Today, with the help of moderator @[url=https://home.eeworld.com.cn/home.php?mod=space&uid=303079&do=thread&view=me&from=space]littleshrimp[/url], I finally got the mobile phone communication working....
The signal generator generates a 50HZ square wave, and the center frequency of the bandpass filter is 2K. The amplitude-frequency characteristic is shown in the figure below: The output of the op amp ...
The official examples show nothing, and the baud rate and other parameters are correct. I wonder if this is the case for everyone. [Serial port tool in Windows - Show View - Other - Terminal - Termina...
I used the wizard to generate some chips. Some pins of the FPGA chip are green, some are red, some resistors are green, and some are red. I don't know why it is so weird. What design rules affect it? ...
The most important parts of my alarm are the sensor and the execution part, in addition to the CPU. I chose the MQ-5 sensor. I chose the MQ-5 sensor. I. Overview. The QM-N5 gas sensor is an N-type sem...
The design of the stm32 chip is really disgusting. Here are two simple examples: 1. The USB and CAN interrupts of the STM32F103 chip are shared with the RAM, which makes it impossible to use USB and C...
Flip-chip and ball grid array (BGA) are two widely used packaging technologies in the electronics industry. Each has its own advantages and limitations, and in some cases, they can complement each ...[Details]
To enable real-time monitoring of home security and automatically dial a number for voice prompts or send text messages when an alarm occurs, a GPRS-based embedded telephone alarm system was design...[Details]
As time goes by, people are increasingly concerned about their own and their families' health. However, existing monitoring devices for individual vital signs have struggled to gain market share du...[Details]
According to foreign media reports, BMW has just been granted a patent for a screen that could cover the entire roof. BMW hopes to transform at least a portion of the vehicle's headliner into a dis...[Details]
Recently, AstroBo Robot, a subsidiary of Chenxing Automation, launched a new mobile collaborative palletizing product. Leveraging an omnidirectional mobile chassis, an intelligent scheduling system...[Details]
introduction
According to the China Fire Statistics Yearbook, electrical fires accounted for more than 30% of fire accidents in the past decade, and the trend is increasing year by year. They ...[Details]
Chinese characters are extensive and profound, and there are many different names for ESD tubes. How many of them do you know?
As far as I know, ESD diodes are currently known as ESD p...[Details]
According to Nikkei, a survey found that global electric vehicle battery supply is expected to reach more than three times the required quantity due to
cooling
demand for electric vehicles,...[Details]
A patent disclosed by Ford proposes replacing traditional segmented side curtain airbags with integrated full-width side curtain airbags that span the side of the vehicle and can be deployed simult...[Details]
Tiantai Robot's official Weibo account announced on the evening of August 20 that Tiantai Robot Co., Ltd., together with strategic partners including Shandong Future Robot Technology Co., Ltd., Sha...[Details]
Shenzhen Baowei Power Supply high frequency pure sine wave power, communication inverter power supply has two communication interfaces, RS232 and R485 interfaces, their functions and characteristic...[Details]
Wearable technology is taking off, with applications evolving rapidly, from smartwatches to fitness trackers and even smart wigs! Bluetooth Smart is at the center of this revolution. This is the se...[Details]
introduction
Inverter air conditioners are a trend in the current era and have gradually become commonplace in countless households. Beyond their basic cooling and heating functions, air condi...[Details]
Smartphones can be incredibly unintelligent. For example, consider an office full of people, each absorbed in their work. Suddenly, the silence is broken by a burst of loud pop music. A colleague's...[Details]
High-definition media consumption is experiencing a dual growth: an increase in the number of consumers and a transition to higher-definition content. This growth is driven by increasingly widespre...[Details]
ST - Low Power RF
京公网安备 11010802033920号
EEWORLD
