ESP32 Forum

Hi.
I have an embedded system with ESP32 (ESP32-D2WD), connected using serial (ttyS device).
I establish a connection and I've read the MAC address of the ESP using esptool.py.

I thought to start with programing a basic "Hello World" program and load it to the ESP but I don't know where to start.
The target is that at the end I will be able to program the controller to open a WIFI network/Bluetooth connctions.

thank you.

It depends on how you learn. There's a ton of text and video tutorials out on the Internet - you can look those up if you want. If you learn better by doing, there's an 'examples' directory in the esp-idf tree that has examples you can flash and tweak to your desire.