Merge pull request #1399 from jedgarpark/nunchuck-ring

first commit nunchuck ring code

Author: ladyada

Nunchuck_Ring/nunchuck_ring.py

@@ -0,0 +1,51 @@
+import time
+import board
+import adafruit_nunchuk
+import neopixel
+import simpleio
+
+nc = adafruit_nunchuk.Nunchuk(board.I2C())
+#  create neopixel object
+NEOPIN = board.D6
+NEOLENGTH = 60
+NEOORDER = neopixel.GRBW  # set to GRB for 'regular' RGB NeoPixels
+pixels = neopixel.NeoPixel(
+    NEOPIN, NEOLENGTH, brightness=0.1, auto_write=False, pixel_order=NEOORDER
+)
+
+RED = (220, 0, 0)
+PURPLE = (80, 0, 160)
+PINK = (100, 0, 80)
+GREEN = (0, 180, 0)
+CYAN = (0, 80, 100)
+BLUE = (0, 0, 255)
+BLACK = (0, 0, 0)
+
+COLORS = [RED, PURPLE, PINK, GREEN, CYAN, BLUE]
+pix = 0  # selected pixel
+color_pick = 0  # current color index
+pixels.fill(BLACK)
+pixels.show()
+
+while True:
+    x, y = nc.joystick  # get joystick values
+    ax, ay, az = nc.acceleration  # get accelerometer values
+
+    tilt_x = simpleio.map_range(ax, 300.0, 800.0, 0.0, 1.0)  # remap tilt to brightness
+    # remap y to current pixel
+    pix = int(
+        simpleio.map_range(y, 0, 255, 0, NEOLENGTH - 1)
+    )
+
+    if nc.button_C:  # hold C button to use tilt for brightness
+        pixels.brightness = tilt_x
+
+    if nc.button_Z:
+        color_pick = (color_pick + 1) % 4  # cycle through colors
+        time.sleep(0.02)  # debounce
+
+    pixels.fill(BLACK)  # turn off pixels
+    for i in range(0, pix + 1):  # light up all pixels up to the current one
+        pixels[i] = COLORS[color_pick]
+
+    pixels.show()