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• Cable Tester v1.2

  borazslo • 04/13/2017 at 22:25 • 0 comments

  The Cable Tester v1.0 had some serious issues. That tester could detect non-connected cables/lines but it had problems recognizing miss-connected / switched cables. So I have made a plan for the newer version with the help of @davedarko's comment.

  Check out and test online the new circuit: https://circuits.io/circuits/4643590

  The new circuit needs a new box as well. But that is for another time.

• Cable Tester v1.0 (it's so bad)

  borazslo • 04/06/2017 at 20:27 • 0 comments

  The very fist version of the cable tester is very simple: four switches with four LEDs. When the cable connected you can switch on/off the buttons and the LEDs bright up if the line has connection. That seems simple and perfect. But ...

  Circuit:

  3d Printed Box:

  And the final and working product:

  So it works just fine. When I connect the XLR cable I can check to connectivity of the 3 main lines/pins and the chassis ground.

  Mismatched cables

  But what does this circuit do when some cables are connected but in a wrong way? Sometimes it works just fine (left picture), but in other cases it makes false OK signs (right picture). So it is time to make a better version of the circuit.

  
  

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