How to stack Wemos shields

I have a Wemos board, a Micro SD shield, and a OLED shield. I want to stack them together, but I'm not sure what is the best way to do it, and whether some connections need soldering or not.

I found three methods. Here is an imgur album with the pics, labeled 1-3. I guess (at least) the connections in the red areas need soldering.

  • Regarding method #1, which I like the most because it's the most compact: The underside of the upper(OLED) shield touches some components on the Micro SD shield below, and thus doesn't sit perfect on the plastic part of the headers. Also, the connections between the headers and the SD shield seems secure, so am I right to assume soldering is not needed there ?
  • Regarding method #2, I would shorten the long pins after soldering
  • Method #3 is method #2 but with the OLED shield under the plastic part of the upper headers(maybe to avoid soldering ?)

Also, does the microcontroller board need soldering on the pins which enter the breadboard ?

You only need to solder connections if you want them to conduct electricity. Do you want them to conduct electricity?

Yes, I'd like so. I'll go with method#2 and just solder everything.

my thoughts would be to put the OLED on the top.
#2 is probably how I would do it.

Here it is: Imgur: The magic of the Internet
Ignore the ugly soldering,it's the second time I'm doing it.

cpper:
Here it is: Imgur: The magic of the Internet
Ignore the ugly soldering,it's the second time I'm doing it.

Well, that was easy enough, wasn't it?

Now you can get little breadboards that you could use for a mount if you wanted.

Yep it was. I thought it would be far more difficult. Today I tested the unit and OLED+SD shield work flawlessly together. I had to solder a jumper(or whatever it's called) on the back of the SD module to change the CS pin from D4(used by a button on the OLED shield) to D0.

A IMU and GPS unit will be added to the breadboard.