Aiming at the defects of the existing coal mine monitoring system in power consumption, communication and anti-interference, a new coal mine gas monitoring substation is designed. The substation adopt...
JTAG is only used for JTAG, not for GPIO. Sometimes I can connect to IAR to download and debug, but sometimes I can't connect. What's the reason? Is the hardware JTAG interface damaged? Thu Sep 29, 20...
[size=4] When we choose and buy a quartz crystal oscillator, or when we look at the crystal oscillator specification provided by the manufacturer, there will be an indicator of output mode (Output Typ...
[i=s]This post was last edited by fxyc87 on 2014-7-5 09:48[/i] [code] [/code]This routine function: Enable interrupt, indicator light, press to light up, press again to turn off. All contents are orig...
[i=s]This post was last edited by Xinjiang Little Watermelon on 2021-6-22 12:18[/i]First of all, I would like to thank EEWORLD for providing a communication platform. I have been feeling depressed rec...
[backcolor=rgb(239, 245, 249)]This is my first time using STM. I want to get started. Is the F1 nucleo suitable? If you have any, please contact me at QQ: 1674617. My WeChat ID is also my QQ ID. [/bac...
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]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[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]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
The future energy storage hotspot is not coal or iron ore, but lithium. This lightest metal in nature may be the heaviest resource in the future energy landscape. China launched an ambitious electr...[Details]
Microcontroller MCU
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