pyb: First cut at implementing "pyb" micropython module emulation for Linux.

pyb/pyb.py

@@ -0,0 +1,21 @@
+class LED:
+
+    def __init__(self, id):
+        self.f = open("/sys/class/leds/%s/brightness" % id, "r+b")
+
+    def on(self):
+        self.f.write(b"255")
+
+    def off(self):
+        self.f.write(b"0")
+
+    def get(self):
+        self.f.seek(0)
+        return int(self.f.read())
+
+    def toggle(self):
+        v = self.get()
+        if v:
+            self.off()
+        else:
+            self.on()