The ESP32 has a lot more internal RAM than the ESP8266 had. In this blog post we will show you how to use the ESP32 PSRAM in your projects.
ESP32 enable and use external ram (SPI RAM / PSRAM)
ESP32 - How To Use PSRAM • ThingPulse
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ESP32 – How To Use PSRAM
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D-duino-32 Dual ESP32 Development Board with two 1.3 OLED screens 8MB PSRAM
Use PSRAM
ESP32 Archives • ThingPulse
ESP32 - How To Use PSRAM • ThingPulse