Fix buttons on M5Stack

Author: deshipu

m5stack/ugame.py

@@ -8,11 +8,13 @@
 
 
 K_X = 0x20
-K_DOWN = 0x01
-K_LEFT = 0x08
-K_RIGHT = 0x04
-K_UP = 0x02
+K_DOWN = 0x02
+K_LEFT = 0x04
+K_RIGHT = 0x08
+K_UP = 0x01
 K_O = 0x10
+K_SELECT = 0x40
+K_START = 0x80
 
 
 class Audio:
@@ -30,12 +32,12 @@ def mute(self, value=True):
 
 
 class Buttons:
- def __init__(self, i2c, address=0x10):
+ def __init__(self, i2c, address=0x08):
  self._i2c = i2c
  self._address = address
 
  def get_pressed(self):
- return self._i2c.readfrom(self._address, 1)[0]
+ return self._i2c.readfrom(self._address, 1)[0] ^ 0xff
 
 
 spi = SPI(2, baudrate=40000000, sck=Pin(18), mosi=Pin(23))