elixir_ale provides high level abstractions for interfacing to GPIOs, I2C buses and SPI peripherals on Linux platforms. Internally, it uses the Linux sysclass interface so that it does not require platform-dependent code. elixir_ale works great with LEDs, buttons, many kinds of sensors, and simple control of motors. In general, if a device requires high speed transactions or has hard real-time constraints in its interactions, this is not the right library. For those devices, it is recommended to look at other driver options, such as using a Linux kernel driver.