Adafruit Triple-Axis Accelerometer - ±2/4/8g @ 14-bit - MMA8451

The MMA8451 Triple-Axis Accelerometer with a 14-bit ADC is a high-precision, affordable sensor perfect for detecting motion, tilt, and orientation in your projects. With a wide usage range from ±2g to ±8g, it's an excellent choice for both beginners and experienced makers using microcontrollers like Arduino.

This miniature accelerometer from Freescale (now part of NXP) is designed for applications in smartphones, tablets, and wearables but is just as effective in your own projects. As part of the MMA8451/MMA8452/MMA8453 family, the MMA8451 stands out for its precision, featuring a built-in 14-bit ADC for accurate measurements. It also includes tilt and orientation detection, allowing you to determine if your project is in landscape or portrait mode, or if it is tilted forward or back.

Key Features:

• Wide range: Detects accelerations from ±2g to ±8g
• 14-bit ADC for high precision
• Built-in tilt/orientation detection to sense landscape/portrait mode and tilt direction
• I2C communication for easy integration with other sensors on the same bus
• Address selection pin for sharing the I2C bus with multiple accelerometers
• Requires repeated-start I2C support (check compatibility with your microcontroller)

To make it easy to use, this accelerometer comes on a breakout board with a low-dropout 3.3V regulator and level shifting circuitry, ensuring it works safely with both 3V and 5V systems. The board is fully assembled and tested, with an 8-pin 0.1" standard header for easy breadboard or perfboard use. Additionally, it includes two 2.5mm mounting holes for easy attachment.

This is an ideal sensor for detecting motion or orientation in your projects, offering great accuracy and versatility!