I am protyping a project with several boards like microcontroller, charger, booster etc. for my bachelor's degree in electrical engineering. Now I want to switch from my prototype board and etch my own pcb. I already know how to etch the pcb but I'm not sure how to approach the Eagle schematics.
I want to have every single board (charger, booster, microcontroller etc.) to be able to plug in to my pcb so I can just unplug them whenever I want. Is it then better to just create a new board and plug in the measurements of each board manually or would it be best to import the seperate boards?
I have the board -eagle files from Adafruit https://www.adafruit.com/product/259, https://www.adafruit.com/product/1903 and I am thinking that I could import them and make my prototype pcb from this but it seems difficult. What would be the best approach here?