RFID test tools
Tools for testing RFID devices in the browser (Chrome or Edge, over USB), with command-line versions. Each tool has
its own folder and README.
Pages: https://mfcarroll.github.io/rfid-test-tools/
Chameleon Ultra
| tool | what it does | firmware |
|---|
chameleon/crystal/ | how fast or slow the 32 MHz crystal runs, measured against internet time | stock v2.3.0 + command 3125 (feat/hfxo-count) |
chameleon/selftrim/ | (experimental) emulates HID Prox, Paradox and ioProx cards matched to a reader's clock; put the same card in slots with and without the various experimental modes, and see which ones a reader accepts | Paradox PR #489 + self-trim research (exp/fsk-selftrim-489) |
chameleon/indala/ | times Indala reads on the CU, and a Flipper Zero reading the CU's Indala emulation, to compare firmwares without moving anything | PR #509 (feat/lf-indala); flashes stock or a file of your own too |
Each tool needs its own test firmware, available to flash on the page, with stock v2.3.0 for flashing back. The
firmware is built from branches of mfcarroll/ChameleonUltra, and each
build also has a release here, tagged fw-<branch>-<commit>. The pages flash with
chameleon-ultra.js (MIT), loaded from jsDelivr.
Flipper Zero
| tool | what it does | app |
|---|
flipper/crystal/ | measures the 32 MHz crystal against internet time and saves the correction in the RFID detector app, allowing exact LF reader frequency measurements | RFID detector 1.5 or later (the page can install it on OFW or Momentum) |
Proxmark3
| tool | what it does | firmware |
|---|
proxmark3/crystal/ | how fast or slow the 16 MHz crystal runs, measured against internet time; the 125 kHz LF carrier is off by the same amount | Iceman master + CMD_HW_TICKS (feat/hw-ticks), flashed with your own pm3 client |
common/ holds what every page shares: the stylesheet, page helpers, and the crystal measurement and its fits.
timeserver/ is the Cloudflare Worker behind time.mfc.cx, the pages' second time server.
Publishing
After changing a page or a script, run python3 stamp_versions.py before pushing. It stamps each page's
modules and stylesheet with a hash of their contents, so a browser never pairs a new page with old cached files.
python3 stamp_versions.py --check reports any page that is out of date.
GPL-3.0.
