Several types of Bluetooth antennas are summarized. Which one is more familiar with Bluetooth signals? Which type of Bluetooth antenna will have greater transmission power and better receiving sensiti...
[i=s]This post was last edited by weiwei4 on 2019-1-16 01:05[/i] I really don’t think the NXP Rapid IOT APP is that easy to use. First of all, as mentioned in the previous post, the App has certain co...
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[i=s]This post was last edited by DDZZ669 on 2020-9-20 15:44[/i]The previous article " 【GD32450I-EVAL】+ 03 Basic usage of library functions - taking key interrupt as an example " introduced the basic ...
This is a question that many people have and is often asked. The amplifier has two power supply pins +V and -V, which are the positive power supply pin and the negative power supply pin respectively. ...
We need to know that a variable is actually an abstract name for a memory address. In a statically compiled program, all variable names are converted to memory addresses during compilation. The machin...
The medical protective mask respiratory resistance detector is used to measure the inhalation and exhalation resistance of the mask under specified conditions. It is suitable for mask manufacturers a...[Details]
1 Basic theory
The output
voltage
Vo of
the switching power supply
is controlled by a control voltage Vc, that is, Vc is compared with the sawtooth wave signal to...[Details]
Recently, there is a need to simulate the serial port in the project at hand, and the simulated serial port part has such a requirement: when the Strat signal comes, start the timer TIM3, and sample ...[Details]
1. Development of DSP
In the application of sound reinforcement system, we often convert the sound signal into digital signal (A/D), process it according to a certain format, and then convert the d...[Details]
A few years ago, AMD, Qualcomm and Intel entered the field of artificial intelligence one after another. Faced with the situation that the field of artificial intelligence chips has been occupied by ...[Details]
It is easy to distinguish between a voltmeter and an ammeter. First, look at their appearance and logo: The unit of voltage is volt, represented by the letter V. If it is an AC voltmeter, a ~ sign wi...[Details]
Taking the Buck PWM converter as an example, the principle circuit diagram of its hysteresis current control is shown in Figure 1. The voltage loop is not drawn in the figure. The hysteresis curren...[Details]
Today, a post on the Korean community website Clien talked about Apple preparing to launch a hybrid console similar to the Switch. According to reports, Qualcomm has also been developing similar prod...[Details]
As shown in the figure below, two resistors are used to divide the voltage. The resistance value can be 2:1. After dividing the voltage, 1/3 of the voltage of the signal source is obtained. In this w...[Details]
As one of the key development industries in integrated circuits, voice chips can enhance the intelligent interactive experience. In order to enhance everyone's understanding of voice chips, this ar...[Details]
This is extracted from a successfully manufactured smart car.
Download all production materials: http://www.51hei.com/bbs/dpj-19526-1.html
The following is a preview of the program:
#include r...[Details]
Micro motors are small in size and capacity, with output power generally below several hundred watts, and have special requirements for use, performance and environmental conditions.
The...[Details]
This article is a reference design (RD) for an automotive AM/FM active antenna. This RD demonstrates the flexibility of the MAX2180 active antenna low-noise amplifier (LNA) and describes how to set...[Details]
Cost audit refers to the act of the government price regulatory department to verify the reasonable expense expenditure of enterprises for goods or services that are subject to government pricing o...[Details]
When discussing the RC spike absorption problem of the secondary-side rectifier diode of Flyback, it is better to use RCD absorption than RC absorption to deal with such spike problems. With RCD abso...[Details]
Discrete Device
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