Artemia Feeder: Advancing the Design for Fish Larvaeculture

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README.md

Artemia Feeder: Advancing the Design for Fish Larvaeculture

Background

Our sponsor, an aquaculture researcher, needed an updated graphical user interface to accurately and automatically feed his supply of striped bass larvae. Our design improved upon the design of a previous senior design team’s user interface by making it easier to control their pump-based feeding system without jumping through numerous hoops, as the original LiveFeeder (a program that initiates the feeding system) operated through a series of command line prompts in Terminal. The GUI, written in Python, incorporates graphs and sliders in its design in order to display the information of past feedings, while also enhancing the user-friendliness of the design.

Design Highlights

Overall System Design

Graphical User Interface

The initial interface so that rather than a series of command-line prompts, the user can easily manipulate the desired artemia concentrations, liquid volumes in cones, feeding rate, start delay, number of feeding cycles, and feeding intervals using color-coded sliders and drop-down menus.

This interface also has the capability of plotting previous feedings to a graph. The number of recent feedings to be plotted can be selected from 5, 10, or 20 and the GUI will produce the desired graph accordingly.

LiveFeeder 2.0

LiveFeeder is the name of the program used to run the pump-based feeding system. This program was updated so that it can be implemented with our GUI. The changes in the source code allow for files produced by the interface (which contained sets of numbers corresponding to selected inputs) to be read so that the values contained within those files are written to variables defined in LiveFeeder. The feeding pumps will then run using these values.

Concentration Checker (descoped)

An IR emitter/detector circuit was planned to be included in this project, but had to be descoped. This addition would have measured the amount of artemia flowing through the tubes in the pumping system, while the MCU would receive this amount via the amount of ADC voltage produced by an LED in the concentration checker circuit. This ADC voltage would have been read through the use of a Shell program designed to measure the voltage read by a pin from the microcontroller, which was in turn connected to the circuit. This feature had to be descoped along with the circuit.