The requirement is to input 4 buttons and output 4 LEDs. The first button controls the first LED. Press once to light up the LED, and press again to turn it off. The second and third buttons control t...
[i=s] This post was last edited by Lss丶学徒 on 2017-7-24 16:59 [/i] I have a friend who makes some smart meters. He thinks the current cost price of the STM8S005C6T6 chip is too high. He wants me to hel...
——Introducing the practical application of the concept of "lighting on demand"
In recent years, the number of underground parking lots in high-rise buildings, commercial centers, and government agenci...
Portable devices usually have a built-in battery. When plugged in, they are powered by USB, and when unplugged, they are powered by the battery. The input usually has a voltage required by the DCDC co...
Experiment 7.1 FIR ;================================================================= ; fir4.asm ;Use circular buffer and double operand addressing method to realize FIR filter;First use matlab to sel...
:Cry::Cry: The board does not use its own LCD controller because other peripherals are needed. It is driven by fsmc, and the driver ic is R61408. The same program can be driven on F429, but it does no...
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]
This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[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]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[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]
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]
Don’t just look at the power when choosing a power supply
We know that a power supply with a low rated power can hardly meet the power supply needs of the system, which may cause frequent free...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
Fairchild's FAN6208 is a synchronous rectification (SR) controller for isolated LLC or LC resonant converters that can drive two individual SR MOSFETs emulating the behavior of rectifier diodes. FAN62...[Details]
1. Fully understand the design requirements of all parties and determine the appropriate solution.
When starting a hardware development project, the original driving force will come from many a...[Details]
If users want to extend the effective use time of the battery, in addition to ensuring the quality of the charger, correct charging techniques are also essential. Here are 14 tips for charging mobile ...[Details]
Previously used primarily in high-power power supplies and large industrial and consumer power supplies, supercapacitors are now finding their way into products of all sizes, especially portable de...[Details]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]
First, the choice of charging location. Wireless charging technology is related to the distance and state of the charger and the charged device. That is to say, the distance between the two cannot...[Details]