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HAB Pilot

A satellite-based balloon Flight Computer that:

  • Controls other Loonatec HAB Modules such as the HAB Ballaster & HAB Venter
  • Command & telemetry via the Iridium satellite network for world-wide coverage
  • Built-in flight termination: can activate both squibs (pyrotechnic) and burn-wires (thermal)
  • Monitors flight conditions: GPS, pressure, accelerometer, magnetometer, and clock sensors and can respond autonomously, sending pre-programmed commands

Why fly a HAB Pilot Balloon Flight Computer?

Because the HAB Pilot is the easiest and cheapest way to add altitude control capabilities to your next balloon flight.

It seamless integrates with the other Loonatec HAB Modules to vent lift gas, drop ballast, and terminate flights. While also providing world-wide command and telemetry via a satellite communication link to your computer.

The hardware is proven. It has been successfully used to controlled latex and zero-pressure plastic balloons flights. It offers redundant safeguards to protect against potential issues during the flight.

How to control the HAB Pilot Balloon Flight Computer?

The HAB Pilot uses GroundControls’s Iridium SBD interface to send and receive messages. Loonatec’s Mission Control software runs on MacOS, Windows, and Linux. It uses a simple interface to display relevant data and send commands. It automatically creates and updates a CSV data file for later reference and a KML file that can be used as a “Network Link” to provide real-time plotting in Google Earth Pro desktop.

The HAB Pilot can also be controlled by pre-configured commands that activate based on gps, pressure, time, accelerations, and other onboard data streams. One of the most common uses of this is to set a geofence before the flight that ensures your payload never drifts to undesirable locations. Even if you become inattentive on long-duration flights. These commands activate the built-in flight termination hardware or send commands to a HAB Module.

How do I attach a HAB Module to the HAB Pilot?

The first step is to decide if you want the HAB Module to be connected by a wired or wireless connection. The wired connection is ideal for short distances such as where both devices are together in your gondola and you need RF silence. The wireless connection is ideal where the hardware is strung out along the flight train. Such as between a venter on top of the balloon and the flight computer below the parachute with your payload.

The second step is to add the HAB Module to the HAB Pilot’s Flight.cfg file. This tells the HAB Pilot how to communicate with the HAB Module(s). Including how frequently to query the module’s status. And whether or not to configure the HAB Module’s watchdog timer to provide redundant flight termination.

Can I fly the HAB Pilot without an Iridium Satellite Modem?

Yes, the HAB Pilot can be flown as a stand-alone flight computer that relies solely on pre-configured commands to control the flight. This includes activating the attached HAB Module(s).

Specifications

75 grams – HAB Pilot

120 grams – HAB Pilot with 3x L91 batteries

140 grams – HAB Pilot with 3x L91 batteries and its foam enclosure

 

Documents

HAB Pilot Balloon Flight Computer User Guide rev 5 – Jan 2024

HAB Pilot Balloon Flight Computer User Guide rev 4 – March 2023

 

Firmware

11 Dec 2023

  • Added debounce option to Compare condition
  • Flight.cfg is now evaluated before GPS time is acquired
  • Flight.log timestamping now removed from configuration section making it easier to copy old configurations into Flight.cfg
  • Added ‘EnableDebugInfo’ configuration option to help with troubleshooting issues
  • Changed SDCardRate log rate arguement to seconds between entries (in 0.5 sec intervals)
  • Now evaluates remaining free RAM before adding new Commands from Flight.cfg to prevent flight issues
  • SD Card writing improvements to help when slow SD cards are used

10 March 2023

  • Fixed HAB Module command action completion issue
  • Updated Pressure dataset to match other dataset labeling
  • Removed Heartbeat logic, replaced with HAB Module terminate logic
  • Increased max number of waypoints for Geofence trigger from 12 to 128

7 Oct 2023

  • Improvements to HabBus configuration
  • Improved HAB Module user interface

27 Nov 2021

  • Added Heartbeat termination logic to HAB Module interface

13 Oct 2020

  • Improved squib/cutter control
  • Changed Geofence trigger logic from basic square to polygon

Hardware

Revision 2.2 — Dec 2023

  • Reduced overall size
  • Improved self-heating control
  • Added external power input for solar or external battery supply
  • Improved antenna orientation
  • Self-closing foam enclosure

Revision 2.1 – Dec 2022

  • Fixed Iridium connector issue
  • Improved power supply issues

Revision 2.0 – Jan 2022

  • Added LoRa radio hardware
  • Added opto-isolated HabBus hardware
  • Changed Power-On switch from button press to slide switch for restart capability
  • Added motor control hardware

Revision 1.3 – March 2021

  • Failsafe configuration—integrated a HAB Cutter via one-way opto-isolated HabBus interface

Revision 1.2 – June 2020

  • Removed GPS UART interface
  • Improved squib/cutter hardware
  • Added Iridium power switch

 

 

Videos

Overview of the HAB Pilot v2.2