The HTU21D-F is an I²C digital temperature and humidity sensor with high accuracy and an operating range that is optimised from 5 to 95% RH and from -30°C to +90°C. The breakout board includes a PTFE filter to keep the sensor clean, a 3.3V regulator and I⊃2C level shifting circuitry. This allows the board to be used safely with any kind of microcontroller with 3.3 to 5V power or logic.

• Fully assembled
• Includes a small piece of header
• Very easy to use
• Arduino compatible library
• Dimensions 18 x 16 x 2mm

Learning tips and tutorials can be seen here.

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

The BN0055 is a nine degrees of freedom (9-DOF) sensor that fuses and processes the plethora of data associated with a 9-DOF sensor. The board can output the vectors of absolute orientation (Quaternion and Euler vector), angular velocity, acceleration, magnetic field strength, linear acceleration, gravity, and temperature. The data can be read over an I²C interface.

• Sensor mounted on its own breakout
• 3.3V Onboard regulator
• Logic level shifting for Reset and I²C pins
• External 32.768kHz crystal
• Fully assembled and tested

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.