nRF51822-QFAA is an old-generation popular chip of NORDIC, and everyone is very familiar with it. This chip has established NORDIC's leading position in the field of Bluetooth 4.2. It has a wide range...
The previous evaluation verified the IDF case sd_spi, and the Kaluga board can be connected to an external SPI port TF module to implement file operations. This article continues to improve the case t...
[i=s]This post was last edited by hujj on 2021-1-21 14:08[/i]When testing serial communication, I wrote the following code in the main loop and set the number of characters to be received as large as ...
[i=s]This post was last edited by x1816 on 2021-9-21 00:10[/i]In the last issue, we implemented the function of capturing video through the camera of the R329 development board. In this issue, we will...
In C language, a variable is defined and assigned a value in one file, and then declared and referenced in another file, and the value becomes 0 at this time....
Volvo Cars USA has announced it will partner with coffee giant Starbucks Corp. to build a public electric vehicle (EV) charging network, scheduled to launch this summer.
The Swedis...[Details]
When designing a low-power USB circuit that operates from a power source other than 5 V, you must decide whether to use a separate battery or a small power source from the host computer. The proble...[Details]
Voice interfaces have emerged as a new entry point for changing the way people interact with machines. How do these systems work? What are the hardware requirements for building such a device? As vo...[Details]
"Unmanned", "contactless" and "long-distance" have become the rigid requirements and development trends for many industries to maintain operations in the past year. While the epidemic has promoted th...[Details]
Jiwei.com reported on February 19 that vivo recently officially announced through an online press conference that it will enter the Romanian and Czech markets, continuing to expand its European marke...[Details]
Autonomous vehicle company Zoox today announced that it has expanded its robotaxi service in Las Vegas
,
marking the latest development in the self-driving taxi space. The news comes as Zoo...[Details]
As the only local leader in the application of high-power thermoelectric temperature control systems, Zhongke Xinyuan produces semiconductor direct cooling machines that are sensitive and highly prec...[Details]
The PnC function described in the ISO 15118-2 standard can achieve charging by plugging in the gun, and identification, billing information, and charging parameters are automatically exchanged betw...[Details]
The MCS51 series single-chip microcomputer At89S51 is used as the main controller, and the peripheral circuit devices include digital tube driver, independent keyboard, reset circuit, etc. The hardwar...[Details]
As we all know,
the luminous properties of
LEDs
are closely related to their operating conditions. The forward current applied to the LED is the main influencing factor...[Details]
Use of ISD51 simulation software Keil's Keil7.0 and above versions all come with a tool called ISD51 (In System Debugger), which allows users to use the serial port ( UART ) of the target hardware to...[Details]
I'm debugging a fatfs file system recently. The source code is 0.10a code. I also refer to the program of atom 0.09. My code does not use Chinese, that is, _USE_LFN is set to zero. Secondly, no memory...[Details]
The large-scale mass production and installation of all-solid-state batteries is "a long way off", but the industrialization of semi-solid-state batteries continues to accelerate. Based on predicti...[Details]
Since its birth, logic analyzers often give people three impressions: ① Expensive and difficult to operate; ②High requirements for users; ③It has similar functions to an oscilloscope, except that i...[Details]
Transistor constant current bias circuit
Usually, when RL»R, the current flowing through the photoresistor remains basically unchanged, and the bias circuit at this time is called a constant cu...[Details]
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