-SDA = Pin('GEN1_I2C_SDA')
-SCL = Pin('GEN1_I2C_SCL')
-SDA_1 = Pin('GEN2_I2C_SDA')
-SCL_1 = Pin('GEN2_I2C_SCL')
+# before #
+#SDA = Pin('GEN1_I2C_SDA')
+#SCL = Pin('GEN1_I2C_SCL')
+#SDA_1 = Pin('GEN2_I2C_SDA')
+#SCL_1 = Pin('GEN2_I2C_SCL')
+
+# after #
+SDA = Pin('GEN2_I2C_SDA')
+SCL = Pin('GEN2_I2C_SCL')
+SDA_1 = Pin('GEN1_I2C_SDA')
+SCL_1 = Pin('GEN1_I2C_SCL')