After successfully establishing the gprs connection to the gprs master station, I turned on the gprs service. Why did I get an error when I sent at^siso=1? What could have caused the error? Thank you....
My C51 version is 8.12. Now there is a problem. The following program [code] ACC=Data; for(i=8;i;i--) { ACC>=1; SDA=CY; SCL=1; _nop_(); SCL=0; } [/code] Generated code As follows [code] 640: ACC=Data;...
I am working on PN code tracking recently. I have read some papers. In addition to using shift registers to generate PN codes, there is another solution that uses ROM to directly store the calculated ...
A half-fixed ore. Unscrew the plug and see the tinfoil ball. Pick out the tinfoil and find the ore. You can DIY movable ore. Haha! By the way, is the diode in Figure 1 also a fixed ore?...
I usually need to enter the verification code on both sides... There may be two reasons: 1. Timeout. I don’t know how the forum is designed now. Does it start counting from the page generation? Then i...
Plastic turnover box as fish pond filter box
1. Consider a 3-layer DIY filter box. The box and pipes are purchased from 2 stores. The structure is based on the ones on the Internet and made by yoursel...
1. Equipment Overview
Shell-and-tube heat exchangers are a common heat exchange device used in chemical evaporation and heating equipment. Currently, the tubesheets of shell-and-tube heat exch...[Details]
Today's security industry has entered the era of massive networking. Many enterprises, especially financial institutions, have established multi-level video surveillance networking platforms. Lever...[Details]
White light LEDs are voltage-sensitive devices. In actual operation, their upper limit is 20mA. However, the current often increases due to various reasons during use. If no protective measures are...[Details]
The Automotive Testing and Quality Assurance Expo (ATE 2025) will open on August 27th. At the expo, Rohde & Schwarz (R&S) will showcase six automotive testing solutions, themed "Intelligently Drivi...[Details]
The automotive industry in 2025 is undergoing a thorough intelligent reshuffle.
Geely wants to make changes in the field of AI cockpits: in the future, there will be no traditional smart...[Details]
Since its invention in the mid-1940s, the microwave oven has evolved from a humble beginning to commercial use, entering homes in the 1960s and rapidly gaining popularity. Its basic functionality a...[Details]
A human-machine interface (HMI) refers to the platform used by people to operate a PLC. This platform provides an interface between programs and humans, serving as a medium for information transmis...[Details]
Previously, Positive Motion Technology shared with you the firmware upgrade of motion controller, ZBasic program development, ZPLC program development, communication with touch screen and input/out...[Details]
With growing environmental awareness, the continuous improvement of three-electric technology and the increasing deployment of infrastructure such as charging stations, the electrification of new e...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
introduction
In recent years, multi-touch has emerged as a new alternative to traditional human-computer interaction. It eliminates the need for keyboards and mice, enabling simultaneous inter...[Details]
The composition of the water heater
The water heater itself is divided into the following parts:
1. Water tank.
This is where the water heater is filled with water and where the wate...[Details]
introduction
With the development and widespread use of integrated circuits in power electronics design, electronic products are trending towards smaller sizes, more components, and greater fu...[Details]
Driven by business opportunities such as access to new markets and government initiatives like the Belt and Road Initiative, global expansion has become a significant trend for Chinese companies. C...[Details]
Embedded System
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