As shown in the figure, the SMS message always returns ERROR; Using AT+CSQ, the return value is 18,99 AT+CIMI also returns correctly. Which expert can help analyze it? I am a novice learning ing~~~...
I submitted a board, but it doesn't work. I don't know if there is something wrong with the schematic. 149 works on the development board, but it doesn't work on the board I soldered. The soldering of...
Dim aa,bb,n,cc Dim s,oItem Dim i,j,ListView1 Set s=HMIRuntime.Tags("MyTag") aa=Split(s.Read,",",-1) Set ListView1=ScreenItems("ListTable") 'Fill the standard listview object with the recordset listvie...
Schematic diagram of Jorjin Technology's DM3730 evaluation board. Schematic diagram of Jorjin Technology's DM3730 evaluation board from Taiwan, China. Similar to beagleboard...
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
introduction
MAX6636 is a multi-channel precision temperature monitor that can not only monitor local temperature, but also connect up to 6 diodes externally. Each channel has a programmable...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
0 Introduction
With the rapid development of modern power electronics technology, various power electronic devices have been widely used in various fields such as power systems, industry, an...[Details]
Globally, the market for airbags and other restraint systems consists of different geographical regions, each with its own characteristics and needs. North America first introduced airbags in mass-...[Details]
Thyristor is the abbreviation of thyristor, commonly known as silicon controlled rectifier. It is a high-power switching semiconductor device, represented by the letter symbols "V" or "VT" in the c...[Details]
Different places have accumulated certain experience in equalizing charging of battery packs, but it is difficult to master it properly. Long-term non-equalizing charging or frequent equalizing cha...[Details]
1 Introduction
The automobile drum test bench (also known as chassis dynamometer) is a large-scale indoor automobile test equipment and a bench test system for completing automobile whole vehi...[Details]
1 Introduction
The Global Navigation and Positioning System (GPS) has been widely used in vehicle positioning because it can provide all-weather, continuous, and real-time high-precision posit...[Details]
Central topics:
Six basic principles of automotive power supply design
Practical applications and power requirements
Solution:
Design heat sink based on minimum efficien...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
