https://github.com/kritishmohapatra/100_Days_100_IoT_Projects
- Introduced `_lib.py` containing shared validators for board support and static source analysis for MicroPython projects.
- Added `conftest.py` to configure pytest for the test suite, simplifying import paths.
- Created `NOT_SUPPORTED.md` files for two projects indicating they cannot be emulated in Velxio due to lack of source code.
- Implemented unit tests for the unsupported projects to verify the presence of the NOT_SUPPORTED marker and source preservation.
Fixes the user-reported bug where two RPi Pico W boards wired GP0↔GP1
running SerialPassthrough don't communicate. Replaces the broken
broadcast-style cross-board logic in addBoard (only routed AVR↔Pi3B,
ignored wires entirely, no RP2040↔anything path) with a wire-aware
Interconnect singleton.
Architecture: digital pin transitions are the lowest-common-denominator
abstraction. Each simulator's hardware peripherals (UART/I2C/SPI) and
bit-banging libraries (SoftwareSerial, software I2C) decode the
transitions naturally — propagate the pin and the protocols come for
free. For cross-process boards (ESP32 backend QEMU, Pi3B QEMU) a
byte-level shortcut is additionally enabled on hardware-UART pin
pairs to handle high-baud links over WebSocket latency.
Implementation:
- New simulation/Interconnect.ts singleton subscribes to wire/board
changes via the Zustand store. Handlers per tier: browser-sim →
pinManager.onPinChange, ESP32 → Esp32Bridge.sendPinEvent, Pi3B →
bridge.sendPinEvent. Re-entrancy guard via per-(board,pin) Set.
- New utils/boardProtocols.ts classifies pins (uart-tx, i2c-sda, etc.)
per board kind, used as optimization hint for the byte shortcut.
- types/wire.ts: added signalType field, exports WireSignalType /
WireColorMap (fixes a pre-existing TS import error in wireColors).
- Deleted the bridgeMap/simulatorMap broadcast forEach blocks in
addBoard. Initial board + future boards register with Interconnect
via setInterconnectRuntime + store subscription.
- PinManager.resetPinStates() helper for test isolation.
Tests (16 new files, 96 tests, all passing):
- Per-pair × per-protocol matrix: dual-arduino-digital,
dual-pico-digital, arduino-pico-digital, triple-pico-digital-chain,
dual-arduino-hw-uart, dual-arduino-software-serial,
arduino-pico-mixed-uart, arduino-esp32-uart, dual-esp32-uart,
pi3-pico-uart, arduino-pico-i2c, arduino-arduino-spi,
interconnect-routing, dual-arduino-multi-protocol (UART+I2C+SPI+
digital + concurrent), dual-pico-multi-protocol (UART0+UART1 alt+
I2C0+I2C1+SPI0+digital + 3-Pico star topology)
- Updated dual-pico-serial-passthrough to assert correct behaviour
- Backend test/multi_board_esp32/test_dual_esp32_serial.py for two
real QEMU instances (skip-graceful when lcgamboa lib absent)
Verified: 1107/1107 tests pass, zero regressions, vite build OK.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Track per-user, per-project, and per-board usage to inform pricing tier
decisions. Adds an admin dashboard with KPIs (DAU/WAU/MAU, totals,
success rate), time-series charts for compiles/runs, board family +
FQBN breakdowns, "board diversity" pie chart (key freemium signal),
top users/projects, and per-country breakdown via Cloudflare's
CF-IPCountry header. Admin can now also view private projects.
Backend:
- New UsageEvent table (append-only event log with user_id, project_id,
event_type, board_fqbn/family, country, error_kind, duration_ms)
- Aggregate counters on User (total_compiles/runs/errors, last_active,
signup_country, last_country) and Project (compile/run/update counts,
last_compiled/run timestamps) kept in sync by MetricsService for O(1)
dashboard reads
- 10 admin endpoints under /api/admin/metrics/{overview, timeseries,
boards, board-diversity, top-users, top-projects, countries,
users/{id}, projects/{id}}
- POST /api/metrics/run for client-side run telemetry
- Country detection via cf-ipcountry header (no DB / no API calls)
- Auto-migrations in lifespan for legacy DBs
Frontend:
- recharts-powered Dashboard tab with KPI cards and 4 charts
- New Boards tab with per-family + per-FQBN breakdown
- Country column with flag emoji on Users tab
- Top countries card on Dashboard
- compileCode now forwards project_id; Run button reports via WS
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Loading an analog-only example removes every board. The single-board
branch of loadExample then called setBoardType, which only maps over
existing entries in boards[] and silently did nothing when the array
was empty — components rendered but no board. Fall back to addBoard +
setActiveBoardId when there are no boards.
- Modified the index file to reflect the new naming convention for Velxio components.
- Changed JSX declarations to use 'velxio-' prefix for various components.
- Updated component overrides to replace 'wokwi-' with 'velxio-' for logic gates and other components.
- Adjusted SVG generation script to use 'velxio-' prefix for BMP280 and Raspberry Pi components.
- Marked submodules as dirty in QEMU and RP2040 libraries.
- Added .prettierignore and .prettierrc.json for consistent code formatting.
- Introduced InstrumentComponent with support for Voltmeter and Ammeter, including pin information handling.
fix: increase timeout for compilation requests to 180 seconds
refactor: call recalculateAllWirePositions after loading examples
chore: update subproject commit for rp2040js to dirty state
chore: update subproject commit for wokwi-elements to dirty state
- Implemented ExampleLoaderPage to load examples by ID from the URL.
- Added ExampleLoaderPage route to App component.
- Created ShareModal for sharing project links with visibility toggle.
- Updated UserProfilePage to include share button for user projects.
- Enhanced ExamplesGallery with a copy link button for examples.
- Introduced utility function loadExample to streamline example loading and library installation.
- Updated project visibility management in useProjectStore.
- Added styles for new components and buttons.
- Updated .gitignore to include Arduino compilation byproducts.
- Added tracking for simulation events: start, stop, and reset.
- Implemented tracking for library manager interactions, including library installations.
- Enhanced project management tracking with save and create project events.
- Integrated tracking for user authentication events: sign-up and login.
- Added tracking for CTA clicks on landing and SEO pages.
- Updated analytics utility functions to support new tracking events.
- Improved GitHub and Discord link tracking in the app header.
- Refactored existing components to utilize new tracking functions for better user engagement insights.
- Implemented ArduinoMegaSimulatorPage with detailed specifications, FAQs, and JSON-LD for SEO.
- Created ArduinoSimulatorPage featuring interactive components and a comprehensive FAQ section.
- Developed AtmegaSimulatorPage to simulate ATmega328P with full AVR8 emulation and included relevant FAQs.
- Introduced shared SEOPage.css for consistent styling across all simulator pages.
- Added useSEO utility for managing SEO metadata dynamically across pages.
- Implemented a simple LED blink program in C for the ESP32-C3, targeting RV32IMC architecture.
- Created a linker script to define memory layout for the ESP32-C3.
- Added build script to compile the blink program using the riscv32-esp-elf-gcc toolchain.
- Developed Esp32C3Simulator to emulate ESP32-C3 behavior in the browser, including GPIO and UART functionality.
- Implemented utility functions to parse ESP32 flash images and handle loading of binary data.
- Included disassembly output for debugging purposes.
- Added necessary test fixtures for the blink example.
- Implemented ATtiny85 visual component with DIP-8 layout and built-in LED.
- Added Raspberry Pi Pico W web component using official SVG and pin mapping.
- Created RISC-V Board visual component with SOP-20 style and built-in LED.
- Introduced RiscVCore class for minimal RV32I ISA interpreter with memory model.
- Developed RiscVSimulator class for CH32V003-compatible simulator with UART and GPIO support.
- Updated subproject commits for qemu-lcgamboa, rp2040js, and wokwi-elements to dirty state.
- Updated wire structure to replace control points with waypoints for better handling of wire paths.
- Introduced new utility functions for wire hit detection and rendering segments.
- Enhanced wire creation process to support dynamic waypoints and color assignment.
- Implemented a new ESP32 worker for improved simulation handling.
- Added utility functions for generating orthogonal paths and auto-coloring wires based on pin names.
- Improved compatibility with existing projects by ensuring backward compatibility with wire data structures.
- Added ESP32 emulation plan and architecture documentation.
- Created `esp_qemu_manager.py` for managing ESP32 QEMU instances.
- Modified backend API routes to support ESP32 firmware loading and GPIO handling.
- Introduced `Esp32Bridge.ts` for frontend communication with ESP32 instances.
- Refactored simulator store to support multiple boards, including Raspberry Pi and Arduino.
- Created `RaspberryPi3Bridge.ts` for WebSocket communication between frontend and backend for Raspberry Pi.
- Updated QEMU manager to handle multiple serial ports for Raspberry Pi GPIO communication.
- Enhanced SimulatorCanvas to render multiple boards and manage wire routing between them.
- Implemented board picker modal for selecting and adding boards to the canvas.
- Updated editor to support multiple file groups per board.
- Added migration logic for loading old project formats into the new multi-board structure.
- Ensured backward compatibility with existing components and functionality.
- Introduced new BoardKind types for Raspberry Pi 3B and updated BoardInstance interface.
- Added BOARD_KIND_LABELS and BOARD_KIND_FQBN mappings for new board types.
- Implemented physical to BCM GPIO mapping for Raspberry Pi 3B in boardPinMapping utility.
- Updated BOARD_COMPONENT_IDS to include Raspberry Pi 3B.
- Enhanced isBoardComponent function to support new board type.
- Modified boardPinToNumber function to handle pin mapping for Raspberry Pi 3B.
- Introduced ArduinoMega component for rendering in the simulator.
- Updated SimulatorCanvas to handle Arduino Mega board type.
- Enhanced AVRSimulator to support ATmega2560 architecture, including PWM pin mapping and port management.
- Modified PinManager to accommodate Mega's non-linear pin mapping.
- Updated boardPinMapping utility to include Mega analog pins.
- Adjusted Wokwi import/export functionality to recognize and handle Arduino Mega.
- Updated useSimulatorStore to initialize AVRSimulator with the correct board variant.
- Add LoginPage and RegisterPage for user authentication.
- Create UserProfilePage to display user projects.
- Implement ProjectPage for viewing and editing individual projects.
- Introduce authService for handling user login, registration, and session management.
- Add projectService for managing project data retrieval and manipulation.
- Enhance EditorPage with file management capabilities and save prompts.
- Introduce Zustand stores for managing authentication, editor state, and project state.
- Add reserved usernames utility to prevent certain usernames during registration.
- Update compilation service to handle multiple files for Arduino sketches.
- Simplified serial data handling in `useSimulatorStore` for both AVR and RP2040 simulators.
- Introduced `boardPinMapping.ts` to map wokwi-element pin names to simulator GPIO/pin numbers for Arduino Uno and Nano RP2040.
- Added `compilationLogger.ts` to parse compile results into structured log entries for better console output.
- Updated components-metadata.json with new generation timestamp.
- Added event handling for button presses and releases in DynamicComponent.
- Improved ExamplesGallery with new styles for placeholders and previews.
- Introduced LCD 20x4 display example with corresponding code and wiring.
- Enhanced SimulatorCanvas to subscribe components to pin changes.
- Implemented PartSimulationRegistry for managing component simulation logic.
- Added basic and complex parts simulation including pushbuttons, LEDs, and LCDs.
- Created utility functions for capturing canvas previews and generating SVG previews for example projects.
David Montero Crespo
copilot-swe-agent[bot]