I've been wanting to start a project with the following requirements:
- Be able to display a static image, composed of 19x19 RGB pixels (though I expect to have to use a 20x20 matrix).
- Be small (in the region of 3-20cm along one side)
- Ideally include wifi support to read data from a simple web service.
However I don't really know where to begin. For a start I don't know where to source a 20X20 matrix (discrete LED matrix is fine), or if it would be better to use 4x 10x10 matrices and controllers (then I'm not sure how these could be used together.
I've been tentatively looking at Arduino, but also rasberry PI.
Could someone point me in a sensible direction as far as Platform, Matrix controller, or Matrix are converned? Thanks!