Computers are composed of hardware and software. Hardware is what we can see, such as CPU, memory, motherboard, chipset, graphics card, network card, and sound card. Software is composed of applicatio...
For example, if the sampling rate of the MCU ADC is 200KSPS, is it equal to 200KHZ? Does it mean 200K samples per second? If the crystal oscillator is 11.0592MZ, how to determine whether the clock fre...
In the previous article, the Waft test routine has been compiled. When updating the binary library file, the problem of insufficient system capacity is encountered. In this article, we will first expa...
1. Enable scene level control
2. Parent-child tree and classification object attribute tree
3. Switch scene level
After loading the park in the 3D visualization scene, the system will automatically cr...
Metal coating is a process of covering metal materials on the surface of other metal or non-metal substrates, which can provide superior performance and protection for the substrate. As an import...[Details]
According to an announcement recently released by Goertek, thanks to the growth in sales revenue of TWS headset products, Goertek's net profit has increased significantly and profitability has contin...[Details]
PCON is mainly a special register set for power control of CHMOS type microcontroller. The unit address is 87H and its structure format is as follows:
PCON power management register structure...[Details]
ADS1100 is a continuous self-calibrating analog/digital (A/D) converter powered by a single 2.7V~5.5V power supply. It has the advantages of high resolution, simple interface, proportional amplific...[Details]
1 Functions of μPD789842 1.1 Resource Configuration of μPD789842 The pin arrangement of μPD789842 is shown in Figure 1. Its internal resource configuration is as follows: ● ROM: 8kB; ● RAM: 256 by...[Details]
Let's take a look back at history in my basement lab. Tektronix (co-sponsor of SJ) introduced the 7000 series of modular oscilloscopes around 1969, and I think they were produced until the 1980s. The ...[Details]
Sina's "2019 Technology Billboard" annual ceremony opened on December 18 at the Shangri-La Hotel in Beijing. The theme of this Technology Billboard was "Reconstructing New Technology to Empower...[Details]
External reset is generated by a low level applied to the RESET pin. When the reset low level duration is greater than the minimum pulse width (see Table 15), the reset process is triggered, even if ...[Details]
Select the appropriate current measurement range according to the size of the measured current and insert the red test lead into the "a" current jack. When measuring DC, the red test lead (inserted i...[Details]
1. Measuring insulation resistance
It should be conducted on each phase separately, and the other two phase conductors, metal shields or metal sheaths and armor layers at both ends of the ...[Details]
1. Introduction In recent years, with the continuous development of semiconductor technology, LED, as a new type of light source with low power supply voltage, low power consumption, long life and no...[Details]
Capacitor usage precautions and failure solutions:
Notes on capacitor selection
When confirming the use and installation environment, capacitors
used within the rated performance ...[Details]
(I) Commonly used detection methods Commonly used detection methods for integrated circuits include online measurement method, non-online measurement method and substitution method. 1. Non-onli...[Details]
0 Introduction
At present, the three-speed single-phase motor has a simple structure, low cost and convenient control. It enables the electric fan to have three speeds of high, medium and low, an...[Details]
A soft starter is a device used to start and control a motor. It adjusts the starting current and voltage of the motor to achieve smooth starting and stopping of the motor. The soft starter paramet...[Details]
Programming Basics
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