ESP-12 breadboard adapter

This is an adapter to allow ESP-12 modules to be programmed or used with breadboards.

If using lots of these modules then it is good to have a convenient way to mount and use them before any final soldering / integration takes place.

The 3d prints allow spring pins to be used to match the 2mm spacing used on these modules. The pins mate through the holes on the module and allow the module to be just pushed in place. A retaining bar may be used to provide a more secure fit, although for quick programming this may not be needed.

The width of the adapter is kept to a minimum so that when inserted on a breadboard holes are still accessible.

Parts required are 3d printed parts, 16 spring pogo pins (1mm diameter 16mm long, eBay packets of 100), 2 8way single in line jumper posts (cut off longer strips), 2 M3 30mm countersunk screws and nuts.

1) Prepare each pogo pin by soldering a fine wire about 3.5mm up from base. I used 0.2mm wire got from a multistrand cable. It is impor