B4R Question sending HEX-Values

[newbie]

hi,

i need to send a string following with 3 times of 0xff to a nextion-display
I have try something like this

astream.Write("stunde.txt=15").Write(bc.HexToBytes("FFFFFF"))

but without no success on the display.

While i have no usb to serial connector , i can't test the display with a terminal-programm.
So i don't know is my b4r-code wrong or something in the display-programming

can someone tell me what is the correct codeline

thanks

 

[Erel]

Your code is correct. It sends the string followed by three FF bytes.

You can optimize it and write it like:

astream.Write("text here").Write(Array As Byte(0xFF, 0xFF, 0xFF))

Maybe you need to send a null terminated string?

Try it with:

astream.Write("text here").Write(Array As Byte(0, 0xFF, 0xFF, 0xFF))

 

[newbie]

Your code is correct. It sends the string followed by three FF bytes.

You can optimize it and write it like:

astream.Write("text here").Write(Array As Byte(0xFF, 0xFF, 0xFF))

Maybe you need to send a null terminated string?

Try it with:

astream.Write("text here").Write(Array As Byte(0, 0xFF, 0xFF, 0xFF))

Thanks, i think i have found the problem: text.values must be quoted like this
astream.write("textvalue.txt="abcd"").write.......
but how can i do this ??

 

[Erel]

Use double quotes:

astream.Write("textvalue.txt=""abcd""").Write(...)

Or:

astream.Write("textvalue.txt=").Write(QUOTE).Write("abcd").Write(QUOTE).Write(...)