Thanks for the nice code.

First of all thanks for the code you made.
I have a few questions.
If i use rostopic echo after catkin_make, the following error occurs.

if@if:~$ rostopic echo /dmac_node/raw
ERROR: Cannot load message class for [dmac/DMACRaw]. Are your messages built?

Can you tell me how to solve it?

Additionally, I would like to know if they use the same AT commands.

thank you
