== Introduction and Overview Welcome to the Altus Metrum community! Our circuits and software reflect our passion for both hobby rocketry and Free Software. We hope their capabilities and performance will delight you in every way, but by releasing all of our hardware and software designs under open licenses, we also hope to empower you to take as active a role in our collective future as you wish! Thank you for your interest in TeleLaunch, a wireless control system for launching hobby rockets. Each TeleLaunch system contains at least two units, a launch control box (TeleLCO) and one or more launch initiation boxes (TeleFire). In this manual, we hope to provide all the information required to configure and successfully operate a TeleLaunch system. Unlike other Altus Metrum products, that are usually provided as circuit boards that the user must arrange to mount and wire up, all products in the TeleLaunch system are sold as fully packaged, almost-ready-to-use units. This means that with only minimal one-time configuration of each unit, a TeleLaunch system can be made ready for use very quickly. Because documentation is just as prone as software to contain "bugs", and can always be improved... If you have questions that aren't answered in this manual, or just need a little help figuring things out, we strongly suggest joining the Altus Metrum user email list, which you can do by visiting https://lists.gag.com/mailman/listinfo/altusmetrum.