Add HEX mode to Serial Monitor

[night-ghost]

Describe the request

Add a mode to Serial Monitor for printing hexadecimal data.

Describe the current behavior

Serial Monitor does not support interpreting data as hexadecimal.

Arduino IDE version

d6a4b0f

Operating system

All

Operating system version

Any

Additional context

Related:

• Serial Monitor plugin system to be able to add protocols like VT100, VTX, VTnnn, etc. #406

Issue checklist

• I searched for previous requests in the issue tracker
• I verified the feature was still missing when using the latest nightly build
• My request contains all necessary details

[cousteaulecommandant]

This might be useful. Some serial port terminals such as gtkterm have a similar feature. The displayed format could be similar to the one from the hd command, displaying both hex and (extended) ASCII.

[Avamander]

Maybe it could be possible to instead allow launching external terminal software? I don't think Arduino IDE's Serial Monitor is worth time spent on improving it. There are times better programs that could instead be launched by the IDE.

[rin67630]

There are times better programs that could instead be launched by the IDE.

...if that could be done user-friendly i.e. so that the serial port gets released to compile automagically.