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.