![]() In Arduino UNO (ATMEGA328), the number of write/erase cycles for flash memory is limited to an average of 10,000 cycles. You’re probably aware that the ATMEGA328 microcontroller used in the Arduino Uno has 32 KB of flash memory. ![]() This is identical to the BIOS on a general-purpose computer. In simple terms, the program you upload to the microcontroller as a hex file is saved in Flash memory. Flash memory is known as Non Volatile memory. Flash memoryįlash memory is a type of memory that is used to store data that does not alter over time. There are various types of memories, including Flash memory, cache memory, RAM, and EEPROM. Using the EEPROM put and EEPROM get functions, the software below illustrates how to read and write to EEPROM. You”ll also learn how to use EEPROM in Arduino and ESP microcontrollers (ESP8266 and ESP32).
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