Device
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Battery—
Device
Serial MJ-0003
Chip ESP32-S3-MINI-1-N8
BLE name MasonJar3
Firmware v0.1.0
Flash storage 16 MB W25Q128
Capacity 280,112 fingerprints
Data collection
Sample label
Heater profiles · 0 selected
cycle varies by profile selection
Stored
Fingerprints —
On flash —%
Run summary
Sample label —
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Connection —
Stored data
Classifier training
Upload one or more CSV exports to train a polymer classifier. Pick a classifier and an air-baseline normalization, then train. All computation runs locally in a Web Worker — no data leaves the browser.
Drop CSV files or click to browse
USB firmware flash
Flash a fresh firmware image via USB. Requires Chrome or Edge. The default firmware is fetched from the public GitHub release.
Device name
MasonJar
Firmware
Loading default firmware…
Drop .bin file or click to browse
BLE OTA update
Upload a firmware image to an already-connected device over BLE. Requires an active BLE connection from the Collect tab.
Activity log