Auriga, cave survey freeware





Required hardware

History of changes

Reference manual




Download (version 2.60 of August 4, 2021)

  • Complete package (2 Mb zip archive) includes the software, the reference manual and 3 demonstration caves: Fairy Cave, exported from Toporobot, Kiamika, actually surveyed with Auriga in 2003 and Voronja (world's deepest cave), exported from Compass, but partially surveyed with Auriga in 2005

    Uses 1.2 Mb of RAM.

    Requirements: Palm OS 3.5 or better (runs on any Palm OS device since the Palm III.) or an Android, Windows Mobile or iOS device running the StyleTap Palm OS emulator (see the Support page for instructions)

    See the Support page for other manuals and educational videos

Keep posted about new Auriga releases or discuss about it by subscribing to a specialized e-mail list.

After trying Auriga, please write me your comments, tell what you like or don't like, problems you had (if any), how/where you use the software, your Palm OS device model, how you carry it underground, your location, etc. This feedback encourages me to pursue this project and helps me orient my work.

Terms of use

Using Auriga is free. Its cave database data format is public.

Donations, via PayPal ( or other are gladly accepted and shall serve to cover the cost of Palm programming books, development tools and the purchase of test devices.

Trying Auriga without a Palm

Auriga can be run under Windows within a pre-loaded Palm OS Emulator (POSE). This also emulates my DistoX, Radioloc 3D, GeoSiemens, Morse, StereoBase and Scallops apps.

You may also install the Sony Clié POSE (Palm OS 4, high resolution and virtual memory card) and load it yourself with PRC and PDB files.

My other software

  • DistoX calibration (version 2.05 of June 7, 2014): A DistoX (DistoX2-compatible) calibration program for Bluetooth-enabled Palm OS devices (encapsulates Beat Heeb's calibration algorithm in a user-friendly interface) - requires Mathlib (see Third-party complements)

  • Stamina 1.0: estimation of the effective battery duration by timing its discharge down to the low battery alert. Just tapping the screen starts the operation. Attention: the battery duration is affected by the screen brightness and the use of Bluetooth and of the memory card.

  • Radioloc 3D (version 3.01 of February 7, 2018): radiolocation calculator; computes depth, average and standard deviation of measures taken; supports field angle, field strength (Pease) and ratiometrics (Gibson) formulas. DistoX connection to measure distance, height or angle; slope correction for distance and computed depth (see help) and export of results to TXT or CSV - requires Mathlib (see Third-party complements)

  • GeoSiemens (version 1.01 of May 28, 2020): ground conductivity calculator for radiolocation and underground telephony; based on Ian Drummond and Brian Pease's works - requires Mathlib (see Third-party complements)

  • Scallops (version 2.01 of December 27, 2017): fluid (water or air) velocity calculator based on the length of scallops; computes mean diameter, velocity and flow; implements Curl's abacus and Scallopex's equations (Emily Woodward). DistoX connection to measure ceiling scallops with two (end) shots from a single point (see help) and export of results to TXT or CSV - requires Mathlib (see Third-party complements)

  • Morse (version 1.00 of October 25, 2014): Morse decoder: just tap what you hear, and hit OK to copy the letter to the message; a space (or new line if button held down) can be inserted, while holding down the message clears it

  • StereoBase (version 1.03 of October 26, 2014): 3D photo calculator; determines minimum/maximum distance to the subject and required camera separation based on focal length - requires Mathlib (see Third-party complements)

  • Auriga2SD (version 1.01 of October 1, 2019): Automatic backup of Auriga caves and networks on an SD card. See instructions at Support page

Third-party complements

* If clicking on a link below does not work, right-click on it to force its opening with HTTP

  • Mathlib: a mathematical and trigonometric shared library already used by many calculators and other computational programs (it could already be present on your Palm OS device)

  • Aceeca's 64-bit USB driver: USB driver required to perform a HotSync of Palm OS devices under 64-bit Windows versions (Vista and 7)
  • T3 Kit: Compatibility PRCs (released by Palm) allowing third-party applications (like Auriga) to use the landscape display mode of the Palm Tunsgten 3 (only applies to this model)
  • Font Bucket: font manager and selection of fonts to use in the map displayed by Auriga
  • XPrint: driver for IR-enabled Postscript and Laserjet printers
  • Left-handed? Install and activate Lefty, a freeware indicating you prefer a left-handed interface; Auriga then positions scrollbars on the left side of lists
  • PowerDigi: fixes chronic digitizer alignment problems - the key is now free
  • BrightnessFix (only compatible with Palm E2, TX, T3, T5, TX and Zire 72 and Sony TH55, UX40, UX50 and VZ90 devices): allows dimming the screen further down, thus reducing its power consumption - free
  • Frame TX: removes the 2-pixel wide white border around the screen in Palm TX, LifeDrive and T5 - free
  • FileZ: file manager - free
  • FindHack: search tool that enhances that of Palm OS - $14.95
  • Pilot Install: quick Palm OS installation tool running under Windows - free
  • PAR: tool that allows extracting a raw file (ex. GPX or KML) from a PDB obtained by HotSync - free
  • Cetus GPS: a utility tool that allows transferring data between a GPS and a Palm OS device
  • Snap: screen capture to a BMP file stored on the memory card

©Luc Le Blanc 2003