When 3D printing with my enclosed printer, I found it unusual that the machine didn’t have a temperature or humidity sensor built-in to measure ambient machine temperature. Establishing and maintaining temperature & humidity allows for finer control of the 3D prints. Therefore I designed a Temperature / Humidity sensor setup using multiple 3D printed cases, an Arduino UNO, ST7735S 128x160 1.8" TFT LCD, DHT22/AM2302 Digital Temperature Humidity Sensor, and other various minor components. The sensor is hung on the side of the printer, has a built-in on/off switch, and the display keeps records of the high/low temperature & humidity. All code was written in Arduino programming language and I coded everything from scratch for my desired functionality beyond including basic libraries. Beyond its use for 3D printing, the Temperature / Humidity sensor has applications wherever it can be safely routed.





Project Links
- Arduino Project Box with locations for LCD/switch/wiring + closable wiring lid
- DHT22/AM2302 Digital Temperature Humidity Sensor Box / Holder / Case with Lid
- LCD Project Box with Header Breakout for 1.8" TFT LCD Display module ST7735S 128x160
- Github Code