Project #25 - Movement - EEPROM - Mk09

https://www.donluc.com/?p=4283

https://youtu.be/xstOBCl4NA8

https://learn.dfrobot.com/makelog-314910.html

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EEPROM

EEPROM (Electrically Erasable Programmable Read-only Memory) is a type of non-volatile memory. EEPROM is a type of non-volatile ROM that enables individual bytes of data to be erased and reprogrammed. That is why EEPROM chips are known as byte erasable chips. EEPROM is usually used to store small amounts of data in computing and other electronic devices. It is used in computers, usually integrated in microcontrollers such as smart cards and remote keyless systems, or as a separate chip device, to store relatively small amounts of data by allowing individual bytes to be erased and reprogrammed.

The microcontroller on the Arduino boards have 512 bytes of EEPROM: memory whose values are kept when the board is turned off. Functions in the EEPROM class are automatically included with the platform for your board, meaning you do not need to install any external libraries. The supported microcontrollers on the various Arduino have different amounts of EEPROM: 1024 bytes on the ATmega328P, 512 bytes on the ATmega168 and ATmega8, 4 KB (4096 bytes) on the ATmega1280 and ATmega2560. The Arduino boards have an emulated EEPROM space of 1024 bytes. The EEPROM library on ESP32 provides a reliable way to store data persistently, so that it remains accessible even when the power supply is disconnected. Unlike RAM, the data we save with the EEPROM library does not get lost when power is cut. This feature makes it an ideal choice for retaining configurations, settings, and other important data in embedded devices like the ESP32.

DL2501Mk07

1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 2.0" 320x240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Crowtail - I2C Hub 2.0
1 x Crowtail - 3-Axis Digital Compass
1 x Crowtail - 3-Axis Digital Accelerometer
1 x Lithium Ion Battery - 1000mAh
1 x Switch
1 x Bluetooth Serial Terminal
1 x USB 3.1 Cable A to C

FireBeetle 2 ESP32-E

SCL - 22
SDA - 21
DC - D2
CS - D6
RST - D3
RX2 - Bluetooth
TX2 - Bluetooth
VIN - +3.3V
GND - GND

DLE-EEPROM-UID-ESP32Mk001

DLE-EEPROM-UID-ESP32Mk001.ino
getEEPROM.ino
setup.ino

DL2501Mk07p

DL2501Mk07p.ino
getAccelemeterADXL345.ino
getCompassHMC5883L.ino
getDisplay.ino
getEEPROM.ino
setup.ino

People can contact us: http://www.donluc.com/?page_id=1927

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Luc Paquin – Curriculum Vitae - 2025
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