M291 R"Attention!" P"Pay attention to the sound of the relay.<br>You have to hear one click per sec.<br>Push X or U endstop to stop testing." S2

while !sensors.endstops[0].triggered && !sensors.endstops[3].triggered
  M42 P4 S1
  G4 S1
  M42 P4 S0
  G4 S1

M291 R"Did you hear the relay clicking?" P"Please click ""Ok"" if you heard." S3
if input == 1
  abort "Error: Relay is not working, please replace it."

M291 R"Attention!" P"Use a 1 m wire: connect one end to the Duex negative terminal, and touch the other to the relay terminal and the probe. A green light means success. Press X or U to exit." S2

M42 P4 S1

while !sensors.endstops[0].triggered && !sensors.endstops[3].triggered
  M106 P6 S1
  M42 P2 S0
  while sensors.probes[1].value[0] == {1000}
    M106 P6 S0
    M42 P2 S1
    G4 P100

M42 P4 S0

M98 P"0:/sys/essential/leds/resume.g"