SERIES_01CYBERSECURITY / LINUX
OverTheWire
Bandit Walkthrough
Each entry explains the level goal, investigation, working command, Linux concept, and a way to verify the result.
- DraftOverTheWire Bandit: A Better Way to Document the Journey
Field notes / reproducible methods
Linux Walkthroughs and Engineering Tutorials
I document the commands, design decisions, tests, and failure modes behind embedded systems, Linux, cybersecurity, Flutter, and AI work.
Follow a subject from the first lesson
Choose the Bandit walkthrough or a Learn With Me track. Drafts stay marked as drafts until the complete article is public.
SERIES_02FOUNDATIONS / BUILDING
Learn With Me
Core tools for engineering work
Connected lessons build useful habits in Linux, Python, Dart and Flutter, and Git.
01Planned
Linux
Shell use, permissions, processes, networking, and system troubleshooting.
No public lessons yet.
02Planned
Python
Programming foundations, automation, data work, and engineering scripts.
No public lessons yet.
03Planned
Dart / Flutter
Dart foundations and Flutter interfaces for mobile and connected products.
No public lessons yet.
04Planned
Git
Version-control habits, safe recovery, branches, and team workflows.
No public lessons yet.
05Planned
Electronics
Digital logic, circuit analysis, PCB concepts, and hardware experimentation.
No public lessons yet.
06Planned
Cyber Security & Information Security
Cybersecurity concepts, information security practice, and legal challenge labs.
No public lessons yet.
07Planned
Image Processing, ML & AI
Image processing pipelines, machine learning experiments, and AI-assisted engineering.
No public lessons yet.
Published engineering notes
Search published articles by subject, tool, or category.
Editorial queue / evidence first
Planned field notes
Questions worth answering with calculations, project evidence, and reproducible tests. Cards become articles only after the answer is complete.
How do you turn an embedded idea into a testable first prototype?
A practical path from requirements and signal flow to a bench prototype, with checkpoints for interfaces, power, firmware, and evidence.
- For
- Engineers planning a first hardware build
- Evidence
- Ahmed's embedded product and teaching projects
Which ESP32 architecture fits an IoT product beyond the demo stage?
A decision guide for connectivity, provisioning, storage, updates, and failure recovery before an ESP32 prototype becomes a maintained product.
- For
- IoT developers moving from proof of concept to product
- Evidence
- Connected-device, OTA, and ESP32 project records
What should you check when a satellite link budget has no margin?
A trace through EIRP, path loss, antenna gain, system noise, bandwidth, and required Eb/N0 that shows where a weak link actually loses margin.
- For
- RF students and engineers reviewing a link
- Evidence
- The site's RF and satellite calculation engines
How do you make a wireless ROV control loop fail safely?
A system-level review of command loss, stale telemetry, motor authority, emergency states, and the tests that expose unsafe assumptions on the bench.
- For
- Robotics teams building remote vehicles
- Evidence
- Wireless ROV prototype, mechanical design, and published research
When should an image-processing pipeline use classical vision instead of ML?
A comparison based on data volume, explainability, latency, lighting variation, maintenance cost, and the failure cases each approach handles well.
- For
- Engineers choosing a vision approach
- Evidence
- Applied vision research and model-generation tools
How can an engineering calculator teach the model behind the answer?
A design method for inputs, assumptions, diagrams, sensitivity, units, and interpretation so a calculator improves judgment instead of returning one unexplained number.
- For
- Engineering educators and tool builders
- Evidence
- The portfolio's calculator and workbench design system