Store a Value in EEPROM
Write and read non-volatile settings.
Memory That Forgets
Normal variables live in RAM, which wipes clean the moment power drops. To keep a setting around, you need memory that remembers.
Meet EEPROM
EEPROM is a small block of storage built into the chip that survives power loss. Think of it as a tiny notepad that stays written.
All lessons in this course
- Why Buttons 'Bounce'
- Debounce with millis()
- Store a Value in EEPROM
- Remember a Counter After Reset