Big brother of ESP-WROOM-32, ESP32-WROVER with 4MB PSRAM
This time I got ESP32-WROVER, which has 4MB PSRAM. Indeed main chip of WROOM and WROVER are the same but the latter has external (additional) PSRAM and it can be activated by compiling switch. (If we do not do anything about complile option, then WROVER is equivalent to WROOM. At this moment I don't explore well about this big brother but it should be fun to think about new application!!
