Merge pull request #26 from adafruit/rainbowio

Update examples to use rainbowio

Author: kattni

.pre-commit-config.yaml

@@ -30,5 +30,5 @@ repos:
         name: pylint (examples code)
         description: Run pylint rules on "examples/*.py" files
         entry: /usr/bin/env bash -c
-        args: ['([[ ! -d "examples" ]] || for example in $(find . -path "./examples/*.py"); do pylint --disable=missing-docstring,invalid-name $example; done)']
+        args: ['([[ ! -d "examples" ]] || for example in $(find . -path "./examples/*.py"); do pylint --disable=missing-docstring,invalid-name,consider-using-f-string $example; done)']
         language: system

examples/trellism4_neopixel_simpletest.py

@@ -4,27 +4,15 @@
 """Test your Trellis M4 Express without needing the serial output.
 Press any button and the rest will light up the same color!"""
 import time
+from rainbowio import colorwheel
 import adafruit_trellism4
 
 trellis = adafruit_trellism4.TrellisM4Express()
 
-
-def wheel(pos):
-    if pos < 0 or pos > 255:
-        return 0, 0, 0
-    if pos < 85:
-        return int(255 - pos * 3), int(pos * 3), 0
-    if pos < 170:
-        pos -= 85
-        return 0, int(255 - pos * 3), int(pos * 3)
-    pos -= 170
-    return int(pos * 3), 0, int(255 - (pos * 3))
-
-
 for x in range(trellis.pixels.width):
     for y in range(trellis.pixels.height):
         pixel_index = ((y * 8) + x) * 256 // 32
-        trellis.pixels[x, y] = wheel(pixel_index & 255)
+        trellis.pixels[x, y] = colorwheel(pixel_index & 255)
 
 
 current_press = set()
@@ -35,13 +23,13 @@ def wheel(pos):
             print("Pressed:", press)
             pixel = (press[1] * 8) + press[0]
             pixel_index = pixel * 256 // 32
-            trellis.pixels.fill(wheel(pixel_index & 255))
+            trellis.pixels.fill(colorwheel(pixel_index & 255))
     for release in current_press - pressed:
         if release:
             print("Released:", release)
             for x in range(trellis.pixels.width):
                 for y in range(trellis.pixels.height):
                     pixel_index = ((y * 8) + x) * 256 // 32
-                    trellis.pixels[x, y] = wheel(pixel_index & 255)
+                    trellis.pixels[x, y] = colorwheel(pixel_index & 255)
     time.sleep(0.08)
     current_press = pressed

examples/trellism4_neopixel_toggle.py

@@ -1,23 +1,11 @@
 # SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 # SPDX-License-Identifier: MIT
 
+from rainbowio import colorwheel
 import adafruit_trellism4
 
 trellis = adafruit_trellism4.TrellisM4Express()
 
-
-def wheel(pos):
-    if pos < 0 or pos > 255:
-        return 0, 0, 0
-    if pos < 85:
-        return int(255 - pos * 3), int(pos * 3), 0
-    if pos < 170:
-        pos -= 85
-        return 0, int(255 - pos * 3), int(pos * 3)
-    pos -= 170
-    return int(pos * 3), 0, int(255 - (pos * 3))
-
-
 led_on = []
 
 for x in range(trellis.pixels.width):
@@ -38,7 +26,7 @@ def wheel(pos):
         if not led_on[x][y]:
             print("Turning on:", press)
             pixel_index = (x + (y * 8)) * 256 // 32
-            trellis.pixels[x, y] = wheel(pixel_index & 255)
+            trellis.pixels[x, y] = colorwheel(pixel_index & 255)
             led_on[x][y] = True
 
         else:

examples/trellism4_wavefile_synth/trellism4_wavefile_synth.py

@@ -7,6 +7,7 @@
 It uses Mixer to play up to 7 notes at once.
 Play notes with the rainbow buttons. Change waveform types ith the white buttons in the last column.
 """
+# pylint: disable=consider-using-with,consider-using-dict-items
 import board
 from audiocore import WaveFile
 from audioio import AudioOut