Wireless IMU for Android

Brief overview

Wireless IMU is a free utility that turns a compatible mobile device into a portable inertial measurement unit by reading its onboard motion sensors. Once running, the app captures movement data so your phone or tablet can act like a gyroscope, magnetometer, or accelerometer for experiments or logging.

Data transfer and export

The app does not operate in isolation — it streams sensor data to a desktop computer for storage and analysis. To do this it requires both the device and the target computer to be on the same Wi‑Fi network; if no suitable connection exists, the app will prompt you to establish one. Collected readings are output in CSV format on the receiving machine for easy processing.

Available motion sensors

• Accelerometer — captures linear acceleration along device axes.
• Gyroscope — measures rotational motion and orientation changes.
• Magnetometer — senses ambient magnetic fields for heading and orientation.

If your device lacks one or more of these sensors, the app will simply collect data from whatever sensors are present.

Background operation and reliability

The app can continue capturing data while running in the background, but several users report instability: sessions may stop unexpectedly or the app may crash after a few minutes. Because of this behavior, long unattended recordings can be unreliable without supervision.

Strengths and drawbacks

• Converts a phone or tablet into a usable IMU at no cost.
• Straightforward CSV export makes the data easy to analyze.
• Requires a shared Wi‑Fi connection and a receiving computer to save data.
• Prone to occasional stops or crashes when left running.

Summary

Wireless IMU effectively leverages a device’s built‑in sensors to gather motion data and export it to a computer, making it a handy, no‑cost option for quick IMU-style measurements. Keep in mind the need for a shared network connection and potential stability issues during longer recordings.