They have holes for screw on, on top of the holes on the Arduino itself. Where can I find parts that are compatible with this case/cover? What was the intended use of this case/cover? Thanks.
1 Answer
The cover was developed for Arduinos with on-board Ethernet with POE and similar cover has the Ethernet shield with POE. POE - power over Ethernet is 48 V, so it is better to not to touch a soldering point with this voltage.
The arduino.org boards were sold with this cover. Some of them had on-board esp8266 and soldering points leading to esp8266 sensitive pins. Again, better not to touch.
I used the cover to attach the Arduino to a DIN rail over a DIN rail clip.
What was the intended use of this case/cover?
.... this question is unclear .... only you can answer what you intend to use the cover for