  The Multiple Sensor Interface is a simple sensor interface that works with
USB, RS485 and GPIO. It allows one to make measurements using a variety of
sensors based on the change of inductance, resistance, capacitance, and
frequency using the same connector and same electronic interface circuit
between the sensor and the microcontroller. The same device also provides some
additional connectors for small voltage measurement. Any sensors used for the
measurement of distinct phenomena can be used if the sensor output is based on
inductance, resistance, capacitance or frequency within the measurement range
of the device, obtaining a variable precision depending on the used sensor. The
device presented is not meant for precise or accurate measurements. It is meant
to be a reusable hardware that can be adapted/configured to a varied number of
distinct situations, providing, to the user, more freedom in sensor selection
as well as more options for device/system maintenance or reuse.
