Does anyone know of a cheap reliable low power Arduino like device that has a few pins (~10) for external connection that has a wired RJ45 ethernet jack (for ethernet) and well supported libraries.
Requirements are non-radio because
1. Power will be by power over ethernet, PoE, to this and fan-out devices,
2. Radio space is crowded which could lead to reliability issues,
It must have enough memory for some basic network programming and be a good price as I need 22 of these.
Off the shelf better than getting parts for and soldering up 22.