;Only display the hour and minute RG_KEY EQU 30H;Store the keyboard value RG_KN EQU 33H;Store the number of buttons for adjusting the year, month, day and week. RG_BT1 EQU 31H; data to be displayed is...
1. Last year, the process operating system RTthread was still very popular. Here, the fans are accelerating innovation and launching new concepts. How about combining arm-m4 and FPGA? Take a look at t...
I just saw a fun thing online, called a sun jar. The principle is very simple. Get a solar panel to charge a NiMH battery, then use a photoresistor to detect the external light, and turn on the LED wh...
I have only been in contact with Zigbee for a short time, but I want to use Zigbee to collect some temperature, humidity, smoke and infrared data. Here, three nodes and a coordinator are used. A probl...
I used to use stm32f103, but now I need to use LM3S8962. I have a TI evaluation board, but I can't download the program using MDK, so I use IAR instead. Since I don't have an IAR project, it's very tr...
[align=left][b]Chapter 7 Buzzer Experiment[/b] In the previous chapter, we introduced the use of STM32's IO port as output. In this chapter, we will use another example to explain the use of STM32's I...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[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]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[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]
Introduction
X1226 has the functions of clock and calendar. The clock relies on hour, minute and second registers to track, and the calendar relies on date, week, month and year registers to tr...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
In order to develop lighting LED technology, developed countries attach great importance to the research of LED testing methods and standards. For example, the National Institute of Standards and T...[Details]