I blogged about The quiet rise of E Ink Tablets and Infinite Paper Note Takers - reMarkable 2 vs Onyx Boox Note Air and my love for the Remarkable 2 e-Ink tablet. Now I see that Colby Newman is working on a .NET API for the Remarkable series of tablets. As you know, Dear Reader, I will install .NET on anything and everything so this is right up my alley. The NuGet Package is Remarkable.NET and the GitHub is at https://github.com/parzivail/ReMarkable.NET .NET Core is open source and cross platform and Remarkable.NET is build on .NET Core 3.1 which has binaries for ARM32 which sets us up nicely for use on the Remarkable tablet. I can download the build here https://dotnet.microsoft.com/download/dotnet/3.1 On my Remarkable I can go to Settings | Help | Copyright and Licenses to see my IP address and SSH root password. Now I can scp and ssh root@192.168.1.71 and enter the password. Note that ssh and OpenSSH is built into Windows 10 so you don't need to install putty or WinSCP but feel free if it makes you happy. Just a reminder though that Windows has OpenSSH or you can use WSL on Windows 10. After downloading .NET Core 3.1 to my local machine I use scp to copy to /home/root then I ssh into the Remarkable Tablet. Of course, your IP will be different.scp .dotnet-sdk-3.1.411-linux-arm.tar.gz root@192.168.1.71:/home/rootssh root@192.168.1.71
Sweet.
Now, per their docs, from my ssh session on the Remarkable, I unzip dotnet and mark it as executable.mkdir dotnettar xzf dotnet-sdk-3.1.411-linux-arm.tar.gz -C ./dotnetchmod +x ./dotnet/dotnet
Fantastic. This is an amazing project. There's even an emulator that uses OpenTK to draw, so I can test locally.
The docs sample code is very idiomatic .NET. Nice stuff. For example:// Create an imagevar img = new Image<Rgb24>(300, 300);// Do some image processingimg.Mutate(ctx => ctx.DrawLines(Color.Black, 3, new PointF(50, 50), new PointF(250, 250)));// Draw the image to the screenOutputDevices.Display.Draw(img, img.Bounds(), Point.Empty);
and// Exit when home button is pressedInputDevices.PhysicalButtons.Pressed += (sender, button) =>{ if (button == PhysicalButton.Home) CloseApp();};
This is very easy to read.
If your are ssh'ed into your Remarkable 2, you can start|stop the main Remarkable interface withsystemctl start|stop xochitl
You may want to do this when running apps ssh'ed in. There's also a community repository of free software for the Remarkable called Toltec. It's like homebrew or winget or apt get for Remarkable. And the dotnet runtime is already in the Toltec listing, which is cool.
I'm still exploring but I'm enjoying the ride! (as always, no warranty express or implied!)
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