This research aims to: (1) define the working principle of the IoT-based DC power logger (2) testing the feasibility of the IoT-based DC power logger (3) analysing potency of doing experiment using the IoT-based DC power logger to learn dynamic electricity subjects for Senior High School. This research using the experimental method, with quantitative and qualitative data analysing method. The research resulted that the IoT-based DC power logger is working with the Node-MCU as the processor, Google Spreadsheet as the logger system, and the Blynk application for the IoT system. Calibration and validation result shows high accuracy of voltage and current measurement done with the IoT-based DC power logger. Survey done to the expertise shows result that the IoT-based DC power logger is suitable for dynamics electricity learning at high school level.
