In the toolbox

The tools you need to build your own smart home devices, from the essentials to the nice-to-haves.

Updated November 2026

What to have on the workbench

Start with the essentials: they cover most beginner projects. Add the optional tools when your projects need them.

Essential for soldered builds€25–80

Temperature-controlled soldering iron

For soldering wires, pin headers and components to circuit boards. Pick one with adjustable temperature and a stand; a fine conical or chisel tip covers most jobs.

Essential€15–50

Digital multimeter

Checks voltage, resistance and continuity, so you can find a wiring mistake before it costs you a board.

Essential€20–60

Precision hand tools

Small screwdrivers, side cutters, wire strippers, pliers and tweezers for working with tiny parts.

Essential for prototyping€5–15

Breadboard and jumper wires

Lets you test a circuit without soldering anything. Once it works, you move it to a permanent build.

Essential

Wire cutter

Flush cutters snip component legs and wires cleanly, close to the board.

Optional€40–120

Adjustable bench power supply

Gives a controlled low voltage and limits the current while you test, so a short circuit doesn’t destroy your parts.

Optional€180–400

3D printer

Prints custom sensor housings, wall mounts and enclosures. See 3D printing & enclosures.

Optional

Hot glue gun

Fixes boards and cables in place inside a casing and relieves strain on wires. Not for parts that get hot.

Prices are indicative ranges for a decent hobby-grade tool, not a quote; they vary by shop and country. We don’t recommend specific brands here. Drawings are illustrations.

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