Embedded · Electronics
An 18-topic roadmap study log adding a hardware axis to a web full-stack profile
Working at a satellite company, you keep meeting the hardware beneath the software — motor control, inverters, MCUs. I picked embedded as the next full-stack extension, and I'm filling an 18-topic roadmap from circuit basics to control theory, scaffolded by a hands-on e-kickboard project (STM32 · 3-phase inverter · BLDC).
Lectures and textbooks get decomposed through AI dialog, then compiled into the Brain Trinity wiki — down to a routine of transcribing lecture recordings into wiki pages. Same pattern as the SAR study.
- 2026.06 – 07In progressPrerequisites18 circuit-theory topics + C refresher
- 2026.08 – 10On the roadmapMain course — kickboard projectSTM32F767 · 3-phase inverter · BLDC · 4-layer PCB
- 2026.11 – 12On the roadmapConsolidate & evidenceWiki cleanup + portfolio integration
When I studied what — dated by when each wiki page was created or each lecture recorded. Tap an active day to see that day's topics.
Circuit basics (#1–6)
Where every calculation starts — Ohm, Kirchhoff, dividers.
Voltage as pressure, current as flow, resistance as a narrow pipe — intuition first, then motor-coil/LED/shunt calculations. Ignore wiring resistance and it comes back as heat.
Current conserved at nodes (KCL), voltage conserved around loops (KVL) — the basic tools for tracing battery→3-phase distribution and MOSFET driver voltages.
Voltage shaved off by V=IR across each part — drops in wiring, MOSFET Rds(on), shunts and battery internal resistance turn into heat and lost output.
Up next — the block's remaining topics, leading straight into practical work like the battery ADC divider (32–45 V → 1.8–2.6 V).
Components (#7–11)
The component map that makes schematics readable.
From the 940 µF electrolytic at the kickboard input to the 0.1 µF MLCC at the IC power pin — decoupling vs bypass, RC filter fc=1/2πRC, and impedance turning inductive past resonance.
Compiled from the course's 71-page section 3 — resistors, capacitors, inductors, five diode types, BJTs, the MOSFETs at the heart of a 3-phase inverter, and buck/boost supplies on one map.
A component that resists current change via back-EMF. The same inductor stores energy as a power inductor (½Li²) but, as a ferrite bead, acts like a resistor at high frequency to burn noise off as heat. A transformer's real value isn't the turns ratio — it's electrical isolation.
Peeling one component at a time off the map — five diode types, BJTs, and practical numbers like the switching losses of the MOSFETs at the heart of the inverter.
Power & drive (#12–14)
The circuits that actually spin the motor.
Half/full bridges and PWM duty to shape power, a buck converter to step down — the skeleton of inverter hardware.
Control (#15–18)
Making the spinning motor do what you want — control theory.
Feedback loops, PID gains, steady-state error and overshoot, through 6-step commutation — the final block that makes the kickboard roll.
Scaffold project — e-kickboard embedded
The scaffold the theory hangs on — a hands-on project where a real kit ends up rolling.
A 153-lecture · 16.5 h hands-on course — hardware to firmware on an in-wheel motor kit
The full cycle from inverter hardware design to PCB layout to assembly
Collected PDFs and lecture transcripts live in Brain Trinity raw; distilled concepts accumulate in the wiki