Analysis of MQTT protocol in the source code of IoT firewall himqtthimqtt is the first high-performance MQTT IoT firewall with complete source code - MQTT Application FireWall , written in C language,...
Author: Texas Instruments Gautham Do you remember that many battery-powered electronic toys have a small plastic pull tab on the battery (see Figure 1) that you pull to make the toy start moving? This...
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In order to achieve the goal of driving safety, multi -sensor fusion in automobiles has become a mainstream trend. Combining information from different types of sensors can complement each other and ...[Details]
When the serial port sends a frame of data, what is the interval between two bytes? Let's first understand what baud rate is: Baud rate: The rate at which binary data bits are sent, usually expres...[Details]
Paper signs have become history, and the era of automobile electronic identification is coming; this automobile electronic identification system is RFID. The popularity of RFID is in line with the tr...[Details]
Recently, American office equipment giant Xerox was sued by Gallio IP LLC for patent infringement for allegedly misappropriating a shared data output system. The accused device is Xerox Secure Access...[Details]
If you want to repair a relatively unfamiliar
circuit
board without any schematic diagram, the so-called "experience" in the past will be of little use. Although people with a solid hardwar...[Details]
The open channel flow meter is a new type of intelligent flow system based on the velocity-water level operation method and adopts advanced velocity measuring instruments and water level measuring in...[Details]
Temperature is one of the most important process parameters in oil refining technology. To operate the refinery more efficiently, more temperature measuring points are needed. At the BP refinery in ...[Details]
Have you ever had a power board failure? Have you ever had an output or input failure? Have you ever lost a program?
Maybe you have only encountered a broken PLC output point once in more than...[Details]
The interrupt function of RM is defined in the startup code. When allocating the interrupt vector table in the CODE area, the interrupt function is defined. ; Vector Table Mapped to Address 0 at R...[Details]
CW431CS Voltage Monitor Application Circuit
Figure 6.5 uses the transfer characteristics of CW431CS to form a practical voltage monitor. When the voltage is between the upper and lower limit vol...[Details]
With the development of the LED industry, major manufacturers have begun to change from miscellaneous to specialized. Engineers only need to match according to the parameters provided by customers. A...[Details]
This paper analyzes the hardware composition and circuit design principle of angle measurement based on AT89S51 single chip microcomputer. The workflow and source code of the main function are giv...[Details]
"The Vitis unified software platform is targeted at software developers in the AI community. For a long time, our development tools have been mainly for hardware developers, so Xilinx is not very w...[Details]
Many microcontroller-based systems have both analog and digital signals. Even systems that appear to be completely digital are not completely digital because of analog effects such as ringing and cro...[Details]
Delixi inverter is a device widely used in the field of industrial automation. It can realize functions such as speed regulation and forward and reverse control of motors. This article will introdu...[Details]