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The original plan was to build two battle blimps that used sonic to ovoid objects and infra- red to find each other, a direct hit from the nose would count as a hit and if the blimp hit anything else on any other part of its body it would be a crash. Sadly when the balloon turned up it was obvious that i wasnt going to two in the same room and having just moved house and being near xmas i was short of money, so the blimp became an autonomous bot and all but two sensors were changed to sharp ir and ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/autonomous-blimp