This is my case for the Wemos Lolin D1 mini v4 ESP8266.
Please note that only the Wemos D1 Mini v4 fits in this case.
This is my first CAD construction ever so feel free to make improvement solutions.
Special credits go to my neighbour LS who inspired me with his version of this box for the Wemos D1 mini v3.
The author marked this model as their own original creation.