');">

Expert Electrical Engineer Consultant

Michigan-based electrical engineer with 15+ years of experience specializing in embedded systems, IoT solutions, and product development. Serving clients nationwide with 5+ years of independent consulting.

Get Free Quote View Services

Services

Comprehensive electronics design and development services from concept to production

Design Architecture

Planning and developing architecture for electronics systems, ensuring optimal performance and scalability.

Project Management

Complete task, milestone, and timeline management to keep projects on track and within budget.

Schematics Design

Professional schematic creation using industry-standard tools like Altium and Circuit Studio.

PCB Layout

Optimized PCB layout with best practices for signal integrity and cost-effective manufacturing.

Embedded Software

Embedded software development for Microchip, STM, SiLabs, Cypress, NXP, TI, and Nordic platforms.

CAD Design

3D CAD design and mechanical engineering using Fusion 360 for enclosures and components.

IoT & Cloud Integration

Development of server interfaces and cloud connectivity for embedded IoT projects and systems.

Prototype Development

Rapid prototyping with on-site reflow oven and 3D printer to accelerate development cycles.

Technical Experience

Comprehensive expertise across multiple technologies, platforms, and industries

Design Software

Altium Designer Circuit Studio Eagle CAD KiCad Fusion 360 SolidWorks

Technologies

Embedded Systems WiFi Bluetooth Zigbee LoRa Cellular IoT Matter Capacitive Touch Battery Systems Vision Systems Motor Control

Microcontrollers

Arduino/Raspberry Pi ESP32/8266 TI MSP430 PIC10/12/16 STM32F4/F0 nRF51/52 Cypress PSoC SiLabs EFR32

Programming

C/C++ Python Java HTML/CSS/JS PHP Node.js LabVIEW Nordic SDK ESP-IDF

Industries

Automotive Medical Marine Agriculture Consumer Industrial IoT

Certifications

Altium Certified LabVIEW Associate 3 Patents Arduino Instructor edX Certificates

Portfolio

Selected projects showcasing embedded systems design and development expertise

3D Motion Tracking Ball - Top View 3D Motion Tracking Ball - Bottom View
IMU Motion Tracking Gaming

3D Motion Tracking Ball

Interactive gaming device using IMU sensors for 3D motion detection. Features floor and ceiling calibration system with proximity-based scoring for ceiling ball games.

IMU-based motion sensing
Calibration system
Real-time scoring

Technologies:

Embedded C IMU Sensors PCB Design 3D Tracking
STA309A13TR Development Kit - Top View
DDX Digital Audio 8-Channel

STA309A13TR Development Kit

Breakout board for STMicroelectronics' STA309A multi-channel digital audio processor. Enables experimentation with high-quality DDX digital amplification and 8-channel audio processing.

Up to 8 audio channels
192 kHz, 24-bit audio support
I²C, I²S interfaces

Technologies:

STMicroelectronics DDX Audio PCB Design 64-TQFP
Automotive Armrest Light - Top View Automotive Armrest Light - Bottom View
Automotive LED Control 12V Systems

Automotive Armrest Light

Custom LED lighting solution for automotive armrest applications. Features intelligent dimming, low-power operation, and automotive-grade reliability for enhanced interior ambiance.

PWM LED dimming control
12V automotive power
Temperature compensation

Technologies:

Embedded C PWM Control Automotive Grade LED Driver
Indoor Terrarium Control System - Top View
IoT Environmental Agriculture

Automated Terrarium System

Complete environmental control system for indoor terrariums. Features multi-sensor monitoring, automated watering, climate control, and local dashboard interface for optimal plant growth conditions.

Water pump & misting system
Soil moisture & water level sensors
PWM LED lighting control
Exhaust & misting fans
Local monitoring dashboard

Technologies:

Embedded C PWM Control Tank Circuit Multi-Sensor Web Dashboard
Multi-Channel Battery Charger Development Kit - Top View
Li-Ion 4-Channel 750mA

BQ24086 Multi-Channel Charger

Development kit featuring four independent BQ24086DRCR Li-Ion/Li-Pol charger ICs from Texas Instruments. Enables parallel charging of multiple battery cells with thermal regulation and comprehensive safety features.

4 independent charging channels
750mA max charge current per channel
Thermal regulation & timer protection
Over-voltage & short circuit protection
3-phase charging algorithm

Technologies:

Texas Instruments Linear Charging Multi-Channel 10-VSON
Cystic Fibrosis Therapeutic Device - Main Controller Cystic Fibrosis Therapeutic Device - Remote Top Cystic Fibrosis Therapeutic Device - Remote Bottom
Medical Bluetooth Therapeutic

CF Therapeutic Vibration System

Wireless therapeutic device for cystic fibrosis patients featuring BLDC motor-driven vibration therapy to assist with airway clearance. Includes Bluetooth-enabled remote control with display for precise treatment management.

Medical-grade BLDC vibration motors
Nordic nRF51822 BLE communication
DS2715BZ+ battery management
A4963GLPTR-T motor controller
Wireless remote with display

Technologies:

Nordic BLE BLDC Control Medical Device Battery Protection
BeerMe Social Dispensing System - Device View BeerMe Social Dispensing System - PCB Top
Social IoT WiFi WebSockets

BeerMe Social Dispenser

WiFi-connected social dispensing system where friends can remotely send drinks to each other. Features precise volume measurement, user registration, and real-time websocket communication between networked devices.

ESP8266 WiFi connectivity
HX711 load cell amplifier
Peristaltic pump dispensing
WebSocket server communication
Multi-device social network

Technologies:

ESP8266 WebSockets Load Cell IoT Server
Automated Beer Brewing System - Main Board Top Automated Beer Brewing System - Main Board Bottom Automated Beer Brewing System - Display Tether
Brewing PID Control API Integration

Automated Brewing Controller

Professional brewing automation system with Brewfather API integration. Features dual-zone SSR heating control, triple load cell monitoring, precision RTD temperature sensing, and PID process control with LVDS display interface.

Multi-RTD temperature monitoring
Triple load cell weight tracking
Dual SSR immersion heater control
PID temperature control algorithm
LVDS display with touch control

Technologies:

ESP32-WROOM ATSAMG55 Brewfather API NAU7802SGI
EFR32 BLE Development Kit - Breakout Board
BLE SiLabs Breakout

EFR32 BLE Development Kit

Minimalist breakout board for Silicon Labs EFR32 Bluetooth Low Energy SoC. Provides easy access to all GPIO pins and antenna connections for rapid prototyping and development in a compact form factor.

EFR32 BLE 5.0 compatible
Antenna access & RF testing
All GPIO pins broken out
Minimal design for flexibility
Simplicity Studio compatible

Technologies:

Silicon Labs BLE 5.0 RF Design Prototyping
Automotive B-Pillar Light - Top View Automotive B-Pillar Light - Bottom View
Automotive High Power LED Constant Current

Automotive B-Pillar Light

High-performance LED lighting solution for automotive B-pillar applications. Features precision constant current driver with AP64100QSP-13 regulator for optimal LED performance and thermal management in vehicle environments.

High-power LED constant current drive
Automotive-grade components
AP64100QSP-13 power regulator
Thermal protection & management
EMI compliance design

Technologies:

LED Driver Automotive Grade Power Management EMI Design
Drone Show Control Board - Top View Drone Show Control Board - Bottom View
Drone RGB Control Pixhawk

Drone Show Control Board

Specialized flight controller interface board for drone light shows. Manages communication with Pixhawk autopilot systems while providing precise RGB LED control using AL8860 drivers for synchronized aerial displays.

Pixhawk flight controller interface
AL8860 RGB LED driver control
Synchronized light show coordination
Multi-drone ecosystem integration
Lightweight UAV-optimized design

Technologies:

Pixhawk AL8860 RGB LED UAV Systems
Buzzer Development Kit - Top View Buzzer Development Kit - Bottom View
Audio 555 Timer Test Board

Buzzer Development Kit

Comprehensive buzzer testing platform featuring six different buzzer types with independent control switches. Includes 555 timer circuits with adjustable frequency controls for audio signal generation and buzzer characterization.

Six different buzzer types
Individual on/off control switches
555 timer frequency generation
Adjustable frequency controls
Audio testing & comparison

Technologies:

555 Timer Audio Testing Frequency Control Component Test
CGM Alert System - Base Station CGM Alert System - Pillow Controller
Medical Wireless Safety Alert

CGM Sleep Alert System

Medical safety device that interfaces with continuous glucose monitors to provide critical nighttime alerts. Features wireless communication between base station and pillow-embedded controller with vibration and audio alerts for blood glucose emergencies.

CGM interface & monitoring
Low frequency wireless transmission
Pillow-integrated alert controller
High-intensity vibration & audio alerts
Critical safety monitoring

Technologies:

Medical Device Low Frequency RF CGM Interface Alert System
Light Chase Game - Top View Light Chase Game - Bottom View
Gaming LEDs Battery

LED Light Chase Game

Classic arcade-style light chase game with sequential LED patterns and user interaction. Features rechargeable battery operation, precision timing control, and responsive button input for an engaging handheld gaming experience.

ATtiny406-MNR microcontroller
IN-PI33TBTPRPGPB LED array
MCP73832T battery charging
Interactive button control
Precision timing sequences

Technologies:

ATtiny406 LED Control Battery Management Game Logic
Smart Pet Collar - Top View Smart Pet Collar - Bottom View
Pet Tech Temperature LED Control

Smart Pet Monitoring Collar

Intelligent pet collar featuring LED visibility control and temperature monitoring capabilities. Includes rechargeable battery system, precision LED driver, and integrated temperature sensor for pet health and safety tracking.

ATtiny1616-MFR controller
AL5802-7 LED driver control
TMP20AIDCKR temperature sensing
MCP73831T battery management
XZCBDDGME56W color LED

Technologies:

ATtiny1616 Temperature Sensor LED Driver Pet Safety
Smart Cornhole System - Circuit Board
Gaming RGB LEDs IoT
WIP

Smart Cornhole Game System

IoT-enabled cornhole game enhancement with embedded LED light rings and automated scoring. Features WiFi connectivity, distance sensing, hole detection, and customizable lighting effects with epoxy-sealed weatherproof installation.

ESP32 WiFi connectivity & control
Distance & hole detection sensors
T3A83RGB LED ring system
WS2811S LED drivers (6 LEDs each)
Automated scoring & tracking

Technologies:

ESP32 WS2811S Sensor Array Game Logic
Automated Dispensing System - Top View Automated Dispensing System - Bottom View
Industrial Automation 16-Channel

Multi-Channel Dispensing Controller

Industrial automation system for precise chemical dispensing and mixing operations. Features 16-channel stepper motor control, Bluetooth monitoring, and programmable timing sequences for commercial applications requiring consistent formulation accuracy.

ATSAMD51N19A main controller
ESP32 Bluetooth monitoring
TMC2209 stepper motor drivers
16 independent mixing channels
Programmable timing & scheduling

Technologies:

ATSAMD51 TMC2209 Industrial Control Process Automation
Pharmaceutical Blender Controller - Top View Pharmaceutical Blender Controller - Bottom View
Pharmaceutical Speed Control Display

Pharmaceutical Blender Controller

Precision speed controller for pharmaceutical blending equipment with dual-speed and variable-speed models. Features encoder feedback, SSR power control, and integrated display for accurate process monitoring and control.

PIC18F23K22-I/SS controller
Encoder speed feedback system
SSR power switching control
Potentiometer speed adjustment
Status & speed display

Technologies:

PIC18F23K22 Encoder Control SSR Switching Process Control
Multi-Channel Drone Battery Charger - Top View Multi-Channel Drone Battery Charger - Bottom View
Drone Tech 10-Channel WiFi Remote

10-Channel Drone Battery Charger

Professional-grade multi-channel battery management system for drone fleet operations. Features independent charge/discharge control, comprehensive battery protection, variable speed charging, and WiFi connectivity for remote monitoring and control.

10 independent charging channels
BQ7692000/BQ76200 battery protection
ATSAMD21J15B per-channel control
BQ24780SRUYR charging ICs
ESP32 WiFi monitoring & control

Technologies:

ATSAMD21J15B BQ24780S Battery Protection Fleet Management
Drone Show LED Controller - Top View Drone Show LED Controller - Bottom View
RGB Control High Power RF Sync

High-Power LED Drone Controller

Specialized LED control board for aerial light show applications. Features three high-power RGB LEDs with precision driver control, RF communication for ground coordination, and Pixhawk integration for synchronized display sequences.

3x JH-9RGB14G45 high-power LEDs
AL8860 precision LED driver
RF transmitter for ground coordination
Pixhawk flight controller interface
Synchronized color coordination

Technologies:

AL8860 RF Communication High Power LED Show Control
Drone Power Monitoring Board - Top View Drone Power Monitoring Board - Bottom View
Power Monitor Current Sense Telemetry

Drone Power Monitoring System

Critical power monitoring board for drone show fleet management. Provides real-time battery status monitoring with current sensing and voltage measurement, transmitting telemetry data to base station for flight safety and performance optimization.

ZXCT1107SA-7 current sense amplifier
Precision voltage divider monitoring
Real-time battery status tracking
Base station telemetry transmission
Integrated drone stack interface

Technologies:

ZXCT1107SA Current Sensing Power Analytics Fleet Monitoring
Industrial Flash Controller - Top View Industrial Flash Controller - Bottom View
Machine Vision High Voltage Precision Flash

Machine Vision Flash Controller

High-voltage capacitor discharge system for industrial machine vision applications. Features precise timing control, variable voltage regulation, and configurable pulse parameters for optimal illumination during image capture processes.

PIC16F15276-E/PT controller
LT3751EUFD capacitor charging
LTC7106EDDB variable voltage control
DIP switch pulse configuration
Safety discharge protection

Technologies:

PIC16F15276 LT3751 High Voltage Vision Systems
Industrial IoT Gateway - Top View Industrial IoT Gateway - Bottom View Wireless Transmitter - Top View Wireless Transmitter - Bottom View
Industrial IoT Cellular LoRa

Concrete Industry IoT Network

Complete wireless monitoring solution for concrete industry applications. Gateway features multi-connectivity (cellular, WiFi, Bluetooth) with solar charging capability. Remote transmitters provide sensor interfacing with LoRa network communication for comprehensive data collection.

ATSAMD21G18A & ESP32 controllers
BG95M3LA cellular + LoRa network
BQ25185DLHR solar charging system
OTA updates & cloud portal
Local data storage & RTC timing

Technologies:

ATSAMD21 LoRa Network Cellular IoT Solar Power

More Projects Coming Soon 3

More Projects Coming Soon 4

More Projects Coming Soon 5

More Projects Coming Soon 6

Track Record

Proven results from 5+ years of independent consulting

1,250+
Consulting Hours
100+
Projects Completed
98%
Upwork Success Rating
5
Years Independent
View Upwork Profile

About Greg Girard

Hi there! I'm Greg, an electrical engineer with a passion for electronics and innovation. I hold a Bachelor's degree from Kettering University in Flint, Michigan, and a Master's degree from Wayne State University in Detroit, Michigan, both in electrical engineering. I also earned a Graduate Certificate from Washington University in Real Time and Embedded Systems.

Since 2017, I've been providing independent consulting services, and for the past 5 years, I've been fully dedicated to helping clients bring their electronic products to life. I'm a hands-on tinkerer who loves working on challenging projects, from concept development all the way through to production.

I provide full-circle product development services and have successfully launched over 20 production products. My workshop is equipped with essential tools including a 3D printer, reflow oven, and comprehensive lab equipment for programming and debugging hardware.

I'm available for direct consulting (fully insured with professional contracts) or through platforms like Upwork. I believe in building lasting relationships with clients and providing exceptional value through quality work and reliable service.

Education

Master's in EE from Wayne State, Bachelor's from Kettering University

Experience

5+ years independent consulting, 100+ completed projects

Recognition

98% Upwork success rating, 3 patents, certified instructor

Service

Fully insured, professional contracts, global availability

Professional Electrical Engineering Services in Michigan

As a licensed electrical engineer consultant based in Grand Blanc, Michigan, I provide comprehensive embedded systems design and IoT development services to clients across the United States and internationally. My expertise spans microcontroller programming, PCB design, circuit development, and complete product development lifecycle management.

Specialized Engineering Consulting Areas

With over 15 years of electrical engineering experience, I specialize in embedded systems architecture, wireless communication protocols (WiFi, Bluetooth, Zigbee, LoRa), and IoT device development. My consulting services include PCB layout optimization, microcontroller selection and programming, sensor integration, and prototype development using industry-standard tools like Altium Designer and Fusion 360.

Why Choose a Michigan-Based Engineering Consultant

Local Michigan businesses benefit from face-to-face consultations and rapid prototype development using my on-site equipment including reflow oven and 3D printing capabilities. I maintain professional engineering insurance and provide detailed contracts for all consulting engagements, ensuring complete project transparency and accountability.

Get In Touch

Ready to start your project? Let's discuss how I can help bring your ideas to life.

Request a Free Quote

Free quotes, referral perks, and complementary consultation hours available!

Contact Information

Email

greg@gregtronics.com

Phone

(810) 882-1119

Address

Gregtronics LLC
12745 S Saginaw Rd, Suite #806
Mailbox #388
Grand Blanc, MI

Why Choose Gregtronics?

  • Fully insured and professional
  • 98% success rating on Upwork
  • Fast turnaround with quality results
  • Complete product development lifecycle
  • On-site prototyping capabilities