There are 5 repositories under xloader topic.
Simple CO2 meter using Arduino UNO-Mega board and popular CO2 sensors (SenseAir S8, Sensirion SCD30, Winsen MH-Z14 or 19 and Cubic CM1106). Operation modes: Normal, Calibration 400ppm, Alarm adjust and Altitud compensation adjust
xLoader is an utility to program or flash HEX file onto ATmega328 and other AVR Microcontrollers.