May I ask about the batch use experience of the internal crystal oscillator of STM32F100c8?1. Is it consistent when it leaves the factory ? 2. After adjustment , how much drift will occur with tempera...
I am using a PLC936 microcontroller, but it does not have enough ports, so I am using 8574 for expansion. However, 8574 is not available now, and I am looking for a replacement, but it is difficult to...
I want to use a single-chip microcomputer to make a digital barometer, but I don't know what type of pressure sensor to choose. This digital barometer is only used to measure ordinary atmospheric pres...
[i=s]This post was last edited by yhye2world on 2019-8-6 13:06[/i]1. Application scenario:used to measure the displacement of the tip of a signature pen;
The displacement sensor is installed inside th...
[size=5][color=green][b]TI Analog Electronics Training Materials[/b][/color][/size][b][size=5][color=blue] [/color][/size][/b] [[i] This post was last edited by qwqwqw2088 on 2012-9-24 08:34[/i]]...
My board: LED1=1 means LED1 is off LED1=0 means LED1 is on key3=0 means key 3 is pressed My program: When key3 is pressed: If LED1=1--no operation If LED2=0--LED2 is off, when key3 is lifted, LED2 is ...
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[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]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[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]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[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]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
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