基于红外传感器的CO2气体检测电路设计,文章详细介绍了红外CO2传感器的特性,内含电路原理图,以及程序流程图,需要的朋友可以看看.-Based on the infrared sensors of CO2 gas detection circuit design, the article introduced in detail the characteristics of infrared CO2 sensor, including circuit schematics, as well as

Scratch论文研究资料，重点是讨论Scratch的流程图程序设计对小学五年级几何概念及逻辑推理能力的影响。-Scratch paper research data, the focus is to discuss the flow chart of the Scratch program design on the five grades of elementary geometry concepts and logical reasoning ability.