Engineer-A-Car is where I design, build, and document automotive embedded systems — from sensor integration to cloud-connected vehicle platforms.
I'm Halldór Stefánsson, a software engineer with a mechatronics background and 10 years of experience building backend services, microservice architectures, and integrations across industries in the UK, Iceland, and Italy.
Now I'm focused on automotive embedded systems — bridging the gap between vehicle hardware, embedded software, and cloud infrastructure. I believe the best way to understand complex systems is to build them, so that's what I do here.
What You'll Find Here
Automotive fundamentals: How engines, electrical systems, brakes, and other vehicle systems actually work
Embedded systems tutorials: Microcontroller architectures, communication protocols (I2C, SPI, UART, CAN), sensor integration, and hardware/software co-design
Hands-on projects: Step-by-step builds with code, schematics, and component selection — from simple Arduino cars to complex connected vehicle platforms
MGB build series: Regular updates on designing and building modern systems for my 1972 MGB GT, including technical challenges, design decisions, and lessons learned
Who This Is For
If you're:
- An engineer wanting to understand automotive systems
- Building IoT or embedded projects involving vehicles
- Modernising a classic car with modern tech
- Curious about how vehicle electronics and software integrate
You'll find: Technical depth, working code, real-world examples, and honest assessments of what works (and what doesn't).
Work With Me
I'm available for remote consulting and contract work in automotive embedded systems, IoT platforms, and connected vehicle development.
Thanks for reading. Let's build something interesting.
— Halldór