This is a rough and ready test using a MMA7361 3 Axis Accelerometer with a Arduino to read and display in the serial window the values.
Press Crtl+Shift+M to display values in the serial display when running the sketch.
Notes this has a SL, Sleep pin that needs to be pulled High, the sleep basically turns off the MMA7361 3 Axis Accelerometer to reduce power use. This may be important if battery's are used to reduce power used.
The sensor requires a very low amount of power and has a g-select input which switches the accelerometer between ±1.5g and ±6g measurement ranges. Other features include a sleep mode, signal conditioning, a 1-pole low pass filter, temperature compensation, self test, and 0g-detect which detects linear freefall. Zero-g offset and sensitivity are factory set and require no external devices.
It's specifications are: • Supports 2.2V ~ 3.6V or 5V voltage input. • Two selectable measuring ranges (±1.5g, ±6g) • Breadboard friendly - 0.1" pitch header • Low current consumption: 400 µA • Sleep mode: 3 µA • Low voltage operation: 2.2 V - 3.6 V • High sensitivity (800 mV/g at 1.5g) • Fast turn on time (0.5 ms enable response time) • Self test for freefall detect diagnosis • 0g-Detect for freefall protection • Signal conditioning with low pass filter • Robust design, high shocks survivability
Arduino Leonardo Compatible
This Indiegogo crowd funding campaign started on Jul 12 and closed on August 10, 2013 (11:59pm PT).
Be the first to comment