  Using an array of coupled microwave resonators arranged in a deformed
honeycomb lattice, we experimentally observe the formation of pseudo-Landau
levels in the whole crossover from vanishing to large pseudomagnetic field
strength. This is achieved by utilizing an adaptable set-up in a geometry that
is compatible with the pseudo-Landau levels at all field strengths. The adopted
approach enables to observe fully formed flat-band pseudo-Landau levels
spectrally as sharp peaks in the photonic density of states, and image the
associated wavefunctions spatially, where we provide clear evidence for a
characteristic nodal structure reflecting the previously elusive supersymmetry
in the underlying low-energy theory. In particular, we resolve the full
sublattice polarization of the anomalous 0th pseudo-Landau level, which reveals
a deep connection to zigzag edge states in the unstrained case.
