This project is an Arduino ESP32 based CO2 sensor using a 1.28" round display. So far I've used oled and tft displays in square and rectagular shapes so this was an excuse to try a round one. The 3d printed enclosure is a friction fit with one screw holding the board in place. A fair amount of pressure is need to insert and remove the usb connector so this should help keep everything in place. I see this as an evolving project since the capacitive touch display is not used and there is plenty of room in the enclosure for other items. More details: https://github.com/mike-rankin/ESP32_Round_CO2_Desktop_Sensor.This project is reposted with the approval of this project creator. He is a good DIY maker who designs custom ESP32 IoT projects using Altium Designer, Arduino IDE and Fusion360. Welcome everyone to follow him. This is his GitHub account, Mike Rankin, where you will explore more excellent projects.