I wrote an Android app and used the following Android code to send a character. I want to know which callback of Bluenrg will be called after sending the character?
BluetoothGattService gattService =
...
For the home LED clock, a low-power sleep mode chip was selected mainly to save power, but the effect of the crystal oscillator frequency on the overall current is unknown, and the parameter standards...
Reprint: Anxinke open source team is dedicated to writing and sharing the initial technical exchange of ESP32-A1S offline voice1. Introduction2. Offline speech framework2.1 Algorithm model WakeNet and...
As shown in the figure below, NMOS and PMOS are used as a protection circuit to prevent reverse connection of the power supply. [1] The circuit diagram of the PMOS tube is easy to understand. For the ...
In the circuit below, what are the functions of the resistors connected behind the rectifier bridge and the three resistors in the red box? What do they mean and what are their main functions?...
As shown in the picture below, does this Type-C female socket need to be mounted with a machine sticker?Some surface mount pins are hidden under the shell, what should I do when doing manual soldering...
Recently, flexible AC transmission equipment has been used to control power flow and power system oscillation. They can increase the transmission capacity of transmission lines and regulate steady-sta...[Details]
This collaboration will make it easier for enterprises to adopt private network connections, eliminate complexities such as SIM card configuration, and enable device roaming Beijing, China, Dece...[Details]
Ethernet has become the mainstream communication protocol at the top of the control pyramid in building automation. The Institute of Electrical and Electronics Engineers (IEEE) recently defined a new...[Details]
I encountered a STM32 download problem today, and Baidu couldn't find a solution for a long time; I'll record it here: Environment: IAR 7.2 Development board: STM32F103C8T6 Download method: SWD The...[Details]
On July 28, Japan's Toyoda Gosei launched a driver-side airbag with a new structure that can protect occupants more safely. The airbag has been installed in the new Honda Civic launched in North Am...[Details]
After 7 years, the new generation of Mercedes-Benz S-Class, namely W223, will be launched this fall. The new generation of S-Class is equipped with the second generation of MBUX and the world's first...[Details]
When one day we get tired of the tablets and laptops we have, would you consider switching to a convertible laptop to change your taste? A convertible laptop is a laptop with a large screen that can...[Details]
1. Capture high level time We use the counting function of timer 0 to capture the high level time of the external pin. Timers are called differently in different usages. For example, if we want to k...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
Now most of the instruments and equipment require to be operated by the host computer software, which is convenient for debugging and operation. This involves the communication process. In the ac...[Details]
The difference between a voltage probe and a current probe is that one has a voltmeter inside, and the other has an ammeter inside. In fact, the meters inside are both ammeters, but the voltmeter has...[Details]
On April 25, Shandong Electric Power Group Liquid Flow Energy Storage Development Co., Ltd. and State Grid Electric Power Research Institute Wuhan NARI Co., Ltd. held a signing ceremony for a coope...[Details]
February 22, 2024 – Mouser Electronics, an industry-renowned New Product Introduction (NPI) agent offering an ultra-rich range of semiconductors and electronic components™, is now offering Espressif ...[Details]
Abstract: This paper analyzes the internal circuit functions and performance characteristics of the L64724 digital video satellite decoding chip produced by LSI Company, and gives the internal s...[Details]
ST - Low Power RF
京公网安备 11010802033920号
EEWORLD
