Choose tools by goal, not by subject.
Each path is a string of ready-to-use tools — just click left to right. The ones tagged Series are connected learning chains, where each step's output feeds straight into the next.
A Light it up
Drive your first LED without burning it out, and read off its resistance.
View the guided track →B Passive combos
How resistors and capacitors combine in series/parallel, how fast they charge and discharge, and where they resonate.
C Prototype to board
How wide your traces, how big your pads, and whether your wire gauge is enough.
D Wiring & pinouts
Look up chips, headers, and network cables to wire them right — and don't mismatch logic levels.
- IC Pinout Series ★
- Raspberry Pi GPIO Pinout
- USB Connector Pinout
- Ethernet RJ45 Wiring (T568A/B)
- Logic Level Voltage Reference
E Combinational logic Series
From truth table to minimal circuit — simplify it all in one pass.
- Number Base Converter
- Logic Gate Truth Table Generator
- Karnaugh Map Solver
- Boolean Algebra Simplifier
- Minterm / Maxterm Expander
F Sequential logic Series
From a single flip-flop, build up to counters, registers, and state machines.
View the guided track →G Choose & source parts
Compare candidate ICs on the facts, weigh the trade-offs, total the BOM, and check a board house can build it.
Want to see everything? Head back to the tool overview and search directly, or browse the IC pinout reference series.