Over the weekend I worked on the Sharp LCD version of the Pocket CO2 project and things are starting to come together. This one uses the CH32V203 which has 64K FLASH and 20K SRAM. The nice thing about having a 128x128 LCD and an IMU is that the display orientation can follow the 4 possible device orientations.

#CH32V203
#scd40
#CO2

A video walk-through of my Pocket CO2 project. It's hard to gauge the scale and features from still images:

https://www.youtube.com/watch?v=Kik7NmzLE-k

#CO2
#scd40
#RISCV