Lilygo poe -esp32 or Olimex poe esp32?

Hardware
1

Hi,
I am new to smart home thing but I have experience in IT. I want to create all connections wired and with POE. Which one do you think I should choose?

2

I have about 20 Olimex ESP32-PoE deployed. They are awesome!

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3

Thats awesome! since i am new to this i have basic questions.

  1. how many (max.) sensors can i connect to one olimex unit?
  2. what kind of sensors should i choose for long term usage?
  3. i heard about mqtt . can i use it in olimex and should i ?
  4. may i use any kind of poe switch ?
  5. how to define IP adress to olimex?

Thank you mate…

4

  1. depends on the sensors. You can also expand the io with an arduino mega connected to the esp via serial interface.

  2. basically anything that works with arduino. but be aware, esp32 is a 3.3v platform, while arduino is a 5v platform. you might have to use voltage deviders or level converters.

  3. I am using MQTT with it, but you could also use ESPHome

  4. I used cheap TP Link PoE switches, but I am moving to Ubiquiti now. So, should work with all PoE switches.

  5. Use DHCP.

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