1. According to Shannon's theorem, for a 3000Hz telephone line and a signal-to-noise ratio of 35dB, the limit of the modem is 34880bps. What about the 56k modem? What is the essential difference betwe...
[size=4]The 74 series can be said to be the chip we come into contact with most often. There are many types in the 74 series, and the ones we use most often should be the following: 74LS, 74HC, and 74...
[color=#403e39][backcolor=rgb(255, 252, 244)][font=punctuation, 微软雅黑][size=14px]Dear classmates, while you are working hard for your life and career, your classmate Li Yun was diagnosed with acute lym...
I recently got a few diodes and looked at the datasheets. The datasheets did not include power. What is the power of SMA, SMB, SMC at a normal room temperature of 25 degrees? The supplier's datasheets...
Introduction With the rapid development and maturity of positioning and navigation technology, vehicle navigation systems have been more and more widely used in related fields. The function of the veh...
Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
China Energy Storage Network:
Blockchain + finance, blockchain + environmental protection, blockchain + insurance, even a roadside fried chicken shop is using the banner of blockchain + fried...[Details]
The Wassenaar Arrangement, everything started during the Cold War. Let's learn more about it with the embedded editor.
background
After the end of World War II, the United States ...[Details]
At present, the Beidou system has achieved industrial breakthroughs and leapfrog development in five major areas, including the automotive OEM market, smart phones, and high-precision applications....[Details]
This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]
On Sunday, the South Australian government unveiled plans to build the world's largest virtual power plant, which will connect at least 50,000 homes over four years and have a capacity ...[Details]
Photovoltaic inverters are the core equipment of photovoltaic systems. Their main function is to convert the direct current generated by photovoltaic modules into alternating current that meets the...[Details]
If you do not use an external crystal on the STM32, the connection method of OSC_IN and OSC_OUT If you use the internal RC oscillator instead of an external crystal, please follow the following metho...[Details]
Internal channels of ADC: In addition to using external channels to collect external analog voltage signals, the ADC of STM32 also has two internal channels 16 and 17. Channel 16 is connected to ...[Details]
Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[Details]
The STM8L contains a 12-bit ADC with 25 input channels, including an internal temperature sensor, an internal reference voltage As can be seen from the figure above, there is an internal re...[Details]
The circuit shown in the figure requires that the light is off when the machine is turned on. Press the button once, and the light D1 will turn on and automatically turn off after a delay of 10 secon...[Details]
I have been working on single-chip microcomputers for several years, and I have always wanted to make a series of summaries. It happened to rain today. As the saying goes: Rainy days are good for...[Details]
MSP430 ADC10 single channel multiple conversions #include "msp430x22x4.h" #define uchar unsigned char #define uint unsigned int #define LCDen 0X80; //The upper three bits of P3 are used as cont...[Details]
Lithium battery has changed the global industrial layout. With the development of new energy vehicles in China, the development speed of China's lithium battery industry is also amazing. So, what a...[Details]
Embedded System
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