It might be awkward for us to directly say “I love you” to our loved ones in Chinese culture, if you have a micro:bit in hand, how could we use it to express our love? Now I am gonna make a heart-beating icon in the micro:bit display as below:
It is set for people who are too busy to water the plants. With the help of the temperature and moisture sensor, the soil moisture sensor and the light sensor, it’s able to detect the status of the plants and have the data displayed on the OLED dispay, also, the LED would light on for reminding us of watering the plants.
Build a car with the bricks and drive it as the indicator says with the AI Lens.
Before, we briefly introduced the basic knowledge of microbit programming, this week, we will learn how to program on the microbit LED display.
The novel Coronavirus is still existing in the world and we need to make sure the social distance be kept in public areas such as in hospitals or banks. This device will warn people who do not keep enough distances to others.
WS2812b is the kind of LED bead that I like most. It does not like common LED that needs IO control to every LED bead, nor like RGB LED that needs three pins to realize a colorful display. The biggest characteristic of WS2812b is that it can realize cascade connections. With an IO port only, you can control the color of all LED beads. Today, I am going to talk about the reason why WS2812b has this amazing function.