If you want to communicate with direct byte values, don't use println() method but the print() or better write() method.
print() will still convert the value to a string prior to sending. The only function to use to send binary data is write().
If you want to communicate with direct byte values, don't use println() method but the print() or better write() method.
print() will still convert the value to a string prior to sending. The only function to use to send binary data is write().