mLaunch is a mesh network based model rocket launch system designed to handle up to 8 launch pads. Its primary feature is safety. Multiple commands are required to enable multiple relays in the launch circuit. It also provides feedback on igniter resistance and battery voltage. Using a mesh network, allows near launch pads to relay launch commands to launch pads further away.
See file Report on Project mLauch Version 3.0.pdf for an overview of mLaunch