That’s what a group of Ottawa hackers will be playing on Sunday, when they compete to see who can program the coolest and most useful flying robots at a downtown event called Summer of Drones. Also known as UAVs, or unmanned aerial vehicles, drones are usually associated with covert military missions. But they are also deployed in public emergencies such as fires and explosions, where they can get to places human beings can’t, and are becoming increasingly popular with hobbyists who program and fly them for fun. Sunday’s event is all about showing people what drones can do, says lead organizer Alan Gardner, a developer at Ottawa data management firm Pythian and a big fan of UAVs. “The goal really is to increase public awareness of UAVs and excite the public about what they can be used for,” says Mr. Gardner. “They’re very approachable and very friendly.” A total of 28 programmers are taking part in the contest in the ByWard Market, competing in seven teams of four. Each team will have about five hours to program a drone, with the goal of coming up with the most useful or inventive hacks as determined by a panel of judges. Those uses could include coming up with new control schemes (using a Kinect or joystick, for example), real-world applications such as following a path or person or even creating a game. “The goal is to get people to say, ‘Aha, that’s useful,’” says Mr. Gardner. “We’re looking for the best overall application of the drones.” The winning team will take home a kit of microcontroller boards and shields for hobbyist projects. But the real reward isn’t just material - it’s the adoration of your peers, says Mr. Gardner. “The biggest prize is that everyone will think you’re pretty cool to develop the best drone,” he suggests enthusiastically. “It’s a pretty badass thing to do as a programmer.” The public can watch a demonstration of the programmers’ work at 4:30 p.m. at the Shopify office at 126 York St. UAV fans can also check out the drones in action - and even fly them themselves - during the Ottawa Mini Maker Faire at the Canada Science and Technology Museum on Aug. 31 and Sept. 1.