Ashwat Prasanna
Robotic Arm
As the name implies, this is a robotic arm. It is controlled by a joystick, which can me moved left-right to rotate the robotic arm, up-down to raise or lower the arm, and pressed down to grab stuff with the arm.
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The robotic arm consists of 3 separate parts. At the base, everything is mounted on a large motor, with a tower on it. The tower houses the electronics, an Arduino Uno, its power supply, the large motor, it's power supply and a transistor that powers it through a signal from the Arduino.
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The arm is a smaller tower connected through a Micro Servo motor, and has a counterweight on the other end. At the end of the arm is another Micro Servo motor connecting to a smaller grabber. The other grabber is stationary and is adjacent to the moving one. The grabber moves back and forth for however long the joystick is pressed.
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Servo (and Micro Servo) motors consist of a motor and a variable resistor, through which the position of the motor can be determined. Overall, it makes sure that if the motor is rotated externally, it can move back. This allows the arm to be capable of lifting weights greater than its own counterweight.
AR/VR Feeling Gloves
If you've experienced Virtual Reality, you would have noticed it looks extremely realistic. One problem, along with not being able to move (which is no longer a problem with AR), is that you cannot touch or interact with objects, without controllers that are bulky and expensive.
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This is a motorized glove, that can interact with your fingers and provide resistance, making it feel as if you are touching something.
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It has 5 velcro rings, for each finger. These are soft and spead the pressure over a large area of your finger, which allows the experience to feel comfortable. These are connected to a large servo motor, and a long shaft, that can pull them back, an Arduino Nano, a bluetooth module, and a power supply. On the power supply, is an AR Code (looks like a QR code)
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This has its own app (not on the App Store) which displays something in AR (can be worn on a VR headset with a hole for the camera). It simultaneously tracks the AR code's spatial coordinates in the background, and when they contact the object, it sends a bluetooth signal to the glove, which pulls back the servo motor to allow you to "feel" the object.
The drone
This is a quadcopter. It uses a flight controller board from an old, broken quadcopter. It has been wired up with new motors, and a new, lightweight wooden frame. It has a newer battery, capable of 600 mAh, compared to the older 500 mAh battery.
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In the future, it is planned to be used as a platform to test other projects, such as paper planes and air-dropping systems, which would be able to deploy objects in mid-air.