Now, there are more and more embedded operating systems, such as the well-known uCOS, FreeRTOS, RT-Thread, etc. Each of these operating systems has its own characteristics:Which RTOS have you used in STM32 embedded development? This article will introduce a simple and user-friendly embedded operating system kernel – KLite. KLite Source Code Source code link:https://gitee.com/kerndev/klite The … Read more
We are all familiar with processes and threads, but their terminology might differ in RTOS systems. The term we are familiar with is Task (Task), which is similar to Thread (Thread). You will find that in some places, RTOS tasks are also referred to as threads. However, in RTOS, there is another less common program … Read more
/ Author Introduction / This article is contributed by Xiaweizi, sharing the development of desktop shortcuts, which I believe will be helpful to everyone! Thanks to the author for the wonderful article. Xiaweizi’s blog address: http://xiaweizi.cn/ / Introduction / The Shortcuts feature was introduced with Android 7.1 Nougat, mainly aimed at allowing users to define … Read more
Hot Articles Overview | Click Title to Read 2018 is Coming, BAT and Other Internet Companies’ Android Interview Questions Summary Advanced Android and Java Architecture Video Sharing Details and Principles of QR Code Generation MVP Kotlin Official Address https://github.com/googlesamples/android-architecture/tree/dev-todo-mvp-kotlin/ Looking at the official website, we find that the actual code amount comparison is less than … Read more
(This series of tutorials are all based on the “Upload Execution” mode of Mind+, software version V1.1) Introductory Video Tutorial: Introduction to Mind+ Platform Mind+ is a programming software for teenagers developed based on Scratch 3.0, supporting various open-source hardware such as Arduino and micro:bit. You can complete programming by simply dragging graphical program blocks, … Read more
01 Introduction The touch button is a type of switch based on capacitive sensing, which can be activated by direct contact with the sensor’s metal surface by a human body or metal. 02 Principle The touch sensor module is a capacitive touch switch module based on the touch detection IC (TTP223B). When the module’s metal … Read more
01 Introduction The button, also known as a tactile switch, can create very interesting interactive projects when used with other sensors. In the image below, you can see a red button and a blue button; they only differ in color, but their usage is the same. 02 Principle When you press the button, you can … Read more
Hello everyone, this is the second lesson, where we will add an ultrasonic sensor to the previous programming car. The main function of the ultrasonic sensor is to measure distance, and using this feature, we can create very useful things. We’ll talk about the projects later; first, let’s get familiar with the sensor. Ultrasonic Sensor … Read more
Click the aboveScience Classroom to subscribe for the latest technology education information _ As the saying goes: A year’s plan starts in spring! During this extraordinary time of delayed school openings and staying home to combat the pandemic, as educators, we need to learn proper pandemic prevention knowledge, implement control requirements seriously, and more importantly, … Read more
01 Introduction PWM servos are controlled by PWM signals, allowing instantaneous angle changes, with good responsiveness and strong locking capability, but lower precision. 02 Principle Analog and Digital Signals First, let’s understand what analog and digital signals are: Analog Signal: The micro:bit can output a voltage between 0~3.3V, with parameter values and return values ranging … Read more