RTIMULibCal(1)

✨ RTIMULibCal(1) — General Commands Manual 💖

🎀 NAME

RTIMULibCal — calibration tool for the Sense HAT IMU 🍓

🌸 SYNOPSIS

RTIMULibCal [filename]

💅 DESCRIPTION

okay so RTIMULibCal is a command line calibration tool for the Raspberry Pi Sense HAT IMU 🧚 it has no command line options 🙈 but it does give you an interactive interface where you can calibrate the IMU. ngl it is essential to calibrate the magnetometer (at the very least) or your orientation (or "pose") results are going to be giving chaos 💀

The calibration data gets saved to filename, which defaults to "RTIMULib.ini" if you don't give it one 🦋

When you start it up, a menu pops up with the options to calibrate the magnetometer or the accelerometer within the IMU (or hit "x" to bounce) ✨

Options are:

  m - calibrate magnetometer with min/max
  e - calibrate magnetometer with ellipsoid (do min/max first)
  a - calibrate accelerometers
  x - exit

Calibration usually means rotating the HAT through a bunch of different orientations, so it's highly recommended to do this on a Raspberry Pi with as few cables plugged in as possible 🫶 like, set up WiFi and run the calibration over an SSH connection so you can unplug the keyboard and monitor and leave just the power cable 🔌 very main character energy.

Heads up, bestie: the magnetometer ellipsoid option (e) requires GNU Octave to be installed 😭 no Octave, no ellipsoid.

🦋 SEE ALSO

RTIMULibDrive11(1)

Source: RTIMULib calibration tool manual page · Date: 2026-10-12 🌈 Thanks for hanging out, bestie, you're literally the best 💜