The WiFi Water Level S1 is an advanced water level monitoring device designed to deliver precise measurements for various applications, including tanks, wells, and reservoirs. Utilizing WiFi connectivity, it enables real-time monitoring and management of water levels from anywhere via a smartphone or computer. Powered by solar energy, the device is completely wireless and autonomous. The demo device has managed to last a year working stable, without needing a battery change or any kind of maintenance using solar energy.
The system is cloud-connected, requiring an internet connection, and is designed for reliable, continuous operation. For more details, refer to the full features page.
Additionally, it integrates seamlessly with the WiFi Smart Water Pump Controller S1, allowing for automatic control of a water pump based on the sensor's data. This integration enhances the system's efficiency by automating water management processes.
The complete server-side implementation is available at: https://github.com/rrguardo/WaterLevel.Pro
Related features include real-time level updates, device linking and key management, historical tracking, alert-ready cloud endpoints, and web/mobile-friendly dashboards for monitoring and control.
The project is open source and open hardware, licensed under GPLv3. All hardware, software, and 3D printable components were designed from scratch by me, Raul Rodriguez Guardo, and are released under the GPLv3 license, allowing for free use and modification.
- All HCSR04 sensors family, that can work with 3.3V
- AJ-SR04M recommended for water tanks or places of extreme humidity.
- RCWL-1670 is compatible, but will need special waterproof case, if will be placed inside water tanks.
- UART Distance sensors , that can work with 3.3V (Not tested yet, experimental)
- A02YYUW recommended for water tanks or places of extreme humidity. Offer a range of 3-450 CM, with an small 3 CM blind area.
Note: UART sensors have not been tested with this device yet and are currently in the experimental phase.
To enable UART (A02YYUW), add or uncomment #define UART_SENSOR. Refer to the schematic or the PCB layout image
to identify the RX/TX pins.
- Tested with 5.5 V, 130 mA Solar Panel (5.5V 130mA 72x72mm) https://www.aliexpress.us/item/3256804502745527.html using D1 5V zener.
- Don't use solar panels that pass the 250 mA or 5.5V
For a detailed guide on how to build this project, check out the full tutorial at Instructables.
This devide use ESP32-C3 microcontroller can use Arduino IDE to flash/upload microcontroller code, using ESP32C3 Dev Module as board.
Download Latest Firmware Builds Here
At EasyEDA project editor click Order menu.
For more details about important 3d printing recommendations read this tips.
| 3D Print Provider | Recommended Materials for Outdoors | Approximate Price | Print Quality | Delivery Options | Comments |
|---|---|---|---|---|---|
| JLCPCB (JLC3DP) | Nylon (PA12) | Low to Medium | High for resin and MJF | International, economical | Great value for money, lacks PETG or ASA options |
| Shapeways | Nylon, Stainless Steel, Aluminum | Medium to High | Very high, detailed | International, fast | Ideal for high-detail projects and outdoor durable parts |
| Sculpteo | Nylon (PA12), Aluminum, Carbon-Reinforced Nylon | Medium | High | International, fast options | Wide range of materials, good for durable prototypes |
| 3D Hubs | PETG, ABS, Nylon, Carbon Fiber-Reinforced Materials | Medium | High, varies by local provider | International, varies | Global network, quality and delivery times vary by provider |
| Craftcloud | PETG, Nylon, ASA, Carbon Fiber-Reinforced Materials | Medium | High, varies by provider | International, varies | Service aggregator, good price comparison across providers |
| Materialise | Nylon (PA12), Carbon-Reinforced Nylon, Metals | High | Very high, industrial focus | International, fast | Focus on industrial and professional applications |
| Xometry | Nylon, ABS, PETG, Aluminum, Carbon-Reinforced Nylon | Medium to High | Very high, professional focus | International, fast | Ideal for custom manufacturing and durable industrial parts |
Choose durable materials like PETG for outdoor use, and set infill at 60% or higher for added strength. Just upload the 3D files and get everything printed and shipped to you!
The installation manual provides detailed instructions on setting up the WiFi Water Level S1. Be sure to read all instructions carefully before proceeding with the installation to ensure proper setup and functionality.
WiFi Water Level S1, Installation Manual
- All the hardware part
- Electronics part: PCB, schematic.
- Printable 3D Case
- Firmware software
- Full server-side reference: WaterLevel.Pro
This repository focuses on hardware, firmware, and printable case assets. The complete server-side reference is maintained in its own repository.
- Add basic DIY Guide
- ...
Disclaimer:
This open-source electronics project/device is provided strictly for experimental, educational, and developmental purposes. It is offered "as is," without any warranties, express or implied. This includes, but is not limited to, implied warranties of merchantability, fitness for a particular purpose, or non-infringement.
Users are solely responsible for ensuring that the use of this device complies with local laws, regulations, and safety standards in their region.
