REther turtle program returning "attempt to call nil"

I am just trying to figure out how REther turtles work and I made this very basic program but it is returning "attempt to call nil"
What is wrong with it?
here it is:

k = peripheral.wrap("right")
k.setFreq(1)
if k.get() == true then
  print("yes")
else
  print("no")
end

Edit: Fixed, the peripheral was on the other side… oops :/

Split into new topic.