Wirely 1.5.0 — new parts, a unit box for values, and readings you can move

Wirely 1.5.0: new parts, a unit box for values, and readings you can move. Plus a big round of bug fixes, found by checking every example step by step and testing every part in thousands of random circuits.

Use it in your browser — nothing to install

https://richiewillmott.github.io/Wirely/ — works on Chromebooks, and in Chrome, Edge, Firefox and Safari on any computer. It updates by itself.

Downloads (desktop app)

• Windows (64-bit): Wirely-Setup-1.5.0.exe — run it; it updates an existing Wirely. If SmartScreen warns you (the installer isn't code-signed yet), click More info → Run anyway.
• Mac (Apple Silicon): Wirely-1.5.0-mac-arm64.dmg — open it and drag Wirely into Applications, replacing the old one. The first time, right-click Wirely → Open → Open.
• Linux (x86_64): Wirely-1.5.0-x86_64.AppImage — run chmod +x Wirely-1.5.0-x86_64.AppImage, then run it.

New

• A unit box next to values: double-click a resistor and there's Ω / kΩ / MΩ beside the number; capacitors have pF / nF / µF, inductors µH / mH / H, and frequencies Hz / kHz / MHz. Typing the whole value (4k7, 100n) still works.
• Move a reading out of the way: drag any reading label to wherever it's clearest. A dashed line shows which wire or part it belongs to.

New parts

• Crystal clock — an exact clock for logic circuits, unlike a 555.
• Stepper motor — turns one step at a time; drive it with an L293D and watch the shaft turn.
• Rotary switch (click to turn it) and a 12-key keypad (hold down a key), wired as rows and columns like a real one.
• JK flip-flop (4027) and Schmitt NAND gate (4093).

New examples

Stepper motor (crystal clock + L293D), Keypad (which key is pressed), Binary counter (JK flip-flops), Schmitt NAND flasher (4093) and Rotary switch (pick an LED).

Fixed

• Wire currents next to 0 V symbols — when you hover, in Readings, and in the flow dots — could be wrong (for example 7.3 mA instead of 14.8 mA in the Night light example). Part readings and voltages were always right.
• Readings at the moment something switches: regulators, 555s, logic chips, relays and motors showed the wrong current for an instant when they switched.
• A thyristor now switches a relay on: it used to let go while the coil's current was still building up.
• Chips and displays now show their power in Readings instead of 0 W.
• Wiring mistakes no longer freeze the simulation: a voltage regulator wired the wrong way round, a TL431 upside down, an op-amp with its output held outside its supply, or a burnt-out thyristor.
• More realistic failures: an op-amp on a reversed supply is destroyed, a thyristor with its gate wired straight to the supply burns out (and tells you to add a gate resistor), and a reversed regulator leaks back from OUT to IN like a real one.
• Counters and flip-flops start from 0: an input that's simply high at switch-on no longer counts as a clock pulse.
• Tidier labels when parts are turned round: names no longer sit on pins, and a chip on its side has its pin names running along the pins.

406 automatic tests check Wirely against hand calculations, datasheets and ngspice — and the browser version is tested in a real browser before it goes live.

Free and open source under the GNU GPL v3. Bug reports, ideas and part requests are welcome on the Issues tab.