Hello @wsuwa.1 ,
This ads1115 works with I2C communication ,you need to configure your I2C using STM32CubeMX then you can generate the code and manage your communication using HAL library.
ADS1115 I2C address is 0x48.
I recommend you follow this wiki for more details about the MX configuration : Getting started with I2C - stm32mcu
Hope my answer helped you!
Foued
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