advertisement
+from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
+from adafruit_ble.services.standard.hid import HIDService
+from adafruit_ble.services.standard.device_info import DeviceInfoService
+
+#  setup I2C
+i2c = board.I2C()
+
+#  setup accelerometer
+lsm6ds33 = adafruit_lsm6ds.lsm6ds33.LSM6DS33(i2c)
+#  setup proximity sensor
+apds9960 = adafruit_apds9960.apds9960.APDS9960(i2c)
+
+#  enable proximity sensor
+apds9960.enable_proximity = True
+
+#  x and y axis setup
+x_axis = 0
+y_axis = 0
+
+#  setup for onboard button
+click = digitalio.DigitalInOut(board.SWITCH)
+click.direction = digitalio.Direction.INPUT
+click.pull = digitalio.Pull.UP
+
+#  rounding algorhythm used for mouse movement
+#  as used in the HID mouse CircuitPython example
+mouse_min = -9
+mouse_max = 9
+step = (mouse_max - mouse_min) / 20.0
+
+def steps(axis):
+    return round((axis - mouse_min) / step)
+
+#  time.monotonic() variable
+clock = 0
+
+#  variable for distance for proximity scrolling
+distance = 245
+
+#  setup for HID and BLE
+hid = HIDService()
+
+device_info = DeviceInfoService(software_revision=adafruit_ble.__version__,
+                                manufacturer="Adafruit Industries")
+advertisement = ProvideServicesAdvertisement(hid)
+advertisement.appearance = 961
+scan_response = Advertisement()
+scan_response.complete_name = "CircuitPython HID"
+
+ble = adafruit_ble.BLERadio()
+
+if not ble.connected:
+    print("advertising")
+    ble.start_advertising(advertisement, scan_response)
+else:
+    print("already connected")
+    print(ble.connections)
+
+#  setup for mouse
+mouse = Mouse(hid.devices)
+
+while True:
+    while not ble.connected:
+        pass
+    while ble.connected:
+        #  sets x and y values for accelerometer x and y values
+        x = lsm6ds33.acceleration[1]
+        y = lsm6ds33.acceleration[0]
+
+        #  if onboard button is pressed, sends left mouse click
+        if click.value is False:
+            mouse.click(Mouse.LEFT_BUTTON)
+            time.sleep(0.2)
+        #  debugging print for x and y values
+        #  time.monotonic() is used so that the
+        #  code is not delayed with time.sleep
+        if (clock + 2) < time.monotonic():
+            print("x", steps(x))
+            print("y", steps(y))
+            clock = time.monotonic()
+        #  mouse movement left and right
+        if steps(x) > 11.0:
+            mouse.move(x=1)
+        if steps(x) < 9.0:
+            mouse.move(x=-1)
+
+        if steps(x) > 19.0:
+            mouse.move(x=8)
+        if steps(x) < 1.0:
+            mouse.move(x=-8)
+        #  mouse movement up and down
+        #  and mouse scrolling using
+        #  proximity sensor
+        if steps(y) > 11.0:
+            if apds9960.proximity > distance:
+                #  scroll down
+                mouse.move(wheel=1)
+                time.sleep(0.1)
+            else:
+                #  move down
+                mouse.move(y=-1)
+        if steps(y) < 9.0:
+            if apds9960.proximity > distance:
+                #  scroll up
+                mouse.move(wheel=-1)
+                time.sleep(0.1)
+            else:
+                #  move up
+                mouse.move(y=1)
+
+        if steps(y) > 15.0:
+            if apds9960.proximity > distance:
+                #  scroll down
+                mouse.move(wheel=3)
+            else:
+                #  move down
+                mouse.move(y=-8)
+        if steps(y) < 1.0:
+            if apds9960.proximity > distance:
+                #  scroll up
+                mouse.move(wheel=-3)
+            else:
+            #  move up
+                mouse.move(y=8)
+        #print(apds9960.proximity)
+    ble.start_advertising(advertisement)