Function mraa_sys::mraa_aio_init

pub unsafe extern "C" fn mraa_aio_init(pin: c_uint) -> mraa_aio_context

Initialise an Analog input device, connected to the specified pin. Aio pins are always 0 indexed reguardless of their position. Check your board mapping for details. An arduino style layout will have A0 as pin14 but AIO0.

@param pin Channel number to read ADC inputs @returns aio context or NULL