-
In order to achieve real-time monitoring of the safety status of the home environment and automatically dial for voice prompts or send alarm text messages when an alarm occurs, a GPRS-based embedde...[Details]
-
Abstract: Many devices require a user interface to adjust temperature, backlight intensity, power supply voltage, etc. This user interface needs to be able to avoid accidental key adjustments. If a di...[Details]
-
During the Qingming Festival, we recall the past. Today, we will take a look at those graphics card, motherboard, and mobile phone brands that have disappeared from people's sight. Graphics card ma...[Details]
-
On April 5, the "Yitie Hotel Incident" shocked the whole country. The video surveillance in the hotel recorded the whole process of a woman being violently assaulted. However, even in front of the re...[Details]
-
1. In the Project window, select the project or make it the main project (right-click the project and select “Set as main”). 2. Click the “Debug Project” icon (or select Debug Debug Project or Debug ...[Details]
-
Operation of direct online starting circuit
A direct on-line starter or DOL is a simple electromechanical system designed for the switching and protection of induction motors.
A...[Details]
-
Solar energy has attracted much attention as an unlimited and free energy source. Among them, photovoltaic technology is widely used in the field of solar energy, which can be traced back to 1839. ...[Details]
-
After the photovoltaic system is installed, it cannot be closed and connected to the grid immediately. First, the system must be tested to see if it is safe and qualified before it can be connected...[Details]
-
At the 2019 Anchuang Future Technology Innovation "Chip" Conference held today, Huang Qing, Managing Director of Walden International China, said that China's semiconductor industry has gone through ...[Details]
-
In actual engineering applications, when there are many keys, matrix keyboards or encoding keyboards are mostly used. For cost considerations, matrix keyboards are generally used.
The fol...[Details]
-
At the beginning of 2019, State Grid Corporation of China held a working meeting to make comprehensive arrangements for the construction of the ubiquitous power Internet of Things and accelerate th...[Details]
-
Overview: I2C (IIC, Inter-Integrated Circuit), a two-wire serial bus, was developed by PHILIPS to connect microcontrollers and their peripherals. It is a serial bus composed of data line SDA and cloc...[Details]
-
In recent years, offices, office buildings, shopping malls and hotels have generally adopted centralized air conditioning and ventilation systems. Statistics show that the glass windows of office b...[Details]
-
In order to improve the energy density of lithium batteries, metal electrodes can be used instead of the conventionally used graphite negative electrodes. However, this approach is hindered by the po...[Details]
-
All-vanadium liquid flow battery bipolar plate production line project (published after approval) Construction unit: Dalian Rongke Energy Storage Group Co., Ltd. Design unit: Information Industry Elec...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
