Jackson Wheeler

Team of three developed automatic plant watering system. A microcontroller (MCU) placed in the plant controlled the watering system, watering at the server's instruction. A mobile application developed provided user interface to see the status of their plants and tailor the automatic watering to fit their needs.

I designed the system architecture, including the means of communication between MCU and server, and server and mobile application, defining the necessary APIs & functionality to fit our requirements.

Implemented API server and SQL database on Raspberry PI device.

Implemented port forwarding on home network to allow constant SSH & development access to Raspberry PI server. Utilized Ngrok service to make API server publicly available.

Developed firmware for microcontroller to, while using minimal power, notify the user when it is lost. When left stationary for X amount of time, the microcontroller initializes BLE to beacon to nearby devices it's lost status until it detects movement again.

Wrote multiple firmware drivers from scratch, including for accelerometer, I2C, timers, and LED.

Refactored firmware to considerably reduce power consumption, utilizing CPU sleep mode.

Deployed C++ code on ~25 IoT devices (ESP32 Arduino Boards) for data collection in RIMAC (UCSD's Fitness Center) during May 2023. Each board records all nearby bluetooth beaconing devices and their signal strength, then logs that data to our backend API through HTTP.

Includes:

• Overseeing of location, placement, and operation of ~25 IoT devices for data collection
• Implementing WiFi & BLE capabilities onto embedded Arduino boards
• Implementing API calls from embedded devices to log data to API

Implemented API that logs data from IoT devices, through HTTP request, to our backed SQL database. Also implemented API methods for user to view the SQL data.

Includes:

• Uvicorn to run our code as a server
• FastAPI to receive and handle API calls
• PyMySQL to upload to and download from our SQL database

Implemented Operating System concepts in the Nachos operating system. Nachos is a Java application written to perform the functions of a real OS, but with missing implementations that would be filled in by us, the students.

Accomplished:

• Implemented thread system in the Nachos OS
• Implemented system calls and support for multiprogramming through paging
• Implemented more sophisticated memory management through on-demand page allocation and swapping

Manipulated source code of a personally created JotForm form, directing user data to REST API backend.

Utilized OpenAI API in the .NET core framework to develop a console application that allows the user to chat in real time with ChatGPT

Developed code to accurately & efficiently route and send incoming packets to the next step in the network, given the packet's final destination, and according to the IP networking protocol.

Includes:

• performing longest prefix match on the routing table
• sending and receiving ARP requests and replies
• generating & sending ICMP error packets and echo replies

Implemented Sliding Window Protocol on both the sender and receiver side, ensuring reliable in-order delivery of frames between any number of senders and receivers.

Includes:

• selective retransmission of packets after timeout
• sending cumulative ACKs (acknowledgement of received packets)
• framing of messages
• CRC-8 error detection & handling
• TCP-like connection establishment protocol

Developed this portfolio website from scratch, using pure HTML, CSS, and a minimal amount of JavaScript

Goal: A simple & straightforward website designed to display who I am and what qualifications I have for a given job. Designed for practicality and efficiency, minimizing excess content

Implemented multiple stages of a compiler (in Java) for the MiniC language (a subset of C). Implemented Scannar, Parser, Semantic Analyzer, beginnings of Code Generator.

Worked with team of 6 to develop an Android application for navigating to exhibits from within the San Diego zoo. User creates list of exhibits they desire to see, an ideal route is computed, and the app provides the user with directions to each exhibit along the route. During the route, users may perform actions (i.e. skipping an exhibit, replaning the route)

Built program that web scrapes mutual fund data from Charles Schwab website and outputs organized Excel file

Utilized NEAT-Python and its reinforced learning in order to train a program on how to play the python snake game effectively.

Challenged myself to utilize a new programming language, Java, to develop a functional chess game that can be run in the terminal.