more sewable led content

en/tutorials/sewable_leds.md

@@ -105,4 +105,20 @@ while True:
 ```
 
 An example which connects the accelerometer with multiple RGB LEDs. They start lighting up when the card10 is moved:
+```
+import bhi160
+import gpio
+import ws2812
+
+LED_NUM = 1
+LED_PIN = gpio.WRISTBAND_1
 
+acc = bhi160.BHI160Accelerometer(sample_rate=30)
+
+while True:
+    data = acc.read()
+    if len(data) > 0:
+        color = (abs(int(data[0].x * 64)), abs(int(data[0].y * 64)), abs(int(data[0].z * 64)))
+        #print(data[0], color)
+        ws2812.set_all(LED_PIN, [color] * LED_NUM)
+```