I don't know the syntax of Java script, maybe it is similar to C++

Let us define following variables:
EntryTime = your entry format Dec=1234 which represent the time 12:34h
HexTime = output format Hex=1234 Dec=4660 to transfer to the Logo
AuxVar = auxiliary variable
TH = tens of hours
OH = ones of hours
TM = tens of minutes
OM = Ones of minutes

Declare variables as needed by Java script, then calculate as follows:

OM =EntryTime % 10; // extracting the 4 from 1234
AuxVar = (EntryTime - OM ) / 10; // will remain 123
TM = AuxVar % 10; // extracting the 3 from 123
AuxVar = (AuxVar - TM) / 10; //will remain 12
OH = AuxVar % 10; // extracting the 2 from 12
TH = (AuxVar - OH) / 10; // will remain 1
HexTime = 4096 * TH + 256 * OH + 16 * TM + OM

Maybe anyone know, how to insert such operations in Java script with the right syntax. The "%" is the modulo function to get the rest by deviding. If you have another entry format e.g. separated hours and minutes, this is no problem. Just declare other variables and use the same principle.

Regards, Scorp

Hi Scorp,

Converting from  Hex to decimal is  well understood.

How would you make  the opposite , convert from decimal do Hex ?   How would you write the script in C++ ?

Thanks,

M D

I have described the converter from dec to hex in my last entry. You have a decimal value 1234, which should be the time 12:34h and get the decimal value 4660, which should be the hexadecimal representation $1234.

If you mean anything else, then describe clearly. I have asked, from where the value comes. Do you have one or two entry fields as variables ?

Regards, Scorp

Hi Scorp,

Sorry for not being clear. Thank you very much for such complete explanation. 

Now i will try find a way to  " translate"  your  code  to Java script. 

Regards,

MD

The mathematical operations of my example are available in Java and similar in C++, but i don't know, how to insert in node red dashboard or the right syntax. I have never programmed Java either node red dashboard until now. Therefore you only can see the mathematical principles.

Regards, Scorp

Hi Scorp,

Based in your explanation find in  attachment  node-red node function to convert decimal to Hex > Hour representation.  Change var newMsg = { payload: EM}  for getting Hex > minutes. 

Regards,

Thank you for your help.

MD 

 Thanks!

AutoGen_5957274

Hi Scorp,

Based in your explanation find in  attachment  node-red node function to convert decimal to Hex > Hour representation.  Change var newMsg = { payload: EM}  for getting Hex > minutes. 

Regards,

Thank you for your help.

MD