Raspberry Pi 2 (or B+) case with DB9/DE9/DE15 RS232/VGA hole

thingiverse

This remix uses the bottom of the "Raspberry Pi 2 (or B+) case with VESA mount case" from 0110-M-P and adds the top. The resulting hole fits any DB9 (=DE9), mainly used for RS232 ports, and DE15, commonly used for VGA ports. I am currently using a Raspberry Pi 2 to interface with an old Texas Instruments 924 CRT terminal. Instructions First, I imported the STL file of this remix into Sketchup and added a DB9 hole. Then, I exported it again as an STL file. When printing, it's essential to use supports. Remove the display connector from the Raspberry Pi 2 by desoldering and removing the connector. Next, unscrew the bolts on the DB9/DE9/DE15 connector and put it through the hole. Afterward, screw the connector back in with washers when needed. Alternatively, instead of finding a way to attach the RS232 PCB to the Raspberry Pi's PCB or the case, you can search online for tutorials like the one provided: http://www.davidhunt.ie/add-a-9-pin-serial-port-to-your-raspberry-pi-in-10-minutes/, specifically recommending a 5V capable RS232 with a MAX3232 chip.