Ga, Seok-Hyun, et al. “Adapting Internet of Things to Arduino-Based Devices for Low-Cost Remote Sensing in School Science Learning Environments”. International Journal of Online and Biomedical Engineering (iJOE), vol. 17, no. 02, Feb. 2021, pp. pp. 4-18, doi:10.3991/ijoe.v17i02.20089.