This is not a post to simply raise a bug for the forum. This is just a practice, a practice about testing. I haven't opened my personal space for a long time. I accidentally opened it and found this n...
[i=s]This post was last edited by ddllxxrr on 2020-12-13 09:45[/i]Why? Do I still have to use the old method of reading the manual, finding the timer running frequency, and then finding the formula to...
Where do you usually buy chips or components? I found that Taobao is too sick now, the prices are all over the place, and every product with the actual price is basically not shipped once you bid, or ...
The free SSH / Telnet software putty has been upgraded to version 0.71, which mainly improves security issues. Putty also has a special Tel version puttytel.exe on Windows, which is more convenient fo...
[i=s]This post was last edited by paulhyde on 2014-9-15 03:38[/i] 1. This year it is not called the Sony Cup, it seems that NEC has changed to sponsor it. . Haha 2. This year, the "minimum system" wil...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[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]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[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]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
introduction
MEMS is a high-tech that has flourished on the basis of integrated circuit production technology and dedicated micro-electromechanical processing methods. Pressure sensors develop...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[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]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
Cars equipped with xenon headlights are already common on the road. Whether they are standard equipment on high-end cars or embellishments on modified cars, xenon lamps are gradually becoming a sym...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
Programming Basics
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