Recently I looked at the 188 protocol for water meters and found that the cumulative flow is 4 bytes, one of which is a decimal place. In the actual process, I found that there is a 7-bit meter, all i...
Learn how the engineering team met the stringent requirements of cordless vacuum cleaner customers: high suction power, small size and light weight, and a long and reliable product life cycle. Learn t...
[i=s]This post was last edited by dontium on 2015-3-19 11:46[/i] [size=4]The first post has been posted here: [url=https://bbs.eeworld.com.cn/thread-319304-1-1.html]https://bbs.eeworld.com.cn/thread-3...
LPC1311/13/42/43 32-bit ARM Cortex-M3 microcontroller; up to 32 kB flash and 8 kB SRAM; USB device English datasheet, from [url=http://www.nxp.com]http://www.nxp.com[/url]....
I want to input a 32KHz or lower frequency square wave such as 1KHz from the outside to the OSC32_IN pin, and leave OSC32_OUT floating.The internal registers still follow the RTC settings.Is there a p...
I need help. I am designing a driver. The principle is as follows: the driver has a main control chip STM8S105K4, a relay, a buzzer and a power supply circuit. When working, the driver receives comman...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
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