To facilitate forum members to download, it is packaged into an attachment with rich content. Please pin it to the top or add it to the favorites! Including content: pdf1. The Second ARM MCU Seminar T...
[i=s]This post was last edited by shijizai on 2020-11-23 17:20[/i]I just made a note of the pit I just jumped out of, so as not to forget it later.
The MPU9250 magnetometer ID reading does not get the...
I overloaded the CButton class myself, captured the OnLButtonUp and OnLButtonDown messages, and switched the background image when clicking. I found that after clicking and drawing the background, the...
https://blog.adafruit.com/2020/10/01/ci ... -released/This is the second beta release of CircuitPython 6.0.0, and it's generally stable. See the porting status below for more stability details. This r...
From a global perspective, countless technical professionals choose to start new businesses in Silicon Valley , and many venture capital institutions have become an important force supporting their de...
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
1 Introduction
In recent years, there have been many major advances in the production technology and processes of automotive headlights, which have greatly improved the performance of automoti...[Details]
Different initialization between C8051F and 80C51 series microcontrollers
In the past 30 years, major electronic component manufacturers in the world have launched their own unique single-chip...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
The invention of the steam engine ushered in the first conversion of internal energy and mechanical energy for mankind, and the birth of the internal combustion engine at the end of the 19th centur...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
Almost everyone in a student dormitory has a bedside lamp. But if you want to read for a while after turning off the lights and don't want to disturb your roommates' sleep, you may need a reading l...[Details]
The fluorescent lamps and energy-saving lamps we commonly use now have greatly improved luminous efficiency compared with the earlier ordinary incandescent lamps and have been widely used. With the...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems (GP...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]