started by modify https://github.com/adafruit/Adafruit_Blinka/blob/master/src/adafruit_blinka/microcontroller/tegra/t210/pin.py
from adafruit_blinka.microcontroller.tegra.t210 import pin
from adafruit_blinka.microcontroller.tegra.t210 import pin
-SDA = pin.SDA_1
-SCL = pin.SCL_1
-SDA_1 = pin.SDA
-SCL_1 = pin.SCL
+# before #
+#SDA = pin.SDA_1
+#SCL = pin.SCL_1
+#SDA_1 = pin.SDA
+#SCL_1 = pin.SCL
+
+# after #
+SDA = pin.SDA
+SCL = pin.SCL
+SDA_1 = pin.SDA_1
+SCL_1 = pin.SCL_1
D4 = pin.BB00
D5 = pin.S05
D4 = pin.BB00
D5 = pin.S05