PotWatch / Gallery

Gallery

The working prototype, hand-built: stainless probe, off-the-shelf electronics and a 3D-printed twin-shell enclosure. This is what yours will look like when you print and assemble it from the free files.

In the kitchen

Doing the job it was built for.

One minute of Benedict on an induction hob, photographed start to finish — clipped on, waiting, counting, done.

PotWatch clipped to the rim of a saucepan, its stainless probe down in the still water
The device hanging on a saucepan on an induction hob, the word INDUCTION visible on the cooktop, display lit
The preset menu on screen — Benedict, soft egg, hard egg — with the pot behind
Screen reading 87.6 degrees C against a boil point of 88, water beginning to bubble
Countdown at twenty-one seconds, captioned Water at temp, over a full rolling boil
The screen showing READY! and Press OK beside the boiling pot

What the sequence shows

The fourth frame is the one worth pausing on: 87.6 °C, against the 88 °C this device is set to trigger at. Four tenths of a degree short, and it has not started counting.

That 88 is a deliberate choice rather than the physical boiling point. Well before a full boil the water is already working hard enough to cook — so the timer starts there and the hob comes down. The threshold is settable anywhere from 85 to 102 °C; see how it works.

The build

The prototype itself.

Front view of PotWatch: the OLED screen showing the Benedict, soft egg and hard egg presets
PotWatch at an angle with the preset menu lit up on the display
PotWatch standing upright with the menu on screen
The printed enclosure showing the display window and the two control buttons
Top view showing the stainless steel temperature probe leaving the body
Side profile of PotWatch with the steel probe extended
Rear view of the clip body and the probe mount

About these photographs

The screen in these shots still shows the project's original name and an earlier firmware build. The current release is PotWatch v4.0, which added the dry-pot alarm, the probe fault warning and the non-blocking sound engine.

Video

Seeing it work.

A photograph cannot show the thing that actually matters — the moment the water reaches a boil and the device decides, by itself, to start counting.

PotWatch working on the hob — 12 seconds, no sound needed.

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Understand
How it works →
What the device is doing between the photographs.
Build
Components →
Everything you need to make one of your own.