© Neil Cameron 2021
N. CameronElectronics Projects with the ESP8266 and ESP32https://doi.org/10.1007/978-1-4842-6336-5_20

20. OTA and saving data to EEPROM, SPIFFS, and Excel

Neil Cameron1  
(1)
Edinburgh, UK
 

The memory storage device for computers and microcontrollers is termed flash memory, which retains data when power is turned off. In contrast, data stored in RAM (random access memory) is lost when power is turned off. Flash memory is partitioned into several sections: application, OTA (over the air) updating, SPIFFS (Serial Peripheral Interface Flash File System), EEPROM (Electrically Erasable Programmable Read-Only Memory), Wi-Fi, and configuration information. A sketch is stored in application memory, and the variables created and manipulated ...

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