I was thinking the other night how great it would be to have an MCU that had these capabilities:
- Ethernet connectivity
- Passive/Active POE
- 4MB+ Flash
- 48 MHZ+ clockspeed
- Optional Wifi (not really a need with Eth)
- 10+ useable GPIO pins
If you think about it, 95% of the devices you have required a DC current and most of the time within the house that’s supplied from an ACDC adapter, that requires a wall socket. Why not just use PoE with 5-6v and a splitter?
I have seen a few ESP32 units offering as such, but at a considerable price, and to be honest, the ESP32 is a beast and is really overkill for most basic home automation tasks.
An IC like an ESP8266 / ESP8285 or the SAMD21 would be great for most things I would think.
I have been contemplating building my own module with an ESP-12, line driver and magnetics chip, and just splitting the PoE out or look at an active circuit.
Currently, I am just building a basic system with a PoE splitter to ethernet module SPI connection to an ESP8266. It’s bulky and if it was all on the one PCB it would be 2-3x more compact.
Have any of you found anything like this (with the “affordable” in mind lol)? or is it even worth putting the time into designing something like this?