I use stm32f103, UART11 57600,8,1,N.When using it, I occasionally find that the communication stops, but it works normally after reset. Because the speed is relatively slow in the design, I use Wanli'...
At the beginning of the new year, Xiaoguan compiled some good posts in the second half of 2019 for new netizens to check. We also welcome you to contribute more information and documents you have coll...
Development Board Center Website: http://www.huanor.com Development Board Center Forum: http://www.huanor.com/bbs Taobao Website: http://shop36289907.taobao.com QQ: 1060087047 or 871001268 Mobile: 134...
[table=290] [tr][td=290][align=LEFT][font=宋体][size=3][color=#000000]It’s my first time here, and I don’t know what to write. Let’s say hello! [/color][/size][/font][/align][/td][/tr] [/table][table=29...
[size=14px]Vending machines are called [/size][size=14px]24-hour mini self-service supermarkets, also known as vending machines. They have a very wide range of sales and are the mainstream retail mode...
I am busy working every day. I plan an event today, check the data tomorrow, optimize from time to time, and repeat the operation in a cycle ~~
If there is a fitness equipment in the office, maybe I w...
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
1. Introduction
AS-Interface bus technology is an intelligent network that uses a single cable to connect sensors and actuators to controllers, transmit data, and provide power. It can be used...[Details]
(1) Open circuit voltage of the battery
(2) Internal resistance of the battery
(3) Battery operating voltage
(4) Charging voltage
Charging voltage refers to the voltage applied ...[Details]
With the rapid development of the IT industry, the demand for small DC cooling fans with PWM control (hereinafter referred to as fans) used in electronic products is increasing. This type of DC fan...[Details]
1 Introduction
Max+PlusⅡ is an integrated FPGA/CPLD development environment provided by Altera. It can independently compile simple VHDL programs. However
,
the
automatic elevator contro...[Details]
Engineers usually use multiple groups of cheap small-capacity batteries in parallel to achieve the larger battery capacity required by UPS. If multiple groups of batteries with poor performance uni...[Details]
LED lamp beads are voltage-sensitive devices and capacitive loads. In actual work, the current accuracy is required to be high, which is one of the main issues affecting the luminous efficiency and...[Details]
According to data from market research company iSuppli, the three major suppliers TomTom, Garmin and MiTAC in Taiwan currently account for more than 80% of the global market share of portable navig...[Details]
Introduction:
SMS (Short Message Service) is an application service provided by the GSM (Global System for Mobile Communication) system for sending and receiving text messages between GSM termi...[Details]
Preface
For a new antenna, we usually care about its
three main performance indicators:
standing wave
coefficient, gain and radiation pattern. In a suitable microwave darkroom, these th...[Details]