Processing an I2C write from master to slave

[pgrlopes]

Hello.

First of all thank you for the informative guides you made on the I2C topic. I'm following this in particular right now: http://www.lucadentella.it/en/2017/10/09/esp32-23-i2c-basic/ and I got a solid understanding of the protocol and I successfully initialized the a slave module but I need to set an ESP32 as a slave device and another microcontroller (PSOC 5) will be the master. I was wondering if you have any or know of any examples on simply processing the information sent from the master in the loop() function of the arduino IDE (which im using to program the esp32), ie, accessing the data string sent by the master and answering with the ACK.

Thank you.