MEMS inertial drift characterization
ESP32 and MPU6050 strapdown arrays: quantifying bias, noise floor, and drift before Kalman integration. Anchored in Woodman (2007), ARL, and DARPA INS literature. Feeds the navigation module directly.
Ellis Dynamics
The vision of Ellis Dynamics is to bridge precision automotive engineering with high reliability countermeasure hardware, ranging from advanced low voltage electronics and ECU tuning for performance vehicles to ECCM and predictive detect and track systems for contested environments. As a student led venture grounded in embedded electronics and hardware testing, the company is actively executing on plans to deliver modular, state of the art hardware that guarantees deterministic control when standard systems fail.
Automotive Services · Near USF Tampa
Mobile Mechanic Mobile auto repair and diagnostics near the USF Tampa campus.
Maintenance, diagnostics, repairs and upgrades performed where your car already is. Home, campus, or work.
No shop drop off. No waiting around. Book the work, I come to the vehicle, and you come back when it's finished.
Hours
Mon to Thu5 PM to 9 PM
Friday5 PM to midnight
Saturday7 AM to 10 PM
Sunday7 AM to 6 PM
Service area
Within about ten miles of the USF Tampa campus. University area, Temple Terrace, New Tampa and Tampa Palms.
336203361233613
336173363733647
Labor warranty
Seven days. If something I touched isn't right, I come back and fix it free.
Parts are yours, so their warranty is whoever you bought them from.
Booking
Message me with the problem and I'll quote it. Once the price is agreed, a $50 deposit holds the slot and comes straight off your invoice. It isn't a fee. It's the first $50 of the job. A standalone Level 1 inspection is $50 on its own.
Cancel more than 24 hours out and the deposit comes back in full. Inside 24 hours it becomes credit toward a rebooking, so you still don't lose it. If I move the date for any reason, weather included, you get it back.
USF student sale
You cover the parts. I handle the work.
Valid USF ID at the appointment. $10 an hour on qualifying labor, one hour minimum.
Oil change, worked through
Regularparts $50 to $65 plus $20 labor$70 to $85
USF studentparts $50 to $65 plus $10 labor$60 to $75
Every repair and maintenance job below includes the relevant Level 1 checks at no extra charge, plus any Level 2 checks that bear on it. Find low oil during a change and the underbody gets looked at for leaks, not just topped up.
Inspections & diagnostics
Level 1 · Essential
$50A broad health and diagnostic inspection without raising the vehicle. Finds common maintenance needs, visible problems and basic electrical or drivability concerns.
What gets checked16 items
- OBD2 code scan and warning light review
- Live data review where applicable
- Battery condition, terminals, resting voltage
- Charging system voltage
- Brake pad and rotor condition
- Tire pressure, tread, wear pattern, damage
- Engine oil level and condition
- Coolant level and condition
- Brake fluid level and condition
- Transmission, power steering and washer fluids where accessible
- Engine and cabin air filters
- Visible belts and hoses
- Engine bay checked for obvious leakage
- Exterior lights, horn, wipers and washers
- Basic HVAC operation
- Accessory function relevant to a reported concern
You get a written summary marking every item Good · Monitor · Service recommended · Immediate attention.
Level 2 · Comprehensive
$75Everything in Level 1, plus the vehicle is safely raised for a detailed mechanical and underbody inspection. This is also where symptom led troubleshooting goes when a concern can't be settled from above.
Added on top of Level 119 items
- Engine oil leak tracing
- Transmission and drivetrain leak inspection
- Cooling system leak inspection
- Oil pan and transmission case condition
- CV axles and boots
- Wheel play and bearing concerns
- Tie rods and steering linkage
- Ball joints, control arms and bushings
- Sway bar links and related components
- Shock and strut condition
- Visible engine and transmission mounts
- Calipers, brake hoses and lines
- Underbody brake fluid leakage
- Exhaust piping, hangers and mounts
- Underbody damage and corrosion
- Inner tire wear you can't see from above
- Suspension noise investigation
- Starting, charging, electrical or drivability troubleshooting
- Road test where necessary and safe
Buying a car · USF students only
Digital listing review
Send me a Marketplace listing. I'll read the description, the seller's claims and the
photos, flag the warning signs, and give you the questions to ask and what to look at in
person. It's a listing review, not an inspection.
Free
In person check before you buy
A low cost look at the actual car before you hand over money.
$20
Routine maintenance
Oil & filter service
Typical parts $50 to $65, about $70 to $85 all in$20 labor
Tire rotation, four wheels$35 labor
Engine air filter$35 labor
Cabin air filter$35 labor
Battery replacement
Includes terminal and charging system checks$35 labor
Spark plugs
Accessible engines. Awkward ones quoted$50 labor
Ignition coil$35 labor
Serpentine belt
Includes tensioner and pulley inspection$65 labor
Throttle body / MAF service$55 labor
Every price above is labor. Parts are additional and you buy them.
Fluid services
Coolant drain & fill
Includes visible leak and hose inspection$50 labor
Transmission drain & fill
Supported transmissions only, manufacturer fluid and procedure$85 labor
Brake fluid is checked at Level 1 and inspected further at Level 2 and during brake work. It isn't bundled into every brake job. If replacing it is the right call, it gets quoted with your brake service.
Brakes
Brake pads, per axle
Rotors, calipers, slide pins, hardware, hoses and fluid all inspected$90 labor
Pads and rotors, per axle
Includes road test where appropriate$130 labor
Caliper replacement, each
Includes the hydraulic work and bleeding. Seized or heavily corroded systems requoted.from $75
Starting & charging
Alternator
Charging system verified before and after$70 labor
Starter
Varies where major component removal is needed for accessfrom $100
Cooling system
Thermostat
Includes refill and leak checkfrom $100
Radiator
Includes refill and cooling system inspectionfrom $150
Suspension & chassis
Sway bar end links, per axlefrom $90
Shock or strut, each
Supported configurations onlyfrom $120
Wheel hub assembly, bolt in style, each
Bolt in style only. Press fit bearings aren't offered yetfrom $140
Lighting & basic electrical
Bulb replacement
Accessible exterior or interior bulbsfrom $25
Headlight assembly
Standard bolt in housings. Jobs needing the bumper off are quotedfrom $75
Appearance
Headlight restoration, per pair
Oxidation removal, polish and protective finish$40
Custom electronics & aftermarket · quote only
Difficulty swings too far between vehicles and installation methods for a flat rate to mean anything. Send me the year, make, model and the exact equipment you want fitted, and you get a real number.
- Dash cameras, hardwired or plug in
- Backup cameras
- Head units and radios
- CarPlay and infotainment upgrades
- Speakers and amplifiers
- Accessory and interior lighting
- Auxiliary electrical accessories
- Custom low voltage wiring
- Switches, relays and fused circuits
- Power distribution
Happy to take on
- Everything in the catalogue above
- Custom low voltage and aftermarket electrical, quoted per job
- Parts sourcing. Tell me the car and what's missing, I'll find it
- Problems nobody else has managed to pin down
Not yet · the equipment isn't there
- Engine or transmission removal, rebuilds, and clutch work
- Tire mounting, balancing and wheel alignment (rotations, yes)
- Press fit wheel bearings
- Spring compression work, including lowering springs
- Trucks and heavy vehicles needing lifting or underbody access
- Airbag, seat belt pretensioner, hybrid and EV high voltage work
- ADAS calibration and key or immobilizer programming
- A/C refrigerant service (operation can be checked, but recovery and charging wait on certification)
- Welding and fabrication (coming, not yet)
I'll still find these faults and tell you exactly what's wrong. Finding it doesn't mean I'll pretend I can fix it.
What I need on site
- Flat, hard ground. A driveway or parking space, not grass or a slope
- Room to open both doors and work at one side of the car
- Weather that lets me work safely. Heavy rain or lightning and we move it a day, no charge and no argument
- Somewhere the complex or HOA actually allows repairs. Worth a check before we book
01DM me the year, make, model, what it's doing, and your ZIP
02You get a price and a time back inside my hours. Nothing is touched before you agree it
03A $50 deposit holds the slot and comes off the total. I come to the car, you cover parts, labor is the fixed price above, or $10/hr with a USF ID
Message @ellisdynamics
Fastest way to reach me ↗
Put this in the first message
- Year, make and model
- Your ZIP, and where the car is parked
- What it's doing. Symptoms, warning lights, anything you've already tried
- Whether you're a USF student, so I quote you the right rate
- Roughly when you're free, so I can fit it into the evening
That's it, no forms. I'll come back with a price and a time before anything gets touched. Not on Instagram? edon4585@gmail.com reaches me just as well, only slower.
- Reply time
- Same day, during hours. Message any time. I answer inside the hours listed above.
- Payment
- Cash · Cash App · Zelle · Apple Pay. Due when the job's done.
- Elsewhere
- Build photos and finished work go up on Instagram.
@ellisdynamics ↗
Ahead
Where the shop is headed.
Complex electrical architecture and control systems standard repair shops can't touch.
Custom electrical integration
Spec built wiring harness design and IPC compliant fabrication. Aftermarket sensor and module integration, custom CAN bus data displays, and OEM feature retrofits engineered for long term reliability.
Data driven calibration & tuning
3D fuel and ignition map calibration, boost target control, and transient response tuning. Optimized strictly through wideband AFR logs, knock spectrum analysis, and telemetry. Never by ear.
EV & hybrid systems
Low voltage control architecture diagnostics, Battery Management System telemetry integration, charging equipment installation, and custom EV powertrain conversions.
Division 02 · Research & Development
When GPS is jammed and communications are disrupted, tactical platforms must still navigate, coordinate, and track threats. Ellis Dynamics builds hardware validated countermeasure systems, claiming only capabilities that have been proven on the bench.
Inertial navigation & ECCM
Inertial dead reckoning hardware built on an ARM Cortex M4. It carries a six axis IMU integrated over high speed SPI and I²C on a custom four layer PCB flight controller.
ACTIVE BENCH BUILDHardened data links
Resilient communications architecture designed to maintain telemetry and coordination links under active RF jamming.
ADVANCED R&DPredictive target tracking
Multi sensor fusion across EO and IR with precision feedforward gimbal control, providing the foundational tracking layer for counter UAS platforms.
SYSTEM DESIGN
01
Modular Inertial Navigation Unit (INU)
Standalone inertial dead reckoning hardware that keeps platform position awareness through complete GPS denial.
02
Two Axis Predictive Tracking System
Extended Kalman Filter state estimation integrated with a high torque two axis gimbal for feedforward target tracking with no lag.
03
Integrated Countermeasure Architecture
Inertial ECCM navigation and predictive optical tracking combined into one physical payload for platform testing.
Program and partnership inquiries: edon4585@gmail.com
Engineering Record
Bench built, documented.
Secure IIoT grid edge monitor
THD detection by FFT in under 100 ms, holding below 3% RMS error. AES 128 and MQTT TLS 1.2 telemetry validated end to end against NERC CIP guidance.
Smart load shedding controller
PWM trip logic holding stability within 10% of peak capacity. Active RC filtering cut noise 35%, validated on digital oscilloscopes.
Enterprise infrastructure lab
Proxmox and pfSense multi tier lab. MATLAB load flow cut modeled restoration time 22%, with cascading failure modeling across 500 outage scenarios.
Tactical communications hardware
IPC A610 Class 3 harness fabrication, EMI shielding, and fault isolation at Orbital Corporation. Production grade hands on the physical layer.
National security ecosystem
Pentagon, Capitol Hill, CNAS. More than fifteen senior officials including a former DIA Director, and the institutional context this hardware has to survive.
Founder
Dontavious Ellis. B.S. Electrical Engineering, University of South Florida, expected May 2028. Tactical communications hardware at Orbital Corporation. Wrenching on his own cars since high school.