Nucleic acid testing has long been a part of our daily life as the epidemic has become normal. So can we make a simple nucleic acid sampling machine with simple equipment? Let's take a look at my work.
Temperature and humidity sensor is a module based on DHT11 digital temperature and humidity sensing element. It is sensitive to the ambient temperature and humidity changes and can be used for temperature alarm, humidity testing and other works.Now let's use it to measure the temperature and humidity of the surrounding environment.
This article is from a novice who used 2 micro:bit motherboards, 2 Nezha expansion boxes, and 4 rainbow lights from planet X sensor series to make eyes and hearts for cute Christmas characters. And she makes the beautiful but dull Christmas KET board dazzling.
I’d like to use the micro:bit to design a course. In this course, I need to use the micro:bit to combine building blocks, motors and crash sensors to make something interesting for the children, and also allow them to build the device.
I designed a simple top ejector. In the process of building, students can learn the knowledge about gear transmission, and then play games and competitions with their peers.
Urban noise pollution is recognized as the third major public hazard in today’s society. It is no less harmful to humans than other pollution. Data shows that under long-term noise stimulation, the cerebral cortex excites and inhibits excessive balance disorders, abnormal conditioned reflexes, and brain damage to vascular tension will have a great impact on the human body’s nerves, cardiovascular, digestion, immunity, endocrine system and fetal development.