As the title says, I recently found that my core points have not changed. I replied to a few posts and was prompted to add one core point, but the point value in the upper right corner has not changed...
[align=left][font=微软雅黑]I wanted to buy a water purifier during the Double 11 period. I have been shopping for large household appliances on JD.com. I happened to find that JD.com had a promotion for a...
[i=s] This post was last edited by dontium on 2015-1-23 12:40 [/i] I would like to ask all the experts, if I want to detect the current of 4~20ma, what is the appropriate design? The internal resistan...
Is the instruction MRC p15,0,R1,c0,c0,0 used to read the ID number of the ARM CPU into the ARM register R1? If so, I have now embedded a .s file with the following assembly content in the EVC environm...
interrupt[PORT_vector]void PORT1(void){if(P1IFG&BIT0){Delay();if(P1IFG&BIT0){Execution body;P1IFG&=~BIT0;}}}Can this remove jitter? I feel that judging the interrupt flag in the interrupt program can ...
I use the internal DAC of the stm32L4 chip to generate a sine wave, and then use the timer's PWM to generate a square wave. However, I found through an oscilloscope that the two waveforms are not sync...
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]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]
1 Introduction
Automatic Test
System The ATS (Automatic Test System) integrates all the stimulus and measurement equipment required for testing.
The computer
efficiently comp...[Details]
For a long time, my country has implemented "community-style collective heating" for hot water heating, and settled accounts based on the heating area, regardless of whether the user uses heat. Thi...[Details]
TPMS is the abbreviation of "Tire Pressure Monitoring System". It is mainly used to automatically monitor the tire pressure in real time when the car is driving, and to alarm for tire leakage and l...[Details]
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