Merge pull request #54 from adafruit/i2c-gpio_example

Added i2c-gpio example

examples/bno055_i2c-gpio_simpletest.py

@@ -0,0 +1,35 @@
+"""
+This example demonstrates how to instantiate the
+Adafruit BNO055 Sensor using this library and just
+the I2C bus number.
+This example will only work on a Raspberry Pi
+and does require the i2c-gpio kernel module to be
+installed and enabled. Most Raspberry Pis will
+already have it installed, however most do not
+have it enabled. You will have to manually enable it
+"""
+
+import time
+from adafruit_extended_bus import ExtendedI2C as I2C
+import adafruit_bno055
+
+# To enable i2c-gpio, add the line `dtoverlay=i2c-gpio` to /boot/config.txt
+# Then reboot the pi
+
+# Create library object using our Extended Bus I2C port
+# Use `ls /dev/i2c*` to find out what i2c devices are connected
+i2c = I2C(1)  # Device is /dev/i2c-1
+sensor = adafruit_bno055.BNO055_I2C(i2c)
+
+while True:
+    print("Temperature: {} degrees C".format(sensor.temperature))
+    print("Accelerometer (m/s^2): {}".format(sensor.acceleration))
+    print("Magnetometer (microteslas): {}".format(sensor.magnetic))
+    print("Gyroscope (rad/sec): {}".format(sensor.gyro))
+    print("Euler angle: {}".format(sensor.euler))
+    print("Quaternion: {}".format(sensor.quaternion))
+    print("Linear acceleration (m/s^2): {}".format(sensor.linear_acceleration))
+    print("Gravity (m/s^2): {}".format(sensor.gravity))
+    print()
+
+    time.sleep(1)