Introduces device tree bindings for custom ADC voltage and current sensors,
allowing for flexible configuration of sensor inputs and associated GPIOs.
This enables proper hardware abstraction for ADC measurements.
The example overlay file
has been removed as its content is now integrated or superseded by the new
binding definitions.
Adds a new `adc_sensor` library to abstract reading analog values from ADC channels. The output of this library is currently simulated.
This library is now used by the `modbus_server` to read the motor current and the main supply voltage, replacing the previous implementation. This change improves modularity by centralizing ADC-related code into a dedicated module.
The build system has been updated to include the new library.
Eduard Iten