Files
Carputer-cracker/README.md
Indiana Holmes d1c37b83e0 Add theme engine, animated UI, and Bus Dump / Crypto / Exfil modules
UI:
- Theme engine (5 palettes) persisted to NVS; live Theme switcher module
- Animated shell: boot splash, CRT scanlines, breathing menu cursor,
  wipe-in transitions, spinners, progress bars

New recon modules:
- Bus Dump: SPI-NOR + I2C EEPROM readout to microSD (read-only)
- Crypto Lab: entropy, magic-byte file-ID, XOR brute, AES-128 known-key
- Exfil: SD browser + base64 dump export over USB serial, manifest writer

README updated with the new module table and look-and-feel notes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AAhMHMRAQLQ9hSbBECKNfn
2026-09-11 00:17:57 +00:00

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3.0 KiB
Markdown

# Card-Crack
A manual-trigger hardware/network **recon toolkit** for the
[M5Stack Cardputer](https://docs.m5stack.com/en/core/Cardputer) (ESP32-S3),
built for **home-lab pentesting of devices you own** — your router, a car's
OBD/USB port, a PC, smart appliances.
> ⚠️ **Authorized use only.** Every tool here is scoped for your own bench:
> single targets you enter by hand, curated default-credential lists (not
> brute-force), rate-limited network checks, and read-only descriptor/ID
> reads. Nothing scans, transmits, or replays on its own — you press the
> action key. Don't point it at anything you don't own or run.
## Modules
| Module | What it does |
|-------------|---------------------------------------------------------------------|
| **Pin Scan**| JTAGulator-style detection of **UART / JTAG / SWD** pins on the probe header. UART baud estimation; JTAG & SWD IDCODE reads. |
| **V-Sense** | Live target-voltage probe through a divider; guesses the logic family so you know what you're touching before driving a pin. |
| **UART Sniff** | Passive UART capture (hex+ascii, selectable baud); freeze a frame and **replay it on a keypress** (manual TX only). |
| **USB Enum**| ESP32-S3 as USB host — reads **descriptors** (VID/PID, class, strings, config) to fingerprint an unknown device. Read-only. |
| **DefCred** | Checks a single host (default: gateway) against a short list of **factory-default logins** over HTTP Basic Auth. Stops on first hit. |
| **Bus Dump**| Reads **SPI-NOR (25-series)** and **I2C EEPROM (24-series)** chips on your own boards to `/dump/*.bin` on microSD. Read-only. |
| **Crypto Lab** | Offline analysis of a dumped blob: **Shannon entropy**, magic-byte **file-ID**, single-byte **XOR** brute, **AES-128-ECB** known-key decrypt. |
| **Exfil** | Browse the SD card and **stream a dump to the host** over USB serial as base64 (`base64 -d`); writes a manifest of what you pulled. |
| **Theme** | Live **UI theme switcher** — 5 palettes, saved to NVS, restyles everything instantly. |
## Look & feel
Boot splash with a sweeping-glow logo, CRT scanlines, a breathing menu
cursor, wipe-in transitions, spinners and progress bars. Switch palettes any
time in the **Theme** module.
## Build & flash
Requires [PlatformIO](https://platformio.org/).
```bash
# set your lab Wi-Fi for the DefCred module (or edit defcred.cpp)
pio run -e cardputer \
-a "--build-property build.flags=-DCC_WIFI_SSID='\"MyAP\"' -DCC_WIFI_PASS='\"secret\"'"
pio run -e cardputer -t upload
pio device monitor
```
## Controls
- Menu: `;` up · `.` down · `Enter` open
- In a module: <code>`</code> (backtick) back · per-module hints on the bottom bar
## Layout
```
src/core/ shell, module interface, UI helpers, pin map
src/modules/ one file per recon tool
docs/ HARDWARE.md wiring + safety
```
See **[docs/HARDWARE.md](docs/HARDWARE.md)** before wiring — the S3 is a 3V3
part and 5V on a bare GPIO will destroy it.