Deep Brain Activity (DBA)

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Site URL


Frédéric Jouault
Antoine Jalabert

Founding Date

August 26, 1999

Years Active

1999 to 2003


Programmed For

TI-89, TI-92, PC


Assembly, C, C++





Deep Brain Activity (DBA) was a programming group for the 68k series of TI graphing calculators and created hardware enhancements for the calculator. They released a few notable programs, such as Archive Utility, AS92, RealTimeClock, as well as having several interesting projects under development. They were one of the sites that got hosting through

Group Significance

  • Notable programs/games (including screenshots)
  • Notable tutorials/documents
  • Other

Group Contributions

  • List of their programs and games
  • Include a screenshot for some of their best games/programs

Group Staff

  • Frédéric Jouault (Fred)
  • Antoine Jalabert (Kty)

Group Milestones

  • List of their important milestones (founding, important programs, etc.)

Site URLs

Site Screenshot

(Screenshot of Group homepage circa year)

Group History

(Taken from about page)

We are two students in school engineering in France (ESEO - Ecole Supérieur d'Electronique de l'Ouest). We are interested in programming in assembly (68000, PIC, …) or other language such as C/C++ or Pascal. Our development platforms are very specific since they are Texas Instruments calculators such as TI92/92+/89. But we of course interface all that with the good old PC !

Moreover we both think that the more interesting way to program is to program for a specific hardware . So we always think about any hardware enhancement for our tiny calc; For example we've made an external matricial keyboard drived by a PIC, or more recently, we just mapped a MUX Real Time Clock into our TI92 ! For us it is not only programing, it's programing for the hardware we've made :)