pins: change default I2C state to 1

busfahrer.py

@@ -40,7 +40,7 @@ class I2C:
 	def setPin(self, pin, state):
 		'''Set the gien pin: An (address, bit) pair'''
 		with self._lock:
-			byte = self._bytes.get(pin.addr, 0x00)
+			byte = self._bytes.get(pin.addr, 0xFF) # default: all-1. That's also the HW default state, inherently.
 			# set the bit
 			if state:
 				byte |= (1 << pin.bit)