Wall WiFi thermometer with ESP, DHT22 and cable probe

Wall thermometer with microcontroller ESP8266 and temperature and humidity sensor DHT22 inside the box and cable probe with Dallas sensor DS18B20. Both temperature sensors are optional and it is also possible to connect more cable probes. 

Size of the case is 10 x 10 x 3,3 cm. This thermometer can be used together with ESPHome, Home assistant, Supla or any other SW of your choice. It can be hanged on the wall, fixed to some furniture or placed on the table.

All components are enclosed in well ventilated case.
For the precise measurements, not influenced by heat dissipated by the ESP dev board, the internal temperature sensor DHT22 is insulated by double wall.

Thermometer can be fixed to the wall by screw or fixed to any other subject by cable tie. In that case, pass the cable tie through both fixation holes.

There is a fixation for small PCB that can be used to connect wires, however it's not necessary to use it.

Reset and flash buttons can be pressed from the back side of thermometer by paper clip.

If you need more wired probes, you can cut the cover easily in CAD before printing or by knife. There is the dedicated area without ventilation holes. I believe that at least 3 DS18B20 sensors should fit in, but it has not been tested. 

Cable probes are fixed to the base by cable tie, to prevent damage of wires and connectors.

If you want to print the cover including thermometer logo and coloured border, choose the multi-material version of model.

ESP is powered by USB-C cable.

It is also possible to use another temperature sensors inside the box, not only DHT22. There is enough space inside the box to fit also another sensors or display. The case can also be used for any other ESP DIY project, not only for temperature measurement.

Enjoy it and I will be happy if you share you print or comments

Bill of material
ESP8266 NodeMCU Lua V3 USB-C
M3x6 DIN 912- 4 pc  (for mounting ESP)
M3x8 DIN912 - 1 pc (for mounting DHT22)
M3 hexagon nut - 1 pc (for mounting DHT22)
DIN 7928C - 2,9 x 13 - 4 pc (fix cover to base)

Printing settings
PETG is preferred
print on the textured sheet