ASP.NET Battery Monitor UI

I’m building a small UI that lets operators keep an eye on our battery-charging system in real time. The only job of this web front-end is to monitor battery status, nothing more complex for now, but it has to do that one thing well... (Budget: $30 - $250 USD, Jobs: .NET, .NET 5.0/6, .NET Core, ASP.NET, Blazor, Bootstrap, C# Programming, HTML5)