Push button 1 would fire the turret, and maybe push button 2 would make it say one of its sayings. 2 axes = a joystick, so joystick control and some push buttons. Manual control : So once the wings are open, I would like to control the pitch and the pivot. Cara Mia was already on the agenda, but what else? I would have to build a controller and started mulling over what the controller would contain and what exactly I could do to the turrets. I had some nRF24L01 radio chips which I hadn't yet used, and thought that would keep in line with my goal of using inexpensive components and relying on mechanical design and code to make this work. Ok, so how to go about this? Well, I didn’t feel like modifying the turrets too much, so that was a constraint. After giving it some thought, and thinking that manual control would also be cool, I ended up deciding that I would build a Master Turret Controller, or an MTC. I can do that!” Well, I had the turrets, but to make it work, they would now need to communicate with each other, or with some other device. I thought, “hey, I’ve built a few turrets now. The LCD screen is particularly useful when customizing.Īfter I had completed the Portal Turret, I saw a short video clip of the Cara Mia opera scene at the end of Portal 2. It can also be used as a cheap controller to control anything that uses the nRF24L01 radio chip. This project is an extension or remix of my original Portal Turret ( Portal-2-Turret-Gun ).
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