I'm really sorry, I received the Qinheng development board sent by the forum a long time ago, probably in June? Because the company was doing a network security review in June and July (this year is a...
What is billing?Billing is the process of keeping accounts and collecting money. When you use a service, you need to pay the corresponding fee based on the service content and duration. This is billin...
Refer to the Weather Station example to make a simple environment detection program, as shown below: This is done by using controls to monitor temperature, humidity, air quality, atmospheric pressure ...
Recently, Qorvo pointed out in WiFi 6 and “CHIP” will promote the popularity of the Internet of Things :
Today, the IoT is served by competing networking standards such as Zigbee, BLE, Thread, Apple H...
1 Introduction to Digital Multimeter Digital measuring instruments have become mainstream because they have high sensitivity, high accuracy, clear display, strong overload capacity, are easy to carry...[Details]
What are the risks of custom drivers? Why would an off-the-shelf LED driver be a better solution? The content of LED driver specifications is usually very attractive, and manufacturers will pro...[Details]
On February 26, Fujing Technology released its 2019 performance report, stating that in 2019, the company achieved operating income of 501.1457 million yuan, an increase of 2.00% over the previous y...[Details]
When using a multimeter, for safety reasons, there are a few points to note!
1. Hold the test pen when measuring.
2. When measuring large current and voltage, do not change the func...[Details]
The technology can successfully detect and report fake speeding signs that may cause vehicles to move abnormally. Recently , Harman demonstrated new detective detection technology at C...[Details]
The following aspects should be noted in the daily maintenance of TR200 roughness tester for non-destructive testing:
1. After starting the machine every day, use alcohol (absolute ethanol, 99.97%)...[Details]
The function of the ST stack register is to save the PC value at the breakpoint when an interrupt or subroutine call occurs, so that the original program can continue to execute when the interrupt or...[Details]
The light-emitting principle of LED is different from that of traditional lighting . It relies on PN junction to emit light. LED light sources with the same power have different current and vo...[Details]
1 Introduction With the rapid development of test equipment, its performance has attracted more and more attention. After a period of time, the test equipment must be tested. As an important componen...[Details]
Convergence in the consumer space is accelerating, with the lines between consumer computers and communications applications becoming increasingly blurred as each device continues to add new feature...[Details]
Apple this week began selling certified refurbished 10.2-inch iPad models (cellular version) for the first time in the United States, Canada and some other countries and regions. Compared with...[Details]
1. Introduction
NAND FLASH has become the mainstream product in current storage applications due to its large storage capacity, small size, fast read and write speed, and simple peripheral cir...[Details]
Solar energy is recognized by the world as the new energy with the highest technical content and the most promising development. As a new energy system, solar power generation system (photovoltaic sy...[Details]
A soft starter is an electrical device used to start a motor. It can effectively reduce the current shock when the motor starts, extend the service life of the motor, and improve the stability ...[Details]
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