Arduino Rev 4 Wifi

Official Hardware Classic UNO R4 WiFi
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I overwrote the default sketch on my Rev 4 wifi. I have a second one. Can I read the default sketch on the second Uno Rev 4 and save it. Secondly, can I write to the first one.

Essentially, can I clone the second one to the first one?

Jeff W Waldrop <----- New to arduino.....

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Welcome to the forum

The default sketch is amongst the examples installed with the board files. It is called MatrixIntro.ino

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Thank you, Bob. Is it still safe to assume, one can read the sketch off the board into the arduino IDE? Suppose I have forgotten what the last sketch I save to it does?

Jeff

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Thanks,

Jeff

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It depend on controller settings, the code could be locked.

But even it available, the code that can read from the device has nothing common with sourcecode in the IDE. There are no sketches in the device, it is a compiled binary code firmware. It is impossible to turn binary code back into an Arduino sketch.

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It is not a straight forward process and requires other hardware to do it.

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