Dr. Beddow's instrumentation class has been building the 2016 version of the Cave Pearl datalogger for more than three years, and feedback from that experience motivated a redesign to accommodate a wider range of student projects while staying within the time constraints of a typical lab-time schedule. The rugged PVC housing from the older build has been replaced with an inexpensive pre-made housing more suitable for "light duty" classroom deployments. The tutorial includes a full set of youtube videos to explain the assembly of the loggers. We hope this simplified build supports other STEM educators who want to add Arduino-based experiments to their own portfolio of activities that develop programming and "maker" skills. 

https://thecavepearlproject.org/2019/01/11/pro-mini-logger-project-for-the-classroom-edu-version-2-2019/