I wrote a 4*4 matrix keypad in C language and sent it to Max7219 for display. There is no problem. However, the sum of the key values is wrong for the digits, tens and hundreds. For example, when pres...
The inverter introduced here (see figure) is mainly composed of MOS field effect tubes and ordinary power transformers. Its output power depends on the power of MOS field effect tubes and power transf...
I installed Energia according to the instructions on the official website, but I couldn't even change the empty file. An error message error #34 appeared. "sketch_jul10a.cpp", line 4: error #34: inval...
I had a remote control that used CC430F5137 before. Now TI has released CC430F5147. There must be a difference between the previous models, but I haven't found out what the difference is yet. I checke...
Project Overview
The micro urine analyzer we designed can detect ten parameters of urine, including white blood cells, nitrite, urobilinogen, protein, pH value, occult blood, specific g...[Details]
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
With the rapid development of digital technology, various digital display screens have emerged, including LED, LCD, DLP, etc. There are various control systems for various digital large screens, in...[Details]
In some warehousing management, manufacturing, meteorological observation, scientific research and daily life, the requirements for temperature and humidity are common. For example, the "Interim Pr...[Details]
Volkswagen's electronic throttle has taken our understanding of the traditional throttle a big step forward. However, while we admire Volkswagen's new technology, which is constantly being applied...[Details]
Introduction
The home ECG and blood pressure monitoring system consists of a data acquisition and recording device and a host computer electronic medical record management system. Therefor...[Details]
0 Introduction
At present, most of the automatic blood pressure monitoring systems used in hospitals are imported equipment, which are expensive and increase the cost of medical treatment. The...[Details]
With the improvement of people's requirements for vehicle riding comfort and the development of passenger car suspension technology in my country, air suspension is increasingly used in passenger ...[Details]
Advances in 3D semiconductor packaging technologies have enabled the form and functionality of many of the products we use every day, such as mobile phones, personal entertainment devices, and flas...[Details]
0 Introduction
With the rapid development of modern science and technology and the progress of society, service robots are becoming more and more closely connected with people's lives,...[Details]
This design uses TI's DaVinci series chips as the hardware platform, combined with the embedded Linux operating system, to implement a video server based on TMS320DM355. This article explains the s...[Details]
Introduction
With the development of electronic technology and network technology, the use of power lines as carriers for signal transmission has received more and more attention and has been...[Details]
In serial data transmission, the data receiving end needs some specific information to recover the correct word boundary to determine which bits in the serial code stream belong to the data in ...[Details]
0 Introduction
Electromagnetic relay is a commonly used component in automatic control. It uses electromagnetic principle to realize an automatic switch that connects or disconnects one or...[Details]
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