Do you still remember the mechanical structure that had to be torn down and rebuilt? That was November 9th, and the next day I went on a business trip to Gaomi, Shandong. At that time, the components ...
The information I have been exposed to all says this: After configuring the GPRS module, you need to send an ATD*99***1# command to the module to complete the connection with the mobile GGSN. But rece...
I spent a lot of money and a day to make the THS3001 + TLC5510 board according to the EDA experiment and practice drawings (basically the same as the diagram on the datasheet, except that it uses an e...
Want to send a string of "abc" through UART0
I followed the calculation formula in the instruction manual.
The main frequency is 120MHz and the desired baud rate is 115200.
The calculation result is D...
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[Details]
1 Theoretical Analysis
Ultrasonic waves
When propagating in a suspension, the ultrasonic waves that encounter the suspended particles are scattered and attenuated at the interface, an...[Details]
According to a survey by the International Energy Agency, Asia and Australia used 1.65 trillion liters of oil for energy in 2004. The survey also showed that since 1990, the demand for oil has been...[Details]
In recent years, information technology based on microelectronics and computer technology has developed rapidly, and ultrasonic non-destructive testing instruments have also gained unpreceden...[Details]
1. Architecture and operation of electronic toll collection system
The basic principle of the electronic toll collection system is to enable a special device (on-board unit) installed on t...[Details]
In a network-centric battlefield, all systems (platforms) are interconnected nodes that work together to provide mission-critical information to military personnel. This approach is driving the dev...[Details]
As the trend towards miniaturization continues, new packaging methods and methods of interconnecting integrated circuits have been developed. Today, "system on chip" refers to a packaging method th...[Details]
Communication protocol: The first byte, MSB is 1, which is the first byte mark, the second byte, MSB is 0, which is the non-first byte mark, and so on... The last byte is the XOR checksum of the la...[Details]
Design Considerations
After the long-term deployment of smart meters (automatic meter reading infrastructure), a two-way communication will be established between the utility and the consumer. The ...[Details]
The treatment capacity of a sewage treatment plant in Shanghai is 10,000 m³/day, and the number of monitoring points is not large. The selection of S7-300 PLC plus Beijing Dingshi DS300B distributed I...[Details]
An important manifestation of the green revolution is green transportation. Electric vehicles have emerged as the times require, and their market demand is also showing an increasing trend. The long c...[Details]
Introduction
Hardware description language HDL is a language that describes digital circuits and systems in a formalized way. With this language, the design of digital circuit systems can descr...[Details]
MCU
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