Skip to content
CAD files and software for the launch tower computer (LTC)
MATLAB sed Shell
Branch: master
Clone or download

Latest commit

Fetching latest commit…
Cannot retrieve the latest commit at this time.


Type Name Latest commit message Commit time
Failed to load latest commit information.


PSAS Launch Tower Computer (LTC)

PSAS has had three generations of launch tower computers:

  • LTC v1 (2005-2012)
    • PC-104+ 486 running Linux 2.4 talking CAN to PIC18F-based boards with relays and analog
    • Lucent "Wavelan" PCMCIA WiFi card
    • 12V SLA battery powered with 30W solar panel
    • Metal IP66 case on independent
  • LTC v2 (2012 - 2014)
    • Beagle board talking USB to Phidget relay and analog boards
    • Alpha WiFi board
    • Ethernet umbilical cord
    • 12V SLA battery powered with 30W solar panel
    • Medium sized plastic IP67 enclosure
  • LTC v3
    • BeagleBone Black using GPIO and analog mounted on a single custom carrier PCB
    • 14.7V LiPo pack with solar charger.
    • Smaller case

This repo contains everything related to the launch tower computer (LTC), with the exception of the userspace software, which is contained in the launch-tower-comm repo.


  • doc

    • Documentation, what there is of it.
  • eagle

    • Schematics and PCB layouts, made with Eagle.
  • laser_cut_drawings

    • Line art of the power and ignition boards' mounting panels, suitable for use with a laser cutter.
  • ltc3

    • Everything related to the design and manufacture of the third generation launch tower computer, LTC3.
  • os

    • Everything needed to bring up a fresh, bootable Debian GNU/Linux system, just the way we like it.
You can’t perform that action at this time.