Our company is sincerely recruiting part-time patent engineers in the fields of electromechanical, electronics, and automation. Experience in writing technical briefing documents for invention patents...
The company's board is, 485 communication, using stm32f103re, USART1 communication, 485 uses port GPIOA PIN11, USART_RX corresponds to GPIOA PIN10, USART_TX corresponds to GPIOA PIN9I don't know why, ...
As shown in Figure 1, the constant current source composed of an op amp and a MOS tube, adjusting the resistance of resistor R4, changes the voltage value of pin 3 of op amp U1A (not greater than 2V),...
With MIMO, systems use multiple transmit and multiple receive antennas. Looking at various MIMO techniques (specifically the receive techniques) that use different approaches to antenna and signal opt...
Program such as: INT8U F_Rotation[4]={0x02,0x04,0x08,0x10};//Forward table GPIO_Init( GPIOB, GPIO_PIN_4|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, GPIO_MODE_OUT_PP_HIGH_SLOW ); //PB's 1234 is connected to UNL2...
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that is rapidly developing...[Details]
1. Fully understand the design requirements of all parties and determine the appropriate solution.
When starting a hardware development project, the original driving force will come from many a...[Details]
In some motion control systems with simple control or low cost requirements, stepper motors are often used as actuators. The biggest advantage of stepper motors in such applications is that they ca...[Details]
The battery and its management system are one of the key technologies of electric vehicles. In the past few years, most companies have encountered embarrassment in the development of electric vehic...[Details]
The cruise control system (CCS) of a vehicle is also called a constant speed driving system. It is an electronic control device that uses advanced electronic technology to automatically adjust the ...[Details]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]
Introduction
With the acceleration of China's economic development and urbanization, the amount of sewage in small and medium-sized cities has shown an increasing trend year by year. In order to red...[Details]
1 Introduction
With the development of transmission systems in recent years, multi-motor transmission systems have been widely used in various fields. In order to improve the dynamic performan...[Details]
0 Introduction
In the fields of petroleum, chemical industry, metallurgy, electricity, textile, light industry, water conservancy and other industries and scientific research, relevant pressur...[Details]