I need one AA battery for power. Recording time is 500 seconds. LCD displays English and numbers. I want to use ATMEL MEGA48V+SPI FLASH+LCM for some buttons. Plus DC/DC. Is there any cheap and easy wa...
I am a beginner and want to test the communication distance of the module, but the default value in the program is 0dB. How can I configure it to increase the communication distance? There is another ...
Hello everyone! I downloaded the article "Creative Design of Colored Lights" from CNKI and found the following circuit, but after I made the circuit, it didn't vibrate? Is there something wrong with t...
[i=s]This post was last edited by zhanghuichun on 2017-6-17 23:36[/i] [b][color=#5E7384]This content was originally created by EEWORLD forum user [size=3]zhanghuichun[/size]. If you want to reprint or...
Copy the network card driver to the floppy disk. Create an empty directory under /tmp of Linux, and then copy the driver on the floppy disk to this empty directory. Unzip: #tar zxvf r1000_v1.05.tgz (t...
The principle of phase-locked loop frequency controlPhase-locked loop frequency automatic tracking-------Use the phase-locked loop to ensure that it works at the desired frequency pointHow do you unde...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[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]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[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]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[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]
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]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[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]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[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]
Embedded System
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