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You just found the perfect I2C sensor
high-speed embedded memories and an extensive range of enhanced peripherals and I/Os
with duplex communication speeds of up to 424 kb/s
Dynamic range is determined by the resistors (typically in the range of 10K to 100K) and power supply values
Resolution: 640×480 VGA
BMP180 Barometric Pressure Sensor altimeter You just found the perfectMeasuring the absolute pressure of the environment using a digital barometer such as this has some interesting applications. By converting the pressure measured into altitude, you have a reliable sensor for determining the height of your robot, plane or projectile! Using a sensor as capable as the BMP180 you can achieve accuracy of 1m, with noise of only 17cm in ultra high resolution noise. The device will operate at only 0. 3uA meaning low current