Which ESP32-WROVER-B board is this?

Projects Programming
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20241018_122728
20241018_1227281284×2919 481 KB

20241018_123527
20241018_1235271599×3371 558 KB

I found this ESP32-WROVER-B board that I bought about 2 years ago and never used and now I have a nice project this board could come in handy.

HelloWorld in the IDE was pretty straightforward, but my question is regarding the extra good stuff this board has:

  1. What are the speakers outputs? Does it have an audio amplifier? How do I use it?
  2. There is also a microphone input (less interesting for this project), how do I use it?
  3. What is the antenna for?
  4. Any relevant tech sheet

Thx

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TTGO T-Call?

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