Memsic 2125 Dual-Axis Accelerometer

Memsic 2125 Dual-axis Accelerometer

The Memsic 2125 is a low cost, dual-axis thermal accelerometer capable of measuring tilt, acceleration, rotation, and vibration with a range of ±3 g. For integration into existing applications, the Memsic 2125 is electrically compatible with other popular accelerometers.

Memsic provides the 2125 in a surface-mount format. Parallax mounts the circuit on a through-hole providing all I/O connections so it can easily be inserted on a breadboard or through-hole prototype area. Click over to the KickStart Guide to see how to use the accelerometer, complete with wiring diagrams and sample code for the BASIC Stamp, Propeller, and Arduino.

Features

• Measures ±3 g on each axis
• Simple pulse output of g-force for each axis
• Convenient 6-pin 0.1" spacing DIP module
• Analog output for temperature (Tout pin)
• Low current at 3.3 or 5 V operation: less than 4 mA at 5 VDC

Applications

• Dual-axis tilt sensing for autonomous robotics applications
• Single-axis rotational position sensing
• Movement/Lack-of-movement sensing for alarm systems
• R/C hobby projects such as autopilots

Specifications

• Power requirements: +3.3 to +5 VDC
• Communication: TTL/CMOS compatible 100 Hz PWM output signal with duty cycle proportional to acceleration
• Dimensions: 0.42 x 0.42 x 0.45 in (10.7 x 10.7 x 11.8 mm)
• Operating temp range: 32 to +158°F (0 to +70°C)

Downloads & Resources

• KickStart Guide complete with wiring diagrams and sample code
• Memsic 2125 Datasheet (.pdf)
• Stamps in Class Memsic Tutorial (.pdf)
• Memsic 2125 Demo Kit Documentation (.pdf)
• MXD2125G&M (.pdf)
• Memsic 2125 Demo Kit BASIC Stamp Source Code (.zip)
• Memsic 2125 Schematic (.pdf)
• Stamps in Class Tilt Display Control (.pdf)
• Javelin Stamp Example Code (.zip)
• N&V column "It's all about Angles" #92 (.pdf)
• N&V code "It's all about Angles" #92 (.zip)

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