![]() The LCD screen however, was not available for the circuit software, but can be attached to the Arduino by attaching the following wires to the following pins on the Arduino, as per the colours in the image above: The wires will need to be attached in accordance with the circuit diagram attached, and each component has a specific hole through which its wires can attach to the Arduino. You can close the top compartment of the feeder with the lid if you like. Place the LCD screen inside the larger rectangle raised from the main body, with the screen facing outward. Place the ultrasonic sensor in the holder just above where the food will come out, such that the two circle parts are facing away from the main body. Attach the potentiometer to the small rectangle sticking out of the main body so that the three prongs face towards the main body. Put the servo in the small square component so that the wires sit in the cut out part in the wall (see photo). Place the Arduino inside the lower compartment of the main body. ![]() Slot the corresponding square rod (servo rod) through the square hole. ![]() Place the feeder component (the curved rectangle with a square hole in the middle) inside the main body such that the overhang part of it (see attached image) lies on the side with the hole for dispensing food, and the completely flat bit is facing upwards. Once they have finished printing, take all the 3-D components and lay them on a table.
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