Hi all, Fist of all I want to apologize for not being able to express my self very well in english (as well for my misspelligns). I am just starting out with Node-Red and my programming background is only making easy programs for arduino (something simmilar to C++), and I am learning C# since fes …

Hi. You English is pretty good :+1: [image] e-Duardo: any idea to do that Yeah, all possible, start reading up on nodejs buffer . Buffer has swathes of functions for reading and writing bytes, words, floats, 32bit, signed / unsigned, BE, LE, and so on. For things like bit shifts, masking et…

Thank you so much for your hints, I think that now I got it! At least in the debug window I am seing what I expect.

Good stuff. It would be good to post your solution (screen shots, description, flow) for future readers to benefit from?

I tried a very simple flow. I connected the stepper via USB and it works, so I have a starting point. image|690x383 I have problems with the checksum. I tried a for loop but it caused the flow not to respond, so i summed the 0-7 bytes at once. You can see for loop, which is commented, so that you …

[image] e-Duardo: for(i=1; 1<8; i++)// You might want to look at what you are doing in this statement. Look very carefully!

ups!! no comment... :man_facepalming::flushed: Thank you again!

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(very newbie) "assembling" a message to be sent

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(very newbie) "assembling" a message to be sent

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