  We present the current status of the I2C stellar intensity interferometer
used towards high angular resolution observations of stars in visible
wavelengths. In these proceedings, we present recent technical improvements to
the instrument, and share results from ongoing campaigns using arrays of small
diameter optical telescopes. A tip-tilt adaptive optics unit was integrated
into the optical system to stabilize light injection into an optical fiber. The
setup was successfully tested with several facilities on the Calern Plateau
site of the Observatoire de la C\^ote d'Azur. These include one of the 1 m
diameter telescopes of the C2PU observatory, a portable 1 m diameter telescope,
and also the 1.5 m M\'eO telescope. To better constrain on-sky measurements,
the spectral transmission of instrument was characterized in the laboratory
using a high resolution spectrograph. The system was also tested with two of
the auxiliary telescopes of the VLTI resulting in successful temporal and
spatial correlation measurements of three stars.
