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
01 Introduction The PWM motor is controlled by a PWM signal, allowing for precise control of rotation speed and high torque compared to a regular DC motor, although it does not achieve as high a speed. 02 Principle For an introduction to the principle of PWM, please refer to my previous article on PWM servos. … Read more
Target shooting games are often popular at fairs. Today, we will create a game using micro:bit that can be played at home. Materials One Micro:bit board One power module providing 5V and 3.3V output One MG90S servo motor One photoresistor Several DuPont wires One 18650 battery holder Two 18650 batteries One laser pen One iron … 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
On a scorching summer day, with temperatures soaring outside, what can we do if we want to play basketball?? Today we will try to create a basketball game using Micro:bit. The materials used are some cardboard and items easily found around us, combined with Micro:bit, to create a fun basketball game that is also very … Read more
Smart speakers are a type of smart home product that has emerged in recent years. They integrate audio processing and voice recognition technologies to provide users with a more convenient and enriched audio experience. The MCU is a crucial core component in smart speakers. This article mainly introduces an application scheme for the 8-bit MCU … Read more
The LCD TV is currently a widely used television due to its powerful features, which leads to a very high usage frequency, inevitably causing some problems. For example, the LCD TV screen is the most prone to failure, so what to do if the LCD TV has sound but no image? What to do if … Read more
Please add WeChat ID: jdwxqun Message: Please add me to the WeChat group for the Chinese electrical appliance industry (professional home appliance repair exchange group) with no users, no ads, and no irrelevant content. Strict group rules and dedicated management. If you are in the home appliance repair industry, you will be added to the … Read more
Infrared Thermometer Technical Principles All objects with temperatures above zero degrees (-273.15°C) continuously emit infrared energy into the surrounding space. Their radiation characteristics, the magnitude of radiation energy, wavelength distribution, etc., are closely related to the object’s surface temperature. Conversely, by measuring the infrared energy emitted by the object itself, we can accurately determine its … Read more
Since the late 1970s, with the birth of the microcontroller, there has been a considerable history of development in microcontrollers. Because microcontrollers are more suitable for embedded systems and have strict volume management, almost every electronic device you see today integrates a microcontroller. The widespread application means that learners of microcontrollers have a wealth of … Read more