I would like to make a command block that when he found someone(testfor) in a specific condition (like, survival mode) a redstone signal will appear and activate another command block(the command doesn't matter)

If you can please to post a picture of how this setup (in redstone) should look like I will be pleased.


Place a command block with the /testfor @p[whatever] command.
Then, a redstone comparator facing outwards from the command block.
From there, place your redstone or any redstone contraption that needs the input.

Note: If the comparator's signal isn't strong enough (1 block worth of power), place a Redstone Repeater after the comparator and any output should now have 15 strength.

A comparator only outputs a signal power of 1 if the command succeeds. Add a repeater to make that 15.

  • Thanks for the picture @shanodin... I was going to take one right now, but you just saved me the work :)
    – aytimothy
    Oct 14 '14 at 6:59
  • Actually @WhynoTalos added the picture, I just edited in the alt-text :)
    – shanodin
    Oct 14 '14 at 7:16
  • 1
    You mean 15 strength, not 16, right? Maximum redstone signal strength is 15. (If you do mean 16, you can always rollback my edit) Sep 16 '20 at 3:47

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.