How to create an I2C slave device using the STM32Cube Library
https://community.st.com/t5/stm32-mcus/how-to-create-an-i2c-slave-device-using-the-stm32cube-library/ta-p/49844
https://wiki.st.com/stm32mcu/wiki/Getting_started_with_I2C
https://community.st.com/t5/stm32-mcus/how-to-create-an-i2c-slave-device-using-the-stm32cube-library/ta-p/49844
https://wiki.st.com/stm32mcu/wiki/Getting_started_with_I2C