[i=s]This post was last edited by dcexpert on 2022-3-27 15:08[/i]The CN3791 charging module I bought is 12V by default, while the solar panel I have is around 6V, so the voltage needs to be changed be...
[i=s] This post was last edited by fdsf on 2019-1-24 09:43 [/i]The function of the code in the red box in the figure is to store the data of the mp3 audio file in databuf so that it can be sent later....
The ST official SDK already provides a demo of the static protocol stack:C:\Users\user name\ST\BlueNRG-LP DK 1.xx\Projects\BLE_Examples\BLE_StaticStack
The static protocol stack provides four configur...
In an increasingly impetuous society, many people like to relax themselves in the world of music, and owning a good playback device must be the dream of many music lovers.
Everyone knows that music ha...
The 2020 STM32 National Tour Seminar is about to kick off. Since 2007, the STM32 National Seminar has become an annual event for engineers to gain insight into the latest products in the embedded fiel...
Hikvision recently announced that it will expand the company's industrial chain. Hikvision issued an announcement stating that the company plans to jointly invest with China Electronics Fund, China...[Details]
1. Introduction
Pointer-type electrical measuring instruments are widely used in industrial testing processes due to their low price, high reliability, and easy installation and replacement. R...[Details]
The 89S51 and 89C51 in ATMEL's 89S51 series have the same functions. The instructions are compatible. HEX programs can be used directly without any conversion. In addition to being able to connec...[Details]
Accelerating network interoperability to help enterprises move towards 5G Leveraging 5G open radio access network expertise to accelerate commercialization of 5G RAN solutions Summary: • AD...[Details]
The MAX5391/MAX5393 are dual, 256-tap, volatile, low-voltage linear-variable
digital potentiometers
that offer 10kΩ, 50kΩ, and 100kΩ end-to-end resistances. The devices operate from a single ...[Details]
This certification accelerates the development of commercial ultra-wideband accessories for iPhone and Apple Watch
BEIJING, China – July 26, 2022 – Qorvo®, a leading provider of inno...[Details]
We usually use a multimeter to measure current. The measurement method is not difficult. You can read the current by connecting the test leads in series to the circuit. Do you know how to use an os...[Details]
Many people don’t know how to upgrade fake satellite dishes. Now we will give a detailed introduction on how to upgrade:
Cracking method 1:
After booting up, it freezes after automaticall...[Details]
When developing battery-powered devices, especially systems with strict requirements on the standby or operating time of the device, such as mobile phones, it becomes increasingly important to reduce...[Details]
The latest report released by Tianfeng International analyst Ming-Chi Kuo pointed out that the fierce price competition for Mini LED chips began in 2021, and Sanan Optoelectronics/Chinese suppliers a...[Details]
When writing a Linux driver, I want to use a certain pin as an external interrupt. But when calling
int request_irq(unsigned int irq,
void (*handler)(int irq, void *dev_id, struct p...[Details]
According to Jiwei.com, "The stock price has been halved and continues to fall. It has an advantageous track but cannot deliver results. It has frequently acquired high-quality assets but has been op...[Details]
As of 4:00 a.m. on December 18, the ±800 kV UHV Zhongzhou Converter Station, the receiving-end converter station of the Tianzhong DC Project, the first "double 800 UHV DC project" in China and the ...[Details]
1 Introduction
In the production process, any control system that automatically keeps two or more materials in a certain proportional relationship is called a ratio control system. I...[Details]
DIY/Open Source Hardware
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