DIY Automatic Power Switch for Wireless Mouse

DIY Automatic Power Switch for Wireless Mouse

EEWorld Electronic News Sharp Interpretation Technical Content Updated Daily Wireless mice are very convenient, but the battery life is not very good. Even rechargeable batteries need to be charged. Many mice come with a power switch to save battery energy, but it’s easy to forget to turn it off after use, leading to waste. Although … Read more

DIY Infrared Control Device: Simple Principles for Appliance Control

DIY Infrared Control Device: Simple Principles for Appliance Control

Infrared is a type of electromagnetic wave with a wavelength longer than red light. Since it exceeds the range visible to the human eye, it cannot be seen by humans; however, sensors can detect it, with wavelengths generally between 760nm and 400nm. We can utilize this to create an infrared controller. Infrared remote controls are … Read more

DIY Automatic Control Power Switch for Mouse

DIY Automatic Control Power Switch for Mouse

Wireless mice are very convenient, but the batteries are not very durable. Even rechargeable batteries need to be charged. Many mice come with a power switch to save battery energy, but it’s easy to forget to turn off the switch after use, leading to waste. Although most mice have an automatic sleep function, the effect … Read more

DIY Wireless Controlled Beetle Robot

DIY Wireless Controlled Beetle Robot

Limited Time Resource Download:Reply with “Tutorial” to get the microcontroller e-book, reply with “Simulation” to get Proteus simulation materials, Baidu Disk group sharing link update time: 2016-02-14, if it fails, please leave a message at the end of the article, do not leave a message in the background Original source: http://www.cntronics.com/gptech-art/80021311?page=1 Click to read the … Read more

AC Power Supply for Microcontroller-Based Fan Speed Controller

AC Power Supply for Microcontroller-Based Fan Speed Controller

The microcontroller requires 2 to 5.5V DC power supply, which can be easily provided by batteries or auxiliary power sources. However, in some cases, microcontroller-based products must operate directly from 120 or 220V AC power outlets without using a step-down transformer or resistive voltage drop. Additionally, polyester/ polypropylene film capacitors rated for AC power can … Read more

How to Upgrade the makeU Controller and Reading Pen

How to Upgrade the makeU Controller and Reading Pen

In response to many teachers reporting that the makeU device, especially during competitions, experiences shutdowns when reading, leading to a poor user experience. To improve this situation, the makeU device has undergone a firmware upgrade. Let’s take a look at the specific operation process for the firmware upgrade. 1. Download the firmware upgrade software Download … Read more

Understanding the Minimum System Circuit of MCS-51/52 Microcontroller

Understanding the Minimum System Circuit of MCS-51/52 Microcontroller

Microcontroller The minimum system consists of the external connections of the chip, including the clock circuit, reset circuit, and power supply, forming a basic application system. It mainly includes the clock circuit and reset circuit. The microcontroller consists of a central processing unit (including some special function registers), internal RAM, program memory, various peripherals (I/O … Read more

18 High School Student Self-Studies Hardcore DIY Robot

18 High School Student Self-Studies Hardcore DIY Robot

Recently, a robot made independently by an 18-year-old high school student has gone viral. It can help carry bags, track objects both indoors and outdoors, and even follow in the dark without any issues; it can even be used as a ride. From principle determination, shape design, circuit connection, to code writing, the entire process … Read more

Function Distribution of Tesla Model 3 Based on Controller Pin Definitions

Function Distribution of Tesla Model 3 Based on Controller Pin Definitions

As we know, I compiled an article in December 2018 comparing the electrical architecture of the three mass-produced Tesla models (click Evolution of Tesla’s Electronic and Electrical Architecture to jump), which mentioned the “ring network” when discussing Model 3, namely the Zone Controller (Zone Controller, refer to “BEG Evolution of EEA (2017)”). We will temporarily … Read more

Methods and Techniques to Upgrade 12-Transistor EV Controller to 24-Transistor

Methods and Techniques to Upgrade 12-Transistor EV Controller to 24-Transistor

Failure phenomenon: A “San’an” brand low-speed electric vehicle experienced a malfunction when the driver mistakenly disconnected the air switch controlling the main power supply while going downhill, causing the brushless DC motor to generate back electromotive force due to overspeed that could not be absorbed by the battery, resulting in damage to the controller due … Read more