Has anyone come across this error? "Binary received uncorrectly by the board: SHA256 mismatch" And yes it does say "uncorrectly". I was trying to upload a revised sketch over the air to my Nano33 IoT. It has worked in the past, and the original program has been running for weeks. I have restarted the Nano, and my system to no avail. Program compiles, but won't upload. Thanks for any help
It appears SHA256 is an algorithm, not a piece of hardware. Upload a link to the technical information and also post an annotated schematic as to how you have wired it. Show all connections and power sources.
I found the issue. It seems my USB shorted do to water. This is an outdoor hydroponic system. I did not have the USB power connection insulated well enough. On close inspection I had corrosion on the plug due to water. I plugged the Nano into my pc and the board cannot be recognized. Rookie mistake that I will learn from.
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That is the way we all learn. You now have another tool and experience in your tool box.
I'm getting these about every other time as well. An encryption mismatch is an interesting exception to be thrown by a short in the USB.
I'm using them in an outdoor environment, and they seem to lose functionality at around 105-115 degrees F. It may just be that they lack robustness, and aren't really any more than playthings, and shouldn't be used for anything that requires a micro-controller that can be used day to day.
Although, I will say, this is a recent issue, and I have the same issue with a second wifi 1010, attached to an IOT Carrier Rev1, so I'm more inclined to say that something pushed to the libraries changed recently(last 1-2 months) causing the the overall OTA instability. It worked like clockwork before that, now we have recommendations from Arduino to switch browsers in some cases, so that makes me believe that some code was pushed that wasn't quite ready.
it's worth noting that SHA256 is indeed a cryptographic algorithm, known for its idempotent properties. You can find detailed information about SHA-256 in this blog post: What Is SHA-256?.
However, as you mentioned, the operation of software can be influenced by hardware. If certain components of the hardware undergo unknown changes, it can lead to a SHA-256 mismatch. If you've already verified the SHA-256 results from another source and they are correct, it's reasonable to consider the possibility of environmental factors. This is a valuable insight, as hardware issues can indeed impact data integrity.
Hardware issues can indeed be challenging to detect. Would you mind sharing your process for identifying the hardware issue?
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