View memory available on nanoFramework Esp32

Once I started on the C# journey it really is hard to stop... so here I am again showcasing one of the most amazing finds in my micro controller development career, nanoFramework. This bad boy allows you to write C# code for low-level micro controllers, specifically an ESP32 in my case.

As my journey continues one of the main issues I have is keeping track of memory, I normally don't care about it when developing lets say a Asp.net Core Web API application, but when dealing with ESP32 controllers with KB of memory, it makes a huge difference managing memory!

I didn't find much online in how to do this, but upon browsing discord and getting some feedback from other users (thanks @AlbertK) I have this little snippet!

using nanoFramework.Hardware.Esp32;
using System.Diagnostics;

namespace Project.Helpers
{
    public class Diagnostics
    {
        public static void PrintMemory(string msg)
        {
            NativeMemory.GetMemoryInfo(NativeMemory.MemoryType.Internal, out uint totalSize, out uint totalFree, out uint largestFree);
            Debug.WriteLine($"{msg} -> Internal Mem:  Total Internal: {totalSize} Free: {totalFree} Largest: {largestFree}");
            Debug.WriteLine($"nF Mem:  {nanoFramework.Runtime.Native.GC.Run(false)}");
        }
    }
}

So the main one you care about is the nF Mem, this is going to tell you how much memory is available to your nanoFramework application. I personally have a heartbeat service that runs every 15 seconds toggling the internal LED and printing out this call so I know how much memory my application is consuming!