Add basic ws2801 support

lights/lights_ws2801.py

@@ -0,0 +1,42 @@
+import board
+import adafruit_ws2801
+
+class WS2801:
+    def __init__(self, numleds, brightness, odata=board.MOSI, oclock=board.SCLK):
+        self.leds = adafruit_ws2801.WS2801(oclock, odata, numleds, brightness=brightness, auto_write=False)
+        self.values = []
+        self.brightness = brightness
+        self.numleds = numleds
+    
+    def set_leds(self, vals):
+        if len(vals) == 1:
+            val = vals[0]
+            vals = []
+            for i in range(0, self.numleds):
+                vals.append(val)
+
+        if len(vals) == self.numleds:
+            for i in range(self.numleds):
+                self.leds[i] = (
+                    int(vals[i][0] * self.brightness),
+                    int(vals[i][1] * self.brightness),
+                    int(vals[i][2] * self.brightness)
+                )
+            self.values = vals
+        else:
+            print("Incorrect vals length")
+            return
+        self.leds.show()
+
+    def set_brightness(self, brightness):
+        if brightness > 1.0:
+            brightness = 1.0
+        elif brightness < 0.0:
+            brightness = 0.0
+
+        self.brightness = brightness
+
+        self.set_leds(self.values)
+
+
+

requirements.txt

@@ -0,0 +1 @@
+adafruit-circuitpython-ws2801==0.10.1