Electrical Engineering Portfolio

Jair Pacheco

Embedded Systems | Firmware | IoT Hardware | Controls

I build microcontroller-based systems that connect sensors, communication protocols, power electronics, and remote dashboards for real-world monitoring and control applications.

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Featured Projects

A focused collection of embedded systems, IoT, controls, and senior design work.

Senior Design | Team Lead | LTE Telemetry

REACH — Remote Energy Access and Control Hub

Team Lead Particle Boron LTE ESP8266

Solar-powered remote energy management system for field devices with LTE/WiFi telemetry, outlet control, scheduling, load prioritization, local diagnostics, and dashboard monitoring.

I served as team lead and developed the Particle Boron side of the system, including LTE telemetry and command routing from the dashboard to the ESP8266 control hub.

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Controls | PID | Hardware Testing

Auto-Pacing PID Robot Car

Control Systems Arduino PID PWM

EE333 project using ultrasonic sensing and PID motor-speed control to maintain a target distance from an obstacle.

  • Target distance: approximately 25 inches
  • Settling time: approximately 4 seconds
  • Overshoot: approximately 2 inches
  • Steady-state error: approximately 0 inches
View Project View GitHub
IoT | PHP/MySQL | ESP Firmware

IoT Sensor Dashboard and Networked Control

ESP Firmware PHP MySQL Chart.js

EE470 Internet-of-Things coursework organized into embedded firmware, PHP/MySQL backend scripts, sensor database logging, Chart.js visualization, and web-based LED/RGB control.

View Project View GitHub
Microprocessors | Embedded C | Assembly

PIC18F47K42 Microprocessor Projects

PIC18F47K42 Embedded C UART Assembly

EE310 microprocessors coursework focused on low-level firmware development, UART communication, LCD output, basic I/O, assembly programming, and microcontroller debugging.

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Leadership and Engineering Focus

My strongest work combines embedded firmware, system integration, communication links, and validation testing.

Senior Design Leadership

As team lead for REACH, I helped coordinate project planning, task delegation, integration, and validation. My technical focus was the Particle Boron side of the system: LTE telemetry, dashboard communication, and passing remote commands to the ESP8266.

Embedded Systems Approach

I focus on practical systems that connect hardware and software: microcontrollers, sensors, UART/I2C communication, firmware logic, web dashboards, and test-driven validation.

Technical Skills

Tools and technologies used across my embedded systems, IoT, controls, and hardware projects.

C C++ Python PHP MATLAB PIC18F47K42 ESP8266 Particle Boron Arduino UART SPI I2C LTE Telemetry WiFi PHP/MySQL Chart.js MPLAB X PlatformIO LTspice Vivado ROS2 Oscilloscope DMM Keysight FieldFox

Contact

Connect with me or view the source repositories for my portfolio projects.