  The negatively charged nitrogen-vacancy (NV$^-$) center in diamond is a model
quantum system for university teaching labs due to its room-temperature
compatibility and cost-effective operation. Based on the low-cost experimental
setup that we have developed and described for the coherent control of the
electronic spin (Sewani et al.), we introduce and explain here a number of more
advanced experiments that probe the electron-nuclear interaction between the
\nv electronic and the \NN~and \CC~nuclear spins. Optically-detected magnetic
resonance (ODMR), Rabi oscillations, Ramsey fringe experiments, and Hahn echo
sequences are implemented to demonstrate how the nuclear spins interact with
the electron spins. Most experiments only require 15 minutes of measurement
time and can, therefore, be completed within one teaching lab.
