I just got a Gikfun ISD1820 voice recording module for an Arduino project that I'm working on. I want to be able to record a few seconds message and then send the message over wifi to another Arduino Mega 2560, which will then play back the message.
The ISD1820 module can record and play back short messages and can be controlled from the Arduino, but I want to know if it is possible to access the memory / read-write the memory of the ISD1820 module to accomplish my goal. And how would I do it?
If it is impossible, what hardware should I get instead? Do I need a wave shield with a SD card or a wifi shield with an SD card?