Question 1: The entire program is as follows: #include
sbit Fscx = P3^4; sbit CW = P3^5; void main() { int i; CW = 0; while(1) { Fscx = 1; Fscx = 0; Delay(100); } } It is normal to debug with WAVE emu...
Recently, the school required us to make a device for collecting ECG. When making a low-pass filter, we calculated through the formula that the cut-off frequency should be around 250HZ using 0.047uF a...
Last Monday (June 13th), I started positioning a circuit board. Since I did not consider in detail the relationship between the display position during PCB design and the position of the interface of ...
ce5.0 evc4.2. I want to add a minimize button to the dialog box, and use ShowWindow(SW_MINIMIZE) to achieve it, but the dialog box disappears when minimized. But it works in XP system. I think the tas...
Compiled from: https://hackaday.com/2021/04/02/python-will-soon-support-switch-statements/In C language, if else and switch statements are used to perform state processing.A new match function has bee...
I used to use BlueNRG-1 DK 2.5. When I saw that ST's BlueNRG-1 DK 3.1 was released, I installed it. The default installation path is C:\Program Files (x86)\STMicroelectronics\BlueNRG-1_2 DK 3.1.0After...
littleshrimpST Sensors & Low Power Wireless Technology Forum
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[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]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[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]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[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]
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]
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]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[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]
Introduction
Today, as IC (integrated circuit) has developed to a super-large scale, IC design based on IP (Intellectual Property) cores and their reuse are important means to ensure the ef...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
Zarlink Semiconductor has developed an ultra-low-power RF transceiver chip for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices. It has high data rates, low power c...[Details]