  The recent development of arrays of quantum dots in semiconductor
nanostructures highlights the progress of quantum devices toward large scale.
However, how to realize such arrays on a scalable platform such as silicon is
still an open question. One of the main challenge resides in the detection of
charges within the array. It is a prerequisite functionality to initialize a
desired charge state and readout spins through spin-to-charge conversion
mechanisms. In this paper, we use two methods based on either a single-lead
charge detector, or a reprogrammable single electron transistor. Thanks to
these methods, we study the charge dynamics and sensitivity by performing
single shot detection of the charge. Finally, we can probe the charge stability
at any node of a linear array and assess the Coulomb disorder in the structure.
We find an electrochemical potential fluctuation induced by charge noise
comparable to that reported in other silicon quantum dots.
