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carter-howell/README.md

Carter Howell

I'm an electrical engineering student at Tennessee Technological University. I build robots, ESP32 projects, circuit boards, and software for working with electronics.

Most of my current work involves motors, servos, batteries, embedded firmware, PCB design, and EasyEDA automation.

Current Focus

  • ESP32 firmware and electronics
  • PCB design, power distribution, and battery protection
  • Robots with motors, servos, sensors, and 3D-printed parts
  • EasyEDA tools that communicate through MCP
  • Schematics, test results, and hardware revision notes

Featured Engineering Work

DIY Wall-E Robot

Status: Working robot / active improvements

I built this Wall-E robot with an ESP32, DC drive motors, servo-controlled arms and claws, Bluetooth gamepad control, a DFPlayer Mini, and 3D-printed parts. The robot works, and I have also built and tested a controller PCB while continuing to improve the electronics packaging.

Repo: wall-e-robot

EasyEDA Copilot Contributions

Status: Working EDA automation / active open-source contributions

I contribute tested improvements to BioShot's open-source EasyEDA Copilot project. My current pull requests address incomplete project trees, safer linked-board deletion, full EasyEDA library search, and cooperative interruption of long-running scripts.

Repos: contribution showcase | EasyEDA Copilot fork

Low-Voltage Cutoff PCB

Status: Completed and working PCB

I designed, assembled, and tested this battery-protection board. I took it from threshold calculations and schematic capture through PCB layout, manufacturing, assembly, and debugging.

Repo: low-voltage-cutoff-pcb

Dual Robotic Arms

Status: Completed and working robotics project

I built two 3D-printed robotic arms controlled by an ESP32 and Xbox controller. The firmware maps the controller inputs to the servos through PCA9685 driver boards.

Repo: dual-robotic-arms

Web-Controlled RC Car

Status: Working RC car / active improvements

I built this RC car with an ESP32-CAM, browser controls, Xbox controller support, an L298N motor driver, soldered wiring, a boosted 1S battery, and a 3D-printed chassis.

Repo: web-controlled-rc-car

Supporting Software

I also build desktop utilities, web applications, and cloud-connected tools.

Recent examples include:

  • Word-Math: Windows tray utility for evaluating arithmetic directly inside Microsoft Word with a global hotkey.
  • Macro: Desktop tray utility for opening frequently used folders with custom global hotkeys.
  • wchowellarchive: Firebase-hosted engineering portfolio and project archive.
  • College Choice Hub: Student college-preference web app archive originally built with PHP, SQL, and AJAX, then migrated to Firebase.
  • CashCamel: Firebase web app archive for friend-group contracts, deposits, withdrawals, and agreement-based workflows.

Earlier Projects

These are earlier projects I still like keeping visible because they show how long I have been building things, experimenting with tools, and finishing playable or usable work.

  • Hollow Clock: 3D-printed magnetic clock using an RP2040 Zero and stepper motor.
  • Platformer UE4 Game: Early Unreal Engine 4 platformer project.
  • GameCentralCS: Firebase-hosted Unreal Engine HTML5 game collection archive.

Portfolio

Project archive and portfolio:

wchowellarchive.web.app

Direction

I am building toward roles in consumer electronics, product development, embedded systems, PCB/electronics design, robotics, R&D, and power electronics.

I want to work on products where I can help with the electronics, firmware, testing, and the rest of the build instead of only one isolated part.

Pinned Loading

  1. wall-e-robot wall-e-robot Public

    My working Wall-E robot with ESP32 control, DC drive motors, servo-controlled arms, Bluetooth input, audio, 3D-printed parts, and a tested controller PCB.

    C++

  2. low-voltage-cutoff-pcb low-voltage-cutoff-pcb Public

    My completed and working 3S low-voltage cutoff PCB using an LM393, TL431 reference, MOSFET switching, and reinforced current path.

  3. dual-robotic-arms dual-robotic-arms Public

    My completed ESP32 Bluetooth dual robotic arms with Bluepad32 input, PCA9685 servo control, 3D-printed mechanics, and calibrated motion.

  4. web-controlled-rc-car web-controlled-rc-car Public

    My working ESP32-CAM RC car with live video, WiFi and gamepad control, L298N motor drive, soldered wiring, and a 3D-printed chassis.

  5. easyeda-copilot-contributions easyeda-copilot-contributions Public

    My working EasyEDA automation and tested open-source contributions for project state, board cleanup, library search, and script control.

  6. wchowellarchive wchowellarchive Public

    Photos, notes, and links for my electronics, robotics, software, and older projects.