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Arduino

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  • Am I on the right track? ... that depends on whether pins 1 and 2 are supposed to be shorted together Commented May 21, 2021 at 0:16
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    write down the exact step-by-step procedure in great detail ... the resulting description will translate to code almost directly, if you include enough detail Commented May 21, 2021 at 0:19
  • @jsotola yes, done Commented May 21, 2021 at 3:11
  • if that is the most detailed description that you can write down, then you have a lot of thinking to do ... tests pin 1 - 2 to see if they're connected is not anywhere near one line of code ......... a cable has two ends ... call them left and right ... I am talking about a description something like, set each pin on left as inputs, set each pin on right as inputs, set left pin 1 to output, output LOW on left pin 1, check state of right pin 1 ...... Commented May 21, 2021 at 4:45
  • Do you consider shortcuts as an error? Then you need to check for them, too. -- At least in the history of computer cables, there are a several variants that have connections between two (or more) pins on the same side, without being connected to the other side. -- Other cables might connect one pin of one side to multiple pins on the other side, for example for ground. -- Some USB charger cables have resistors between pins that must fall into a certain range. -- You see, this task is not trivial, if you like to check non-trivial cables. Commented May 21, 2021 at 9:49