[align=left][font=微软雅黑]I wanted to buy a water purifier during the Double 11 period. I have been shopping for large household appliances on JD.com. I happened to find that JD.com had a promotion for a...
[i=s] This post was last edited by dontium on 2015-1-23 12:40 [/i] I would like to ask all the experts, if I want to detect the current of 4~20ma, what is the appropriate design? The internal resistan...
Is the instruction MRC p15,0,R1,c0,c0,0 used to read the ID number of the ARM CPU into the ARM register R1? If so, I have now embedded a .s file with the following assembly content in the EVC environm...
interrupt[PORT_vector]void PORT1(void){if(P1IFG&BIT0){Delay();if(P1IFG&BIT0){Execution body;P1IFG&=~BIT0;}}}Can this remove jitter? I feel that judging the interrupt flag in the interrupt program can ...
I use the internal DAC of the stm32L4 chip to generate a sine wave, and then use the timer's PWM to generate a square wave. However, I found through an oscilloscope that the two waveforms are not sync...
[i=s]This post was last edited by dontium on 2015-1-23 11:39[/i] [b][size=2]Operational Amplifier Gain Error Design Guide[/size][/b][size=2]deyisupport./blog/b/signalchain/archive/2013/10/01/51518.asp...
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[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]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
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]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[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]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
DIY/Open Source Hardware
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