Referring to the post you mentioned, I tried to make arduinos communicate via Tx, Rx pins, but somehow the information which I sent from master to the slave didn't receive on the slave end what was expected.
I have attached arduino codes for both Mega and Mini with this out. Please help me out if you find any mistakes in the code.
serial_mega.ino (3.42 KB)
serial_mini.ino (803 Bytes)