Vehicle-compatible variants
In the world of marine technology, staying connected to your vessel's power system is crucial. A new all-in-one WiFi meter, the Shelly UNI, could potentially revolutionise this aspect by offering a simple and cost-effective solution for monitoring 12V and 24V batteries remotely.
The Shelly UNI, priced under 20 euros, is an untested device for building various alarms and inventions, but its versatile input capabilities and WiFi connectivity make it an exciting prospect. Here's a practical guide on how to build a WiFi battery monitor using the Shelly UNI:
1. **Shelly UNI Key Features**: - The Shelly UNI boasts two universal inputs (voltage, pulse, and dry contact) and one relay output, making it a versatile device. - Its built-in WiFi allows integration with your home network or cloud for remote monitoring and control. - The device works well with 12V and 24V DC supply monitoring due to its flexible input voltage measurement range.
2. **Measuring Battery Voltage**: - To monitor the battery voltage, use the analog voltage input of the Shelly UNI. - For 24V batteries, you may need a voltage divider circuit to scale down to the Shelly UNI’s acceptable input voltage range (typically up to about 30V max). - For 12V batteries, the voltage divider might be simpler or unnecessary if within range. - This analog measurement allows tracking battery voltage changes, indicating the state of charge.
3. **Powering the Shelly UNI**: - Supply the Shelly UNI either from the battery itself (if within 12-24V DC range) or a separate power source. - Careful wiring ensures the Shelly device is protected and powered continuously for a stable WiFi connection.
4. **Data Access and Monitoring**: - The Shelly UNI connects to your WiFi network, allowing you to monitor battery voltage from anywhere using the Shelly Cloud app or a compatible home automation platform. - You can set alerts for under-voltage or over-voltage conditions via app rules or automation scripts.
5. **Additional Controls**: - Use the relay output to turn on/off loads or chargers remotely based on battery voltage readings. - Binary inputs can also monitor additional parameters like temperature or external switches if required.
6. **Summary Steps**: - Connect the voltage divider circuit from the battery positive terminal to the analog input on the Shelly UNI. - Connect the Shelly UNI ground to the battery negative terminal (common ground). - Power the Shelly UNI appropriately. - Configure the Shelly UNI via the web interface or app to measure the voltage input and report via WiFi. - Use the Shelly Cloud or integrate with home automation for remote monitoring/alerts.
This solution offers an affordable, simple, and wireless way to monitor 12V/24V batteries from anywhere without complex hardware, using the Shelly UNI’s built-in WiFi and analog inputs.
For those interested in more features like current sensing (for battery charge/discharge monitoring), consider combining the Shelly UNI with external current sensors compatible with its inputs.
While a direct full tutorial was not found, this build is well-supported by Shelly devices’ typical usage and community projects involving the UNI module.
Please note that the provided link to the WiFi battery monitor is an advertisement and should not be included in the bullet points.
Stay connected and informed with this innovative solution, and happy sailing!
The Shelly UNI, an affordable and versatile device priced under 20 euros, is not only designed for building various alarms and inventions but also serves as a potential game-changer in smart-home technology, offering WiFi connectivity and integrated monitoring capabilities for gadgets like smart-home devices. Furthermore, its potential applications go beyond marine technology, making it a promising choice for battery monitoring in various domestic settings.
