Pet Feeder
For my engineering project at my last year at Merryhill School, I am making a pet feeder. In order to make this, I will be controlling the circuit with a transistor, which acts as an electronic switch. Two ends of the transistor will be on either side of the circuit, and the third end will be connected to a GPIO pin of the Raspberry Pi. The power supply will come from four AA batteries (6V) and they will control the motor, which I have taken from a remote controlled car I had. The motor will turn the axle, which is just a skewer in the middle of two cardboard disks taped together. The jar's lid will be taken off, and the jar itself will be turned upside-down. The disks will block the food. When it comes time for the pet to have a meal, the axel of the feeder will turn 180 degrees, momentarily allowing food to pass, and will then quickly close. But how will it know when and for how long? Well, that will be controlled by a program written in Python on the Raspberry Pi. Currently, I do not have every single detail figured out, but I will soon. The project is due in February.
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