3D Print Case for Arduino Uno with LCD Shield and DHT22

cults3d

This is my design for Arduino Uno paired with an LCD Shield and attached DHT22 Temperature Humidity sensor module. While designing the box, I aim to achieve a remarkably small size. To make it compact, the sensor is positioned at the back of the case. Unfortunately, this created a significant issue. Due to its proximity to the circuits, the sensor absorbs heat from the electronics inside the box. In my experience, I have observed approximately +4 degrees C temperature increase after installing in place. You may want to consider this factor and it might be wise to keep the sensor completely outside of the case. A small enclosure can be created separately for the sensor itself and placed a short distance away from the main circuit to ensure more accurate measurements. This project is powered using an ordinary 9V adapter. All fasteners, such as bolts and nuts, are M3 (Metric 3) in size with lengths of 16mm. There are two holes (4mm dia.) located in front of the box for "Select" and "Reset" buttons underneath. You can design your own buttons or leave them as they are to be used with a pointed object when necessary.