pico-eeprom24xx01

A C library for using a 24XX01 EEPROM with the Raspberry Pi Pico

The 24XX01 is a 1 Kbit Electrically Erasable PROM from Microchip. It is organised as one block of 128 x 8-bit memory and a I2C serial interface.

Wiring

EEPROM Pin	Connect to
1, 2, 3	NC
4 (Vss)	GND
5 (SDA)	Pico SDA (e.g. pin 8)
6 (SCL)	Pico SCL (e.g. pin 9)
7 (WP)	GND for r/w, or 3V3 for read-only
8 (Vcc)	3V3

In addition, add one pull-up 10k resistor each to SDA and SCL.

Software

1. Configure CMakeLists.txt in your base project to include the path to the pico-eeprom24xx01 library. Add pico-eeprom24xx01 to the list of target libraries. E.g. if the pico-eeprom24xx01 library is located one directory above (../) the current one your CMakeLists.txt file should include

.
.
.
include(pico_sdk_import.cmake)
add_subdirectory(../pico-eeprom24xx01/lib eeprom24xx01)

target_link_libraries(touch
        pico_stdlib
        hardware_i2c
        pico-eeprom24xx01
)
.
.
.

2. Use the library; see the examples directory.