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Practical ToolsšŸ”—

The topic articles teach electronics; these pages cover the equipment used along the way. They're a reference shelf rather than a course: read each one when a project first needs it.

Practical Tools and multimeter settings, as a transit map Two separate lines: the tool articles, and the multimeter settings. On the shelf: Breadboards, arduino-cli, Multimeter, Bench Supply, Soldering; Multimeter settings, taught in Circuit Foundations: Voltage, Current, Resistance, Continuity. Every stop is a link to its article. Click any stop to open it On the shelf Multimeter settings, taught in Circuit Foundations Breadboards Breadboards arduino-cli arduino-cli Multimeter Multimeter Bench Supply Bench Supply Soldering Soldering Voltage Voltage Current Current Resistance Resistance Continuity Continuity
The tool articles, and the four multimeter settings taught inside the Circuit Foundations articles. Every stop is a link.

On the ShelfšŸ”—

  • Breadboards ā€” how the holes connect inside, how the power rails work, and the wiring mistakes that stop a first circuit before it starts
  • arduino-cli ā€” compiling and uploading Arduino code from the command line, and reading the board's serial output
  • Using a Multimeter ā€” why the jacks matter more than the dial, what the fuse and CAT rating protect, ranges and accuracy, and choosing a meter
  • Bench Power Supplies ā€” constant voltage, constant current, the crossover, a safe first power-up, and reading the spec sheet
  • Soldering ā€” why solder bonds only to clean, hot metal, judging a joint, choosing solder and temperature, desoldering, and fume and lead safety

The multimeter page covers the meter itself; each measuring article in Circuit Foundations teaches its own setting: voltage, current, resistance, and continuity.

Where to StartšŸ”—

Building your first circuit? Start with Breadboards. Ready to program a board? arduino-cli gets your first sketch onto it. Bought a meter? Read Using a Multimeter before its first measurement.