Starting from the basics of analog-to-digital convertors, you gained knowledge of a process to be followed while working with ADC modules. You understood how critical it is to handle the analog data and why processors need separate cores to process this incoming data. We got a glimpse of a MCP3008 IC and its functionality. We made our own sensor station, which can be seamlessly integrated with any RasPi model. Then, you understood how the SPI functionalities can be ported to Python code and managed to get the data into the digital form. Data logging can now be done on .csv files to post-process the data. With this chapter, sensor interfacing and logging has become simpler than ever. Interface as many sensors you want, try with different sensors, and deploy sensor stations everywhere to retrieve the data.

In this chapter, we collected offline data, which can be post-processed after the data is logged. In the next chapter, we will upload the data online to see real-time graphs from...