Byte by Byte Decoding

[savaskorkmaz]

Hi there,

In forum, there are examples for byte and bit decoding. 

I need to decode 3 byte information to 3 different byte as a 3 different point. In my example, my 3 bytes point value is 46124.
If we decode, 
my first byte value will be 44
my second byte value will be 180 and
my third byte value will be 0

as 3 different points. I used a script like that and it didn't worked. Can you help me about it ?

value = event.getvalue()

bytes = { value:byte(1, #value) }

grp.checkupdate('32/1/1', bytes[ 1 ])
grp.checkupdate('32/1/2', bytes[ 2 ])
grp.checkupdate('32/1/3', bytes[ 3 ])

Thanks,

[admin]

For numbers up to 4 bytes you can use this function:

Code:

function getbyte(value, byte)
  return bit.band(bit.rshift(value, byte * 8), 0xFF)
end

value = 46124

b0 = getbyte(value, 0) -- 44
b1 = getbyte(value, 1) -- 180
b2 = getbyte(value, 2) -- 0