TundraThis won't stop me from using these circuit boards either without OLED or in other projects outside of the 1551V2 enclosure; but I found a stupid mistake while soldering the first one up. I got the orientation of the OLED i2c header rotated by 180 degrees. The i2c header for the BME280 breakout board is wrong too but that turns out to be a good mistake as I didn't allow enough vertical room for it to be mounted with a 90° header like I planned, so mounting it the "wrong orientation" works fine. The OLED however is upside down and would stick out of the enclosure. Oops. The good news is that I can just leave it off normally and take the cover off and plug it in when needed.
Soldered up board with OLED installed
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Since it's a through-hole header, you could probably just mount the OLED and buttons on the back of the board instead, and that would allow it to not stick out... just be on the wrong side ;)
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That would work, actually - just mount the board flipped upside down in the case. The OLED is on a pluggable header (specifically so it can be overlapping at a level above the ESP8266 - see the log update on 2/19 for a view of this stackup from an earlier prototype), but the BME280 and the ESP8266 are both soldered with header pins (but not pluggable). I'd keep the OLED module soldered to it's header in the orientation is currently has, but for the ESP and the BME, mount the header pins on the 'top' (relative to where they are mounted currently on the 'bottom'). One possible issue that I don't know if it would be a big deal or not is that would put the shield can of the ESP up against the circuit board (would likely need to insulate the inner row of pads so they can't short on it).
I'm planning on making several of these sensor boards, and they don't all need displays, so the one I made up last night won't go to waste; but I can try one out in this orientation and see how it goes.
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