After zigbee collects data and sends it to nb-iot, the data cannot be displayed normally.
This is a screenshot of the serial portThis is a screenshot of the cloud...
Hi, everyone! There are new changes in our forum. The markdown editor was launched this week. Netizens who like to write articles in markdown can use it happily! ! The specific location of the markdow...
1. A total of 6 passwords can be set, and the value of each password ranges from 1 to 6. 2. Users can set and modify passwords by themselves. 3. There will be a sound prompt when pressing each key and...
How to measure the power supply voltage without a multimeter? Of course there is a way...Today we will take a look at the AD function of AT32F421.AT32F421 has 15 12-bit ADC acquisition ports, which is...
[i=s]This post was last edited by DDZZ669 on 2021-2-20 11:45[/i] In the development of single-chip microcomputers, the control of motors is closely related to timers. Whether it is a DC motor, a stepp...
Annubar flowmeter is an ideal product to replace orifice plate due to its easy installation, low pressure loss, high strength, no wear and tear, no leakage, etc. It can be widely used in the flow mea...[Details]
When there is no check bit, the data bit is usually 8 bits. When using the parity bit, the data bit should be set to 9. A parity bit is also included with the data bits. See the reference manual for ...[Details]
This article shares with you an example of DIY wireless LED lights using the principle of electromagnetic induction. First, we need to prepare some simple and common components: the first is the coil...[Details]
Communication
Power supply
is called the heart of the communication system.
The power supply
system will directly affect the reliability and stability of the communication system. A...[Details]
There are all kinds of interesting world records in the history of automobiles. Although these records do not have much practical use, they all represent the development process of automobiles. When ...[Details]
LEDs are expected to transform the lighting industry with their long life and low power consumption, but a major barrier to their rapid adoption is the high cost of the LEDs themselves. The cost of L...[Details]
According to the Photonics Industry Association (PIDA), with the emergence of a series of related digital video surveillance
products
based on digital cameras
, coupled with
cheaper
technol...[Details]
According to the Wall Street Journal, Gartner said that global chipmakers are expected to invest about $146 billion in capital expenditures this year, an increase of about one-third from the previous...[Details]
On June 9, Zhuoshengwei's stock price continued to rise, reaching a maximum of 454.60 yuan per share. As of press time, the intraday increase exceeded 6%, and the total market value reached 151.3 bil...[Details]
Before a new product launch, manufacturers often send out a creative invitation letter, on which we can learn some of the selling points of the new product. In the mobile phone industry, I think Meiz...[Details]
Fairchild's FSQ500L is a low-cost product designed to replace linear power supplies. The chip integrates SenseFET current mode PWM, and the built-in PWM controller has the following features: built-in...[Details]
Sports tech company Form has unveiled the Form Swim Goggles, which allow athletes to view their race results via an augmented reality display on the goggles they wear underwater. The lightweight go...[Details]
Rob Enderle, president and chief analyst of emerging technology consulting firm Enderle, recently published a signed article on the American technology information website DigitalTrends, saying t...[Details]
【Abstract】
Power battery
The enthusiasm of manufacturers to go overseas has gradually risen since the middle of last year, and this year it has become an important part of seeking t...[Details]
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