Changelog

What’s new in BBRouter, newest first.

v0.58 October 30, 2026

A new address

BBRouter now lives at bbrouter.com. Old links keep working: they take you to the same page here. A passkey works only on the address it was made on, so add yours again from your account’s settings.

The schematic

The schematic and the board keep each other in step. A part added on the board appears on the schematic near where it sits; a part deleted goes from both. A symbol added on the schematic becomes a part floating beside the board until you plug it in; a symbol deleted leaves its part on the board tinted red, with Restore on schematic and Remove from board in its details. Renaming a net on either side renames it on the other, and wiring drawn on the schematic updates the board's netlist without touching a single part or wire. Import from board is gone: a board gets its schematic drawn the first time you open the view.
Clicking a schematic wire selects the whole run, up to a junction, a pin or a label; shift-click adds runs, a double-click selects the whole connection. Wires drawn over each other now fuse into one, as in KiCad.
A sheet's pins can be placed by hand: drag one along the box's edges or round a corner, give it a shape (input, output, bidirectional, tri-state, passive) and order the pins from the details.
Write ~{OE} and the name reads OE with a bar over it, KiCad's way, on labels, pin names, texts, the board's wire stickers and in the exports.
Hovering a wire names its net, as clicking it does. Wires that reach their net only through a sheet's box said "not connected", and the hover now counts the net's pins on every sheet.
Turning or flipping a symbol keeps its wires on its pins: a wire that only touched a pin was left behind, and the connection lost.
A chip's power pins can sit on the top and bottom of its symbol, as KiCad draws a 555: VCC above, GND below, the other pins closed up on its sides. New chips are drawn that way unless you turn it off; any chip switches either way from its details or its right-click menu, or every chip on the sheet at once, its wires kept on its pins.
Dividers: draw thick grey lines that split a sheet into regions, as Ben Eater's schematics do, each with a big grey title. The Divider tool (I) puts a corner at each click; a double-click or Enter ends it. Any text can also take the new Title size.
Reading the nets from the wiring (or moving a pin to another net in the Netlist panel) updates the schematic only where something changed: a pin that changed net loses its wire, up to the next junction, and gets a label of its new net; everything else stays as you drew it.

v0.57 October 29, 2026

The breadboard

New breadboards and power rails are BusBoard BB830s: row A on the far side, column 1 on the right, black negative lines. Projects you saved keep the print they had.
A new project starts ready to build on: a BB830, a 5 V supply on its rails, and the rails joined top to bottom with solid-core wire.

Parts

Find a part by its model: type 2222, pnp, 1n4001, zener 5.1 or green led in the library's find box or in ⌘K, and pick the part up already set to it.
A transistor's flat face now faces you and reads its number over its type (2N2222, NPN), as a real TO-92 does.
A label beside an LED module rests on the module's resistors instead of being cut through by them.

Simulation

Transistors drop volts as real ones do: about 0.7 V from base to emitter and 0.2 V from collector to emitter when on. An emitter follower's emitter sits 0.7 V under its base, a switched-on collector 0.2 V off its emitter, and stacks add up. LEDs behind a transistor draw their current from the real voltage, and the probe, the scope, an Arduino's analogRead and the logic-level warnings all see it.
An LED with no current through it is dark: a red LED on a 2 V supply, or behind 10 MΩ, no longer glows.
The schematic is a quiet place: opening it pauses the circuit and hides the simulation's controls, the power pill included; back on the board they return, and the circuit resumes if it was running.

Import

CRUMB saves open as projects: Import… or drop a .cru file (CRUMB 1.3) on the editor. Its breadboards, wires, resistors, LEDs, diodes, chips, displays, switches and supplies come in on the holes they snap to; a part BBRouter doesn't have yet is marked at its place and listed in the import's notice. CRUMB 2 saves are told apart and refused for now.

Projects

A project's picture (on Your projects, your profile and share cards) is drawn with nothing selected: what you had selected when you left no longer shows tinted in it.

Your AI

create_project takes a CRUMB save; simulate reports the volts of the holes it reads high or low.

v0.56 October 26, 2026

The schematic

Logic chips draw as their gates, KiCad's multi-unit symbols: a 74LS08 becomes U3A to U3D and a small power unit, each placed, turned, flipped and wired on its own, on any sheet. A chip switches between Whole chip and Gates in its details without losing a wire or a label; a gate you don't use is a spare, placed from any unit's details. Every quad, hex, triple and dual gate chip, open-collector, Schmitt and three-state buffers included.
A gate can take its De Morgan form (a NAND drawn as an OR with inverted inputs), hide when unused once its inputs are tied to GND or VCC, as a real build does, and the power unit can hide too, its pins joined to VCC and GND by name. A whole chip hides its power pins the same way.
Text on the sheet: T places a note where you click, double-click edits it, drag moves it, R turns it, in three sizes.
Labels move: drag a VCC or GND flag and its wire end follows; a label along a wire slides on it; a pin's label dragged off its pin takes a stub with it. A selected label shows it, and lights its whole net as hovering does.
Selecting a label or a wire opens the net's details: its name (type to rename it on every sheet), scope, colour, the pins on it, the sheets it reaches, Find on the sheet, Show on the board. The ground symbol says its net's name. The Net label tool keeps the net you picked in sight.
Show it on the schematic, from a board part's details: the way back from the board, selecting the part's symbol or all its gates.
The schematic exports as SVG (the sheet you're on) or PDF (every sheet a page), from the Make it menu.
Sheets are in the desktop + menu too, and inside a child sheet a bar names it, renames it in place and goes back to the main sheet. The schematic zooms to 16×, and a trackpad slide goes further the deeper you're zoomed.

The editor

Slow the simulation to 1/10, 1/100 or 1/1000, or step it one tick at a time, beside the Pause button; the scope and the displays follow.
Diodes: the 1N4148, 1N4001 and 1N5817 and five Zeners, simulated (diode-OR, diode-AND, a Zener clamp, and what burns). Five more 74LS chips: the 01 and 03 open-collector NANDs, the 83 adder, the 148 priority encoder and the 181 ALU.
analogRead reads a divider of fixed resistors, or a loaded trimmer, as its real voltage. The scope shows a 555's DIS and CTRL.
Warnings list what a real build gets wrong and the simulator forgives: a logic chip's unused inputs left floating (one click ties them to GND on the schematic), an LED with no resistor, a chip with no decoupling capacitor, a switch clocking a counter with no debounce, a reset pin on nothing.
The PS/2 keyboard, the servo, the oscillator, the Nano and the LCD say when they aren't on the supply, with Connect to power, as chips do.
Auto-route colours each wire by what it carries (power red and black, clock white, control blue, data yellow, address purple) and reroutes the wires that cross, a quarter fewer crossings on the 6502 sample.
The build sheet names a wire and its stickers. A public project's link pasted in a chat shows its own card. The History list has the scope's steps too. The guided build is called Build instructions.
The 3D view comes much closer, about four holes up the screen, zooming toward the pointer; a pan keeps the point under your pointer or finger with it, at any distance, instead of trailing behind.
A project is its own file: Export downloads it as a .bbr, Import opens one (a .json from before still opens). A KiCad schematic file is refused with the way to export its netlist, instead of importing as nothing.

Your AI

load_memory fills an EEPROM or a RAM a chunk at a time, with checksums, or copies a chip from another project.
simulate steps the circuit a given number of ticks; show slows, pauses or steps the circuit in your own tab.
read_project gives one net whole across the sheets, a chip's gate units and spares, and the sheet's texts; edit_project switches a chip between whole and gates, hides gates, places texts and moves labels; export_file writes the schematic as SVG or PDF; check_project lists the floating inputs and the real-build faults.
edit_project keeps every wire and label one edit makes (a piece split off a wire, a label added to keep a net) and moving symbols takes their wire ends along; export_file writes a .bbr.

On a phone

A selection's details fold into a pill at the top right, with Rotate, Delete, Select more, and a Cancel that ends whatever is under way. A tap selects, the next drag moves; a drag on anything else pans. The details sheet scrolls, the Net label tool is three short rows, the hints say tap, and Fit never shrinks a big sheet past reading.

Your account

Registering answers "Check your email" whatever the address, and the confirming link signs you in and brings you back where you were going; an address that already has an account gets an email saying so instead. Asking for a new password answers the same way either way.

Fixes

Select all, Cut, Paste on the board kept the nets but not their pins; a cut's paste keeps the references too.
An LED matrix dot dimmed with PWM showed full brightness; an RGB LED's green was lime.
An RC edge detector's node resting high pulsed about four times too long; a CD4098's timing curve vanished from the scope after a reload.
The buzzer's sound rings read as stripes from a low angle.
The Jumpers pane's Group menu didn't close on a click outside it; on a phone the account page scrolled sideways and a notice covered the projects card; the Arduino IDE's first request for the board index took six seconds.
A right or middle drag that starts on a virtual display pans the board instead of opening the browser's menu.
Two transistors in series as emitter followers (an AND) light their LED, as on a real board.
Side by side, Link cameras moves both schematics together, and the header's search, Keyboard shortcuts, Getting started and the Community menu's Bug report, Feedback and Feature requests reach the pane you last pressed in. Community's Support is called Bug report.

v0.55 October 25, 2026

The schematic

Hierarchical sheets, as in KiCad: press S to place a sheet box, double-click it to go in, the breadcrumb or ⌥⌫ to come back out, ⌘H or the Sheets button for the whole tree, Page Down and Page Up to step through. A box's pins are the hierarchical labels drawn inside it (H); global labels (⌘L) and power labels (VCC, GND, +5V, +3V3) join by name across every sheet; plain labels stay on their sheet. Boxes rename, rotate and flip, their wires following.
Wires reshape under the mouse: drag a segment sideways, a corner or a junction anywhere, with the rest following square. Drag a wire straight out of a pin, or out of its net label. A moved selection takes its junctions along.
Deleting a wire never changes the nets: labels appear where a net would otherwise lose its name. Deleting a part takes its wires with it, the far ends labelled. Only deleting a label changes the nets.
A wire joins other wires only where it ends, never along its way; ending one on another's middle splits it there with a junction dot. Older sheets open with exactly the nets they had.
KiCad's keys and gestures: left-drag box-selects (left to right takes what's inside, right to left what it touches); middle-drag, right-drag, space-drag or two fingers pan; right-click opens a menu instead of deleting; double-click opens a symbol's details. R turns counter-clockwise and ⇧R the other way; X flips left to right, Y top to bottom; L labels, P power, A adds a symbol, E properties, D the datasheet, Home fits, ⌘F finds, ` lights a net on the next click, / switches a wire's pending leg. Copy, cut, paste and duplicate work on the sheet.
Symbols drawn as KiCad draws them: a push button two terminals, a slide switch SPDT, a latching tact switch DPDT (or one side only, from its details, while a pole is unused), an on/off switch SPST; an LED module is its LEDs and resistors on a common line. A resistor's value sits inside it at any angle; references and values hug every body; pins are a grid step long.
A symbol's details show only what the schematic cares about; the board's settings stay on the board. The tools are the board's: Select, Wire and Net on the rail, the tool's settings top right, Import from board in the menu.
Find a net by name in Find (⌘K): the whole net framed and lit, on the schematic or the board. The Nets pane's Show and the net picker's ⌖ do the same.

Your AI

The MCP draws and edits the schematic by the editor's rules, including hierarchical sheets, moves symbols and wires together, and pictures any sheet, whole or with a net framed, or the screen as you see it.
check_project says which chips aren't wired to the supply, and connect_power wires them as the Connect to power button does.

On a phone

The schematic opens on a phone: two fingers pinch and slide, a finger pans, a tap selects, a long press opens the menu, a double tap enters a sheet or opens details; Wire, Net label and Sheet sit under +, symbols drop where you tap, the tool's settings and the details come up along the bottom.
The “may be buggy” strip over the schematic is gone, on every screen.

Fixes

Escape closes the app menu over the schematic.

v0.54 October 23, 2026

Projects

Give a project topics on its settings page, picked from those already in use as you type.

The editor

Place a part beside the boards: it stays there, unplugged, to plug in or wire later.
Choose which pin of a slide or tactile switch is its common, as its datasheet says.
Search for pot or potentiometer to find the trimmer.
The Arduino Uno and Mega have pictures in the parts library, and a ceramic capacitor shows its code on both faces.
The site's menu (Home, Forum, Guide, Changelog) is in the editor's header signed out too.
Notes and Controls are in the view cluster at the bottom left, beside Nets and Jumpers.
The header's logo opens the site menu; the hamburger beside it is gone.
A running circuit pauses in a hidden tab, and after five idle minutes until you tap, to spare your battery.
Gatesmith is marked pre-alpha wherever it's offered.
What's selected is plain to see: a part takes a blue tint and glows on the board round it, a wire a blue halo, a breadboard a tint across its whole top.
A part or board being placed is see-through until you drop it.
Community is a button of its own in the header, on every page: Forum, Support, Feedback and Feature requests; ? keeps Getting started, the shortcuts, the guide and What's new.
The header says Log in and Register.
In a read-only project, “fork it” in the bar is a link that forks it.
Branch to try a change shows signed out too, and says it needs an account first.
Faults is a tab of the panel beside Controls, open even when nothing else is.
Getting started puts the power supply at the right end of the top + rail, so the + wire has the rail to itself; Back takes back what the step placed, and Redo puts it back.
Signing in after trying BBRouter asks whether to keep what you built, with a name, or let it go.
Build it, under Make it: a guided build of your layout a step at a time, in a bench's order (chips first, then the low parts, the wires as they're laid, the tall parts last, the jumpers at the end). Each step says what goes in and where, a wire's colour, how long to cut it and how much to strip; the board shows only what's built so far, the camera follows, and your progress is kept.
The build sheet prints in that same order: a box to tick per step, a chapter per board, what to cut and strip in columns of their own.
A signal generator in the parts library: a bench box beside the board with OUT and GND leads, a square wave from 0.1 Hz to 10 MHz with its duty cycle and level, Run / Stop and Step buttons on the box, in the schematic and the SPICE export too.
A chip that isn't wired to the supply says so when you select it, naming the pins and the rail each needs, instead of asking you to turn the power on. Connect to power adds a red wire from its VCC pin to the nearest + rail on the supply and a green one from GND to the nearest − rail, in one undoable step. Every chip the simulator knows gets it.

On a phone

Navigate or Edit, at the top of the tool rail: in Navigate one finger moves the view and never selects, and a long press selects what's under it; in Edit one finger selects, moves, draws wires and places. A long press is a right-click: on a wire it adds a turn, or takes one off.
The Menu is a pill at the toolbar's left, with Build and Schematic as its first items, and it opens with the project: its name, its owner, whether it's public, Star and Fork. It scrolls when it's taller than the screen.
The view options (3D or top, nets, jumpers, scope, displays, labels, warnings…) are behind the layers button at the bottom left.
A pinch over the toolbar or a panel no longer zooms the whole page: only the board zooms.
The tool rail is the blue + alone: it opens Find with Wire, Notes and Parts; Chip asks which chip first; one wire, note or part placed, the tool is Select again.
A part drops where your finger taps; a finger beside a push button or switch works it; a double tap is a right-click, like a long press.
Selecting something names it at the top right, its details a tap away; the wire tool's settings are a small strip there too, not a half-screen panel.
Share is in the toolbar, and ? (support, feedback, feature requests, the guide) is in the header.
The circuit redraws less and the page talks to the server less, for your battery.
Getting started says what to tap on a phone and points at it.
The Schematic says it's a work in progress on a phone, with a way back to the board.
One mode, no Navigate or Edit switch: a tap selects, a slide moves the view unless it starts on what's selected, two fingers turn and zoom.
The board is drawn sharp once the view has been still for a second, and cheaply while it moves.
A switch moves only once selected: a slide from one not selected moves the view, a tap flips it; a tap that presses a push button selects it too.
Open menus close on a tap outside them.
Faults and the scope open from the layers menu as sheets, and the scope's toolbar fits on one line: + to add, the span, play / pause, Measure, Save and ⋯.
The layers menu and the + sheet never show at once.
Getting started's chapter list folds by itself after a second, tapping + during the tools step goes on, and a step asks for the Wire tool again before the ground wire, the bubble clear of the + button.
Getting started skips the steps about hovering a hole.
Build it is a sheet at the bottom: the step big, big Previous and Next, a swipe to move on, the steps folded under one line, the screen kept awake.
A × at the end of the selection bar lets go of what's selected.
A long press or a double tap on a part selects it; the simulator's source code is a desktop thing now.
Fields no longer zoom the page as you tap into them.
The editor's header fits a tablet held upright.

Fixes

Deleting a part takes its pins out of the netlist, so the project no longer warns about missing pins when you open it again.
Moving a chip keeps it in its group, and a group's display stays its own once its chips are reordered.
Virtual displays keep their dark face in Safari: an iPhone saw the board through every readout.
A read-only project is read-only everywhere: a part's reference, the schematic's inspector and the displays' places can't be changed any more.
The dock's header stays on top while its panel scrolls, so its × is always within reach.
In Navigate a finger on a virtual display moves the view, not the display.
The tutorial's + wire no longer lands in the supply's own hole, which a later load refused, leaving the LED unlit in the kept project.
The “This link doesn't open a project any more” panel says Log in, as the header does.
The header's menus stay on the screen and scroll inside it.
A page that breaks shows BBRouter's own error page, with Try again and a link to Support, in your language.
A new file no longer logs a missing-picture error in the browser's console.

Your account

Posting on the forum needs a confirmed email. A day after signing up, the rest of BBRouter waits for it too: the site and the editor say by when, with a button to send the link again.
The link confirming your email lands on your projects and says so.

v0.53 October 23, 2026

The editor

Every part shows its pin names while you place it, hover it or select it: + and − on LEDs and capacitors, E B C on a transistor, the printed names of an LCD, a Nano or an Arduino, a 7-segment display's segments. An Arduino Uno or Mega names its header sockets, and its power and analog headers are printed on the board.
Sort your projects by last edited, name or stars, either way round.
Pick an electrolytic capacitor's can by its size, as sold.
The version running shows beside the BBRouter name, a click away from what's new in it.

Auto-route

Wires are laid low and easy to follow, never over a chip and never through one another. A bus's wires share a colour; power is red and black.
Power rails are joined the way breadboard builders join them, and stacked boards share their rails as on a breadboard computer.

Samples

New: the 74LS00, an XOR made of four NAND gates, on a breadboard and in Gatesmith; and Ben Eater's 6502 computer.
The digital clock, Pong and others rewired: one resistor per display on the clock, boards stacked to share their rails, and each Nano's USB facing out.

v0.52 October 21, 2026

Getting started

A course for your first steps in BBRouter, right in the editor: a bubble says what to do and moves on once you've done it. Find your way around the screen, learn how a breadboard's strips and rails connect, move the camera, then build your first circuit (a supply, a resistor and an LED), power it, look inside it, burn the LED and bring it back, and see its schematic. Show me does a step for you, Skip leaves it, and the outline at the bottom right takes you to any step. Start it from Help › Getting started; it works on a phone too.

v0.51 October 20, 2026

Projects

Fork: make a copy of any project you can open, as on GitHub. It becomes a project of your own and remembers where it came from.
Star any project you can open, your own private ones too.

The editor

Power supplies at any voltage, from 0 to 30 V: type it, pick 3.3, 5, 9 or 12 V, or turn its knob while the circuit runs. Each chip works on its own family's range, warns above it and burns past its maximum, and a 3.3 V signal into a 5 V chip is pointed out. The probe and the scope show a high's volts.
The Menu is the toolbar's first button. An example from Menu › Examples is added beside what's on your board.
A RAM's program listing can be resized from its corner.
The header and the toolbar fit at every window width: what doesn't fit goes under ⋯.

Simulation fixes

A 555 one-shot ignores a new trigger during its pulse and times it from the trigger, so an Atari Punk Console makes its sound.
A watch crystal clocks a CD4060.
An Arduino's analogRead reads a trimmer's middle pin.

Gatesmith

A Gatesmith project's editor looks like the breadboard's, and its picture shows its circuit.
Your AI can create and read Gatesmith projects.

v0.50 October 16, 2026

Projects

What you make in BBRouter is a project now: Your projects, New project, Project settings. Its address is bbrouter.com/<you>/<project>.
Your projects open as previews, each with its picture, and the pictures show at once. Rows are one click away.
The trash empties: Delete forever on each project, or Empty the trash.
A private project's link pasted in a chat (Slack, WhatsApp, iMessage, Discord) shows a card saying it's private, never the project itself.

The forum

Feature requests: ask for what you'd like BBRouter to do, from the forum or the ? menu, and vote for the ones you want. Showcase and Feedback take votes too.
Every showcase shows the picture of the project it links, a public one or a share link.

v0.49 October 16, 2026

A new look

One header on every page: the menu, a search for your files and BBRouter's pages (⌘K, or Ctrl K), + New, help, and your account's menu with the language and the theme. One footer too.
The editor shows one file at a time, under the same header, with its own toolbar: undo and redo, Build and Schematic, then Find, Power, AI, Versions, the tour when the file has one, and Share.
bbrouter.com is Your files: find a file, show only the private or the public ones, see them as rows or as previews, and open the Branches, Trash and Starred tabs. A file in the trash comes back with Restore.
A new file has its own page, with its name and the address it will have, who can open it, and what it starts from: blank, an example, or a copy of one of your files. Each file has a settings page to rename it, see what it holds, make it public or private, or move it to the trash.

Stars, the forum and the guide

Stars: star a public file from beside its name. Each public file shows its stars, and your profile lists the files you starred, unless you keep that list private.
The forum lists every topic, with tabs for Showcase, Support and Feedback and a search. A showcase topic that links a BBRouter file shows its picture.
The guide has its contents at the left, with a search, and speaks your account's language. Signing in and the website follow your theme, light or dark.

v0.48 October 15, 2026

Files of your own: every file is yours at bbrouter.com/<username>/<file>, private or public on its own. A public file opens read-only to anyone with its address and is listed on your profile, bbrouter.com/<username>. Old addresses take you to the file.
Try BBRouter without an account at bbrouter.com/try: a breadboard of your own to change, power and run, kept in your browser until you sign up.
Emails: a forgotten password, confirming your email, and, only if you ask, what's new in BBRouter, each in your account's language. BBRouter speaks your account's language everywhere, and its website is in French and Spanish too.
A whole class can sign up from one school network at once.
The editor: a RAM's program floats over the board, its current line lit; Level with… runs a wire's section at the height of one alongside it; copy and paste keep wires' crossings, heights and order; a computer that can't draw 3D is told so.

v0.47 October 13, 2026

BBRouter lives at bbrouter.com; the app's old addresses, share links included, take you there.
A forum for everyone signed in: Showcase, Support and Feedback, with topics and replies.
SPICE netlists: Import… reads LTspice, ngspice and KiCad's simulation netlists, and Nets › SPICE exports yours for ngspice or LTspice.

v0.46 October 13, 2026

A RAM program editor: Program… on a RAM chip writes your instruction set (Ben Eater's SAP-1 set is one click away) and your program, with a live listing and its problems by line, and Compile loads it into the RAM.
A chip's state shows in binary, hex and decimal, each column on or off.
Choose the picture a file's share links show: File › Use this view for link previews.
Displays and labels are kept with each file's view.

v0.45 October 13, 2026

Share links show the file itself in Slack, Discord, iMessage, X or LinkedIn, titled with its name and who shared it, and big files are drawn in seconds.
Nets sort by their name, whatever marks them inverted: /CLK right after CLK.

v0.44 October 12, 2026

New camera controls: right-drag orbits round the board, middle-drag pans; on a trackpad two fingers pan, ⌥ and two fingers orbit, and a pinch zooms. The guide and the help say so in every language.
Thin wires laid under a raised part, a 7-segment display on its riser say, are no longer warned about.

v0.43 October 11, 2026

A Labels switch in the bottom bar shows or hides every label.
Keep state, on each RAM chip, keeps what it holds when the power goes off.
Editing a big layout is several times faster: only the wires an edit can change are routed again.
Wires lie better: a jumper under a wire alongside it keeps its insulation, and wires ending in the same hole no longer push each other up.

v0.42 October 10, 2026

A wire or a section set to height −1 lies down in the breadboard's centre channel, under the jumpers across it.
Labels no longer flicker, and chip markings stay steady from further away.
Screenshots drawn for your AI assistant work again, in moments.

v0.41 October 10, 2026

Character LCDs: HD44780 modules from 8×1 to 40×2, wired as in Arduino's LiquidCrystal examples, show what the sketch prints, custom characters and the cursor included, with the backlight and the contrast as wired.

v0.40 October 9, 2026

Labels: a card placed like any part, on a board or on the table, lying on whatever is under it, its text in columns, resized by its corner.
7-segment displays can stand higher, so wires run under them, and a wire along the centre channel passes under a chip.

v0.38 October 9, 2026

A click selects exactly what the tooltip names, with the mouse or a finger.
A new branch opens where you were looking.
Put over and Put under work for wires lying along each other too, and the thickest wires sit side by side instead of stacking.
A page left open across an update says so, with Reload.

v0.37 October 8, 2026

Warnings beside Faults: boards on top of each other, wire ends under a part, chips not simulated, an LED running hot. Click one and the camera frames it.
A wire can't end in a hole a part's body covers.
A file's tour plays by itself the first time it opens, then from its button.
Set a DIP switch by typing its value (127, 0x7F or 0b01111111).

v0.36 October 8, 2026

New parts: an RGB LED, single-colour and RGB LED matrices, a buzzer that sounds what an Arduino plays, and a servo.

v0.35 October 8, 2026

Your AI assistant gets a catalog of every part, how it's placed and its pins, and is refused, with the reason, anything that isn't valid, boards on top of each other included.

v0.34 October 8, 2026

Phone and tablet gestures: one finger slides the board, two fingers turn and tilt it, a pinch zooms, and a twist turns it with your fingers.

v0.33 October 8, 2026

Connect your AI: an AI chip in the top bar shows whether an AI app is connected and at work, and how to connect Claude and others. The guide has a chapter on it.
A burnt part works again once what burns it stops.
Grouping holes works on a phone, with Cancel and Done.

v0.32 October 8, 2026

Parts burn out as real ones do (an LED with too little resistance, a resistor over its power, a chip on too many volts), in a puff of smoke, and the Controls tab says why.
A short across the supply cuts the power, with a notice saying why.

v0.31 October 8, 2026

A tour's step can point at any button on the page or any control of a part.
Reset state: the file as if just opened.

v0.30 October 8, 2026

A new website at www.bbrouter.com, which stays up even while BBRouter restarts.

v0.29 October 7, 2026

Guided tours: add tooltips to a file, step by step, in English, French and Spanish; whoever opens it follows them.
Examples to start from, each with its tour.
Light, dark or as your computer is.

v0.28 October 7, 2026

An account page: your username, name, email and password, passkeys, Google, your sessions, the Arduino IDE computers and AI apps you connected, your language, a zip of all your files, and deleting your account.

v0.27 October 7, 2026

Real addresses for your files, public ones anyone can open read-only, and share links at bbrouter.com/s/…

v0.26 October 7, 2026

The guide in English, French and Spanish, each at its own address: /docs, /docs/fr and /docs/es. Links to BBRouter's pages show a preview card.

v0.24 October 7, 2026

Continue with Google to sign in or sign up.
Share links open signed out; Save a copy signs you in and comes back.
The scope comes back as you left it after switching files.

v0.23 October 7, 2026

Every address names its file's owner, and shows you only what's yours; notes are kept per account in a shared browser.
The guide is public, at /docs.

v0.15 October 6, 2026

English, French and Spanish, everywhere in the app.
A guide for students, from kindergarten to high school, with a search and its contents.
Simulation: RC edge detectors, as in Ben Eater's RAM write pulse; Arduino pins followed at the instruction that writes them, so his EEPROM programmer runs his sketch unchanged.
Finding mistakes: every short and floating line circled at once, the scope showing them, and the netlist saying where the wiring differs.
Displays and chips: common-cathode or common-anode 7-segment displays, steady when multiplexed; RAM and EEPROM images loaded and exported as Intel .hex or .bin.
The page comes back as you left it after a refresh.