Settings
The gear icon on the main screen opens the device's full configuration, organized in categories.
Pump & sensor
Sensor calibration
The ultrasonic sensor measures the distance from the tank lid down to the water surface. To turn that distance into a percentage, the device needs two references:
- Minimum distance (cm) — with the tank full: sensor-to-water distance at 100%. The shortest distance.
- Maximum distance (cm) — with the tank empty: sensor to the bottom (or to the lowest usable level). The longest distance.
Easy way to measure: with the tank full, watch the level in the app and adjust the minimum distance until it reads ~100%. With the tank nearly empty, adjust the maximum until it reads ~0%. A tape measure works too.
The minimum distance should never go below 30 cm (12 in) — that's the ultrasonic sensor's (HC-SR04) limit per its datasheet: closer than that, the echo can bounce back before the sensor finishes emitting it, causing false readings (level that jumps around or freezes). If your tank is shallow and the full-water level sits closer than 30 cm to the lid, mount the sensor a bit higher instead of shrinking the threshold.
Start & protections
| Parameter | What it does | Values |
|---|---|---|
| Automatic start threshold (%) | In Auto mode, the pump starts when the level drops below this percentage. | Between 5 and 90 |
| Minimum pause between starts (s) | Mandatory rest between a stop and the next start. Protects the motor from rapid cycling. | Number ≥ 0 |
| Max time pumping without level rise (s) | The "flow watchdog": if the pump runs this long and the level doesn't rise, it shuts off and logs a Pump fault. Catches dry running, broken pipes or closed valves. | 0 = no limit |
| Cistern sensor | If your water comes from a cistern with the level sensor (float switch) installed, the device checks there's water available before starting the pump — and stops it if the cistern runs dry. | On / Off |
If you don't have the float switch installed, keep the cistern sensor off — enabling it without the sensor would prevent the pump from starting.
When you're done, tap "Save settings". Changes apply to the device instantly.
WiFi network
Depending on how your device is connected, you'll see different options:
If it's on your home WiFi
- Change WiFi network — connect it to a different network (e.g. you changed routers). The device scans and you pick the new one.
- Use the device's private network — switch back to standalone mode with no router.
If it uses its private network
- Change this network's name and password — the device restarts with the new credentials and the app guides you to reconnect.
- Connect to home WiFi — switch to router mode.
Reset WiFi settings
"Reset WiFi settings" erases the network credentials and
returns the device to its factory network
(BombaAgua-XXXX / bomba1234), like new out of the
box — but keeping your calibration, thresholds and
schedules. The app then guides you through pairing again.
Block schedules
A block schedule defines windows when the pump must NOT start automatically — overnight to avoid noise, or during expensive electricity hours. Manual control always stays available: blocks only hold back Auto mode.
- Tap + to create a block.
- Pick the days (shortcuts: Mon–Fri, Weekend, or tap individual days).
- Set start and end. If the end is earlier than the start (e.g. 22:00 → 06:00), the block crosses midnight and ends the next day — the app tells you.
- Save. While a block is active, the main screen shows a notice.
Schedules require the device to be linked to the cloud (the server programs and watches them). If you haven't linked it yet, the app offers to right there.
Firmware updates
Firmware is the device's internal software. We publish improvements and fixes you can install from the app under Settings → Update firmware.
Check online
With internet, tap "Check for update": if there's a newer version, tap "Update now". The device downloads, installs and restarts by itself within a minute or two.
From a file (no internet)
- Get the official
.binfile (we share it through support channels). - Hold the device's MODE button for about 6 seconds, until it signals "update allowed".
- In the app, tap "Select .bin file" and pick the file. Don't close the app while it uploads.
Pump location (optional)
Under Settings → Register location you can record where the pump is installed using your phone's GPS. It's completely optional and only the Tinajón Pro team sees it, in aggregate — it helps us know in which regions the product is used.