Use your smartphone to control an airboat
Our project for this issue of Raspberry Pi Geek is building an airboat connected to an Arduino, to which we send commands over Bluetooth from a smartphone. The electrical parts you'll need for this project are listed in the "Electronics" box.
For flotation, we used two medium-sized plastic bottles, and for the frame we used K'Nex pieces (Figure 1) [5]. Duct tape worked well to attach the K'Nex frame to the bottles. One of the fans had fan blades that were molded backward, which is why it is mounted on the back of the frame facing the opposite direction; otherwise, all three fans should face forward. The fans can be attached to the frame with wire or bolts and screws. To protect the Arduino, a plastic container can be taped to the middle of the frame.
Figure 1: The airboat frame.
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