Use a smartphone to launch model rockets
Launch model rockets using your smartphone or other Wifi device (like in the the Apple ad). Code is set up for multiple pads in a school/club setting. Simple and inexpensive to build. https://sites.google.com/site/thepirow/home/pipad
Re: Use a smartphone to launch model rockets
Similar, but this one uses AP mode, not an external access point. It also has rudimentary security for use in a multiple pad setup. Should also be cheaper to make.