The repo name speaks for itself. Use this code if you wish to collect MQ7 analog (non-discrete) Carbon Monoxide (CO) data and log to CSV files. Was tested recently and works, at least with an Arduino ...

How to Use the ADC121C_MQ7 Arduino Library The ADC121C_MQ7 has a number of settings, which can be configured based on user requirements. 1.Automatic Conversion mode: When these bits are set to zeros, ...