TubiGuard
TubiGuard is a water-quality monitoring prototype. Four probes sit in the water; the readings arrive on a small display built into the enclosure, alongside a three-state indicator that shows SAFE, WARNING or UNSAFE at a glance.
It was built from the board up — breadboard wiring, sensor conditioning boards, a microcontroller and a display — then moved into a project enclosure with the display and indicator lights mounted through the front panel.
It is a prototype. The photographs are from testing, and the values on the display are readings taken during those tests.
Built for a client who has asked to remain anonymous. No client detail is published.
What is in it
- ESP32 microcontroller
- pH probe with signal-conditioning board
- Turbidity probe
- TDS probe (Gravity TDS meter board)
- Temperature probe
- 0.96" I²C OLED display
- SAFE / WARNING / UNSAFE indicator LEDs
- Project enclosure with panel-mounted display and connector
What we did
- Circuit design and breadboard prototyping
- Sensor integration across four measurement types
- On-device readout and three-state status indication
- Enclosure fit-out and panel mounting
- Bench testing with probes submerged
From the build
Tell us what you are trying to build.
Bring the problem, not the spec. We will work out the shape of it together.
Monday–Saturday, 9:00 AM – 6:00 PM PHT