This breakout board makes it easy to use the tiny MMA8452Q accelerometer in your project. The MMA8452Q is a smart low-power, three-axis, capacitive micro-machined accelerometer with 12 bits of resolution. This accelerometer is packed with embedded functions and flexible user-programmable options, configurable to two interrupt pins. Embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data.
The MMA8452Q has user-selectable full scales of ±2g/±4g/±8g with high-pass filtered data as well as non-filtered data available in real time. The device can be configured to generate inertial wake-up interrupt signals from any combination of the configurable embedded functions, allowing the MMA8452Q to monitor events and remain in a low-power mode during periods of inactivity.
This board breaks out the ground, power, I2C and two external interrupt pins. Note: This sensor has a maximum power rating of 3.6V. You'll need a level shifter if you want to use it on a 5V system (such as a standard Arduino). The BOB-12009 is a good choice.
There is a solder jumper on the back of the board that will allow you to change the I2C address from 0x1D to 0x1C (useful if you're using two of these accelerometers, for example).
MMA8452Q Accelerometer Board Features
- 1.95V to 3.6V supply voltage
- 1.6V to 3.6V interface voltage
- ±2g/±4g/±8g dynamically selectable full scale
- Output Data Rates (ODR) from 1.56 Hz to 800 Hz
- 12-bit and 8-bit digital output
- I2C digital output interface (operates to 2.25 MHz with 4.7 kΩ pullup)
- Two programmable interrupt pins for six interrupt sources
- Three embedded channels of motion detection
- Orientation (Portrait/Landscape) detection with set hysteresis
- High-Pass Filter Data available real time
- Current Consumption: 6 µA to 165 µA
MMA8452Q Accelerometer Board Resources