[i=s]This post was last edited by dcexpert on 2017-3-29 12:05[/i] Newbit (microbit) supports many tools, such as JavaScript Block Editor, Mbed, gcc, espruino, etc. But let's start with the most famili...
I just bought a FriendlyArm MINI2440 development board. I am also a newbie. When I use it, the hyperterminal cannot display the serial port settings. The parameters are completely followed in the vide...
[i=s]This post was last edited by qwqwqw2088 on 2022-3-16 16:52[/i]It's not fun anymore. The supplier just called and said that the delivery time of 4G modules is about 4-6 weeks, and they have to be ...
At present, mobile phones have become one of the necessities of modern life. The privacy of mobile phones makes the information on users' mobile phones closely related to their own interests. Once a m...
I receive data in the code like this: string str = comm.ReadExisting(); After receiving it, the content in str is: "AT+CMGL=\"UREAD\"+CMGL: 0,\"REC UNREAD\",\"13581640170\",0,4\0.NY??\0J\0d\0g\0+CMGL:...
I write under evc3.0 IDR_EDITMENU MENU DISCARDABLE BEGIN MENUITEM "Dictionary", ID_DIC POPUP "メニュー" BEGIN POPUP "Settings" BEGIN POPUP "SIZE" BEGIN MENUITEM "Large", ID_BIG MENUITEM "Medium", ID_MID M...
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]