in the rack 2 temperature sensors one at the top and base Modular 3d printed model 2U rack housing Arduino temperature controller and OLED shown far left Using a Mega also enabled the PWM control and ...

Also works for SCD41, even the i2c address is the same - https://shop.m5stack.com/products/co2l-unit-with-temperature-and-humidity-sensor-scd41 i2c: sda: 16 scl: 17 ...