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...
After a while of laziness, I'm back. I've brought you a new calculation rule based on binary. It's called XOR and NOT (don't search on Baidu, I named it myself), and it has 5 instructions.
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At the end of April, Musk made a lightning visit to China. People thought he wanted to visit the Beijing Auto Show, but they never imagined that his trip was mainly to promote data compliance, spee...[Details]
Shanghai, China, November 6, 2024 - amsram (SIX Swiss Exchange stock code: AMS), a leading global supplier of optical solutions, held the amsram China Development Center (CDC) roundtable forum at t...[Details]
Usually AVR chips include flash, eeprom, fuse, lockbits, user signature and other non-volatile contents that need to be burned into the chip during programming. Among them, the fuse part can only be ...[Details]
The noise figure mainly measures the signal-to-noise ratio (SNR) performance of the component, which is the basis of most digital communication parameters such as bit error rate (BER) and carrier/nois...[Details]
1. Click the magic wand pointed by the arrow to open the project settings. (You can also open the magic wand under Project) 2. Under the Device tab, select the chip used in the project. On the r...[Details]
A motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power sou...[Details]
It is easy to find 100fF capacitors as parasitic elements in your power supply . You must understand that you have to deal with them to get a power supply that complies with EMI standards.
A...[Details]
On August 11, Bloomberg News published an article titled "GPS, Be Careful, China's System Is Coming" signed by Anjani Trivedi. The excerpt is as follows: The coronavirus pandemic may have kept cars o...[Details]
Another market worth tens of billions of yuan is being born, incubated by the new four modernizations of the automobile industry. The new generation of Mercedes-Benz S-Class and FAW-Volkswagen ID.4...[Details]
By Zhang Quan, Chief Engineer of State Grid Energy Research Institute
my country's energy and electricity growth prospects are broad
On June 13, 2014, General Secretary Xi Jinping pro...[Details]
Overview
An ideal digital-to-analog converter (DAC) has an ideal linear relationship between its output voltage or current and input, and is not affected by other external factors (such as temperat...[Details]
When the grid voltage suddenly rises for some reason, the running refrigerators, washing machines, televisions, stereos, computers and other household appliances will suffer varying degrees of dama...[Details]
When using the digital oscilloscope probe, make sure that the ground wire clip is reliably connected to the ground (the ground of the system being measured, not the real earth). Otherwise, when measu...[Details]
RF/Wirelessly
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