Need help making a wireless data bridge

Hi I am new to RouterOS an I want to create a wireless databridge. (Don’t know if that is what it is really called) basically: I have 2 router boards, and 2 wireless cards both same make and model. The router booted up just fine and I use Winbox to access the settings.

I want to one of the router to broadcast a wireless signal and the other board to pick the signal up and allow the data to be sent to the destination via Ethernet, What I am planning to do is to have 2 micro controllers to talk to each other and send data between them.

i know I can get other off the shelf Access Point
PLEASE HELP

Set one routerboard wireless as AP Bridge or Station and configure the channel and security profile. Then set the other routerboard as station bridge with the same channel and security profile.