The BLE_Chat_Master_Slave routine is used
I am doing a protocol transparent transmission, but I don't know how the mobile phone Bluetooth and BlueNRG-1 communicate.
What functions are used to send and...
RF engineers are bringing the Internet to the world
How do satellite communications work from space?
Radio frequencies used for space communications
Satellite frequency bands: L, S, C, X, Ku, Ka bands...
From now on - September 9, e-Mall welcomes the new season, and new user benefits are increased~- You don't need to place a large order to get free shipping. If you buy a resistor, e-Network will also ...
From the working principle of the MCU, we can see that the MCU executes the program to complete the tasks we require. There are many subroutines in the MCU. The MCU calls different subroutines accordi...
Since the launch of the "Search Devices" applet, we have been working hard to continuously optimize and iterate the product, striving to make it fully functional and easy to use.This time, the mini pr...
According to previous practices, Huawei should hold a representative P series flagship new product launch conference in April. However, this year, due to well-known reasons, the launch time of Huawei...[Details]
According to the principle of serial communication, the interactive communication environment between the three parties is designed and built, and data is sent and received to each other through the ...[Details]
Requirements: Use DA conversion to generate several different waveforms, such as triangle wave, sawtooth wave, etc. #include reg52.h #define uchar unsigned char #define uint unsigned int #define ju...[Details]
A report recently released by IHS Markit said that chip sales fell nearly 14% in the first half of 2019, the biggest drop since 2009. The report noted that major chip suppliers suffered their wors...[Details]
China's first quantum satellite "Micius" completed the three major scientific goals of high-speed quantum key distribution between satellites and the ground, quantum entanglement distribution, and ...[Details]
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First, the method of not using interrupts uses usart1, pins pa9, pa10. This method has been verified on f3discovery...[Details]
Recently, the first set of charging and discharging units of the Rudong 100MWh gravity energy storage project invested and constructed by China Tianying Co., Ltd. was successfully tested. It will play...[Details]
Olympus , a Japanese optical giant founded in 1919, has become a century-old company by leveraging lens-related optical technologies. As it looks to the next 100 years, starting with Yasuo Takeuchi...[Details]
Introduction
Many industrial control systems use sophisticated, high-order control loops to maintain precise regulation of a critical parameter (electrical, mechanical, thermal, or hydrauli...[Details]
1. Influence of insertion depth (1) Selection of temperature measurement points The installation position of the thermocouple, that is, the selection of the temperature measurement point, is th...[Details]
Since the traditional laser rangefinder performance test must be carried out outdoors to detect the target and is restricted by weather conditions, the technical survey and daily maintenance are gr...[Details]
As people's requirements for the safety of their living and working environments continue to increase, the importance of safety precautions has become increasingly prominent. Video surveillance techn...[Details]
introduction
As energy becomes increasingly scarce, the main consideration for product design is energy saving. Design that can save energy and make reasonable use of electricity s...[Details]
1. About the prototype of the structure EXTI_InitTypeDef in the interrupt : uint32_t EXTI_InitTypeDef::EXTI_Line { uint32_t EXTI_Line FunctionalState EXTI_LineCmd EXTIMode_TypeDef EXTI_Mode EXTIT...[Details]
ST - Low Power RF
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