In this work, we have developed an alternative device composed by an Arduino board and an INA219 sensor to experimentally obtain the mathematical formulas describing the charge and discharge of the capacitor for educational proposes. We have obtained excellent agreement between theoretical prediction and experimental measurements. The INA219 DC sensor can measure direct current up to 26 V/3.2 A with a maximum error accuracy of 1%. The device makes it possible to follow the temporal evolution of the voltage and the current at a capacitor’s terminals. This platform can provide an alternative way for educational use compared to the expensive laboratory equipment (oscilloscope, voltmeter, generator). Indeed, we think that the presented device can play a dominant role in teaching and learning electricity courses in secondary schools due to its low cost, small size, reliability in measurements and good level of accuracy.

在这项工作中，我们开发了一种由 Arduino 板和 INA219 传感器组成的替代设备，以通过实验获得描述电容器充电和放电的数学公式，用于教育建议。我们在理论预测和实验测量之间取得了极好的一致性。INA219 直流传感器可以测量高达 26 V/3.2 A 的直流电流，最大误差精度为 1%。该设备可以跟踪电容器端子处电压和电流的时间演变。与昂贵的实验室设备（示波器、电压表、发生器）相比，该平台可以为教育用途提供另一种方式。事实上，我们认为所提出的设备由于其成本低，可以在中学电力课程的教学和学习中发挥主导作用，