Added explicit type cast to fix compile error

[weberfa]

The added explicit type cast fixes the compile errors described in issue #49.

[adriaanb]

I can confirm that this fixes #49.
Are there plans to merge this?

[bgigous]

Seems to me like this repository isn't being maintained. Is there an active fork? I was running into the same issue.

[gyssels]

@weberfa @bgigous and @adriaanb I will accept PR on gyssels/Arduino-CmdMessenger, and I messaging the other PR submitters so its can became an active branch
I engage myself to do a full PR back here if in the future I'll not maintain this anymore.

[thijse]

Hi, I will do my best to make time to review and take in these fixes in the main branch during the coming week. Thanks for your help
!

[gyssels]

@thijse it will be great, I'm here to help.
I will need something in .Net5 and packaging in nuget.

[ovianao]

Hi, wondering if this will be merged?