PurityScan

Compares a liquid against a clean reference using a laser. It flags cloudiness and colour. It cannot detect clear liquids such as salt water or alcohol.

View Supported Liquids & Detection Matrix →

1. Connect your device

   Plug the Arduino in with the USB cable, then pick its port. Works in desktop Chrome or Edge.

   Connect Arduino

2. Check the buzzer

   Play test beep

3. Check laser and sensor

   With an empty cup in place and the lid closed, the laser turns on for up to 60 seconds. Never look into the beam.

   Laser on and readLaser off

4. Calibrate with the clean liquid

   Fill the cup with your reference (clean water for water tests), wait 5 to 10 seconds for it to settle, then calibrate.

   Calibrate

5. Scan a sample

   Scan

6. Build the dataset and train

   After a scan, label it and save it. Collect 20 or more per liquid, then train. The classifier learns from your own samples.

   Label cleanmilkydyedsoapymuddy
   Save last scan Train on server Download CSV

7. Settings

   Server address (optional) Suspect above (%) Different above (%)

   Without a server, the verdict uses simple thresholds on this page.