ARM9 2440 failed to read SHT11, all 0XFF; after 2440 sent the command, no ACK signal was detected at the ninth clock. There should be no problem with the hardware, the same sensor runs normally on oth...
How to measure the distance between two nodes (cc2530)? Currently I use afIncomingMSGPacket_t in the z-stack protocol stack to read the rssi value. Now I don't know what algorithm to use to calculate ...
[i=s]This post was last edited by hujj on 2019-1-9 10:45[/i] The ST NUCLEO-G071RB[/color][/align] development board used in this review comes from the [color=#008000][backcolor=transparent][font=Tahom...
As shown in the picture, today is the day to eat eel in Japan, the official name is "Tu De Chou Day". Tu: Saturday in Japan. Monday to Sunday are called like this in Japan, Yue Yao, Tu Yao, Wed Yao, T...
The power amplifier I made before burned out. Recently, when I was doing analog-to-digital conversion, I thought of a Class D power amplifier, so I built one on a breadboard to get a feel for it. If t...
This material explains electronic circuits in the form of comics. It is a very practical book. Compared with our traditional textbooks, it has several outstanding features. First, the comic format is ...
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]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[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]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
It should be understood as follows: DC-DC means direct current to direct current (conversion of different DC power values). Anything that meets this definition can be called a DC-DC converter, incl...[Details]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]
0 Introduction
With the development of virtual instrument technology, new measurement and control methods that use "virtual instruments" to replace traditional instruments are replacing trad...[Details]
High specific energy lithium/thionyl chloride (Li/SOCl2) batteries are widely used in multi-functional intelligent meters (such as smart meters, water meters, etc.) as real-time clocks and memory b...[Details]
1. Introduction
With the continuous development of modern urban construction, infrastructure and real estate are becoming increasingly prosperous, and the quality requirements for construction ...[Details]
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