minicom script send double enter?

Question

I am trying to use minicom script. What I want from script is after I open up the minicom with

minicom -D /dev/ttyACM0 -S script.txt

where script.txt stores all command

send "\n\n"
send "lec"

the very first command I want to send is double enter ("enter key" twice) Then, send lec to get data

However, whenever I run the command only "@" is showed up. I saw https://linux.die.net/man/1/runscript that

send "\n" 

is recongzing new line so that is why I put

sned "\n\n"

for double enter.

Any advice would be appreciated!