## Send a message between two projects
# Author : sunghyun-an
** seunghwan ** and ** sunghyun ** bridge and node are connected.
At first, all five lights went out to find out what was the problem, confirmed that there was a problem with the cable, replaced the cable, and solved it.
It has the id of node 0, 1, 2, 3, 4 from the left.
I tried commands to each node through the Arduino serial monitor, everything was good.