In this article, we are going to integrate into our ESP32 or esp8266 an external flash memory in addition to the internal one.
Category: How to use external SPI Flash memories
SPI Flash memories (NOR Flash), they are a single chip that can be managed via SPI, and have high speed access and low power consumption.
The first SMT32 prototype boards don’t have an embedded SPI Flash, but the latest, like the WeAct STM32F4 board, has a footprint to add It. And for me, It’s very useful. The only problem Is that this Core doesn’t have a native library, so we will use the Adafruit one.