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Is there a mecahnical or electrical way to find out if a raspberry pi 3b has crashed? measuring voltage at a certain pin or similar?

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    you could write a python script that pulsed a pin on and off then you could check to see if it was pulsing with another circuit or something... – scitronboy Mar 28 '18 at 15:31
  • @scitronboy Why not make that an answer? The Pi does have watchdog support. – joan Mar 28 '18 at 17:02

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