Hi BLH64 !
Thanks in advance from your help!
With remainder "%" I found a sketch which use it and realized 4 cut ,from thousand to unit of my analog input
The serial monitor display the 4 cut of 0 to 1023 into 1 0 2 3 ( four bytes) .
And can display my four bytes into HEX byte with the function HEX with the code :
"Serial.print(analogInput, HEX);"
But
This is with the I2C communication where I have some problem ,in particularly to convert the value into HEX value
Like Serial.print ,I tryed that :
"Wire.write(analogInput, HEX);"
Without any success > Error code
I'm tested different code to convert directly a decimal value from my analog into hex value on I2C ,but I'm so stopped now .
If you have any idea ,thanks in advance