Ms Access Leonardo

Hi, I have this proyect in which i need to scan and enter some information to a database in access.

After processing this data I need to send a comand I/O to an external valve with arduino. I do have leonardo.

What it is causing me trouble is how to send this bit saying to the physical proces Is ok to continue.

My guess is through a serial com, but quite sure how

I have read some posts in this blog but no sure hlw to handle this with MS Access Vba.

So, can you give some advice how can i proceed?

Maybe a google for vba access serial port (where the word access did not refer to the identical named program).

For receiving data on your Arduino have a look at the examples in Serial Input Basics - simple reliable ways to receive data.