During the pandemic period, we were forced to reconsider teaching of practical labs, as students had mainly to work at home. It was the occasion to explore the use of cheap microcontroller kits for teaching chemistry and to work out some manipulations with household products. Back to normal life, it is important to valorize this equipment and work to design simple chemistry experiments which could be performed by students at home with Arduino kits adapted to chemistry, to illustrate various courses in addition to classical manipulations performed in the laboratory with specific equipment and products. We describe here the construction of a simple and cheap Arduino-based fluorimeter and its use to study relative porphyrinoids (mainly chlorophylls and pheophytins) contents in olive oils, and the effect of heating on the degradation of such substances. We used an Arduino Uno kit with a LED, a light-to-frequency converter associated with an excitation-blocking filter, and a 3D-printed sample holder.

疫情期间，由于学生主要在家工作，我们被迫重新考虑实践实验的教学。这是探索使用廉价微控制器套件进行化学教学以及对家用产品进行一些操作的机会。回到正常生活，重要的是要评估这些设备并努力设计简单的化学实验，这些实验可以由学生在家中使用适合化学的 Arduino 套件进行，以说明除了在实验室使用特定设备进行的经典操作之外的各种课程和产品。我们在此描述了一种简单且廉价的基于 Arduino 的荧光计的构造及其用于研究橄榄油中相对卟啉（主要是叶绿素和脱镁叶绿素）含量的用途，以及加热对此类物质降解的影响。我们使用了带有 LED 的 Arduino Uno 套件、与激励阻挡滤波器关联的光频转换器以及 3D 打印的样品架。