Garmin Stellenbosch has discovered an ancient electronic device from the late 2010s, which we believe is the key to finding our next amazing team member.

We unfortunately bricked the device while trying to figure out what it does, but we managed to sample one signal from it before it died. The attached CSV contains this signal in volts, sampled at 1 MHz.

Can you extract a message from the signal, and show us that you're the team member we've been looking for?
