#include stdio.h
#define FRAME180
short int h[19] = {399,-296,-945,-1555,-1503,-285,2112,5061,7503,8450,7503,5061,2112,-285,-1503,-1555,-945,-296,399
};
static short int nBuff[FRAME + 20];
void Lowpas...
1. IntroductionDuring the debugging process of the device, you often need to check some data and operating status of the device. Use the STM32H745 development board to display the main data and status...
There are many high-frequency ultrasonic sensors for sale on the Internet, but they do not have the relevant sensor processing circuits.
How can we design this kind of circuit? The sensor doesn’t seem...
Introducing a national invention patent - a smart water meter with one card. The patent was applied by Zhengzhou Leyuan Electronic Technology Co., Ltd. and was authorized on January 9, 2018.Contents
T...
There are generally two reasons for oscilloscope waveform jitter. One is that the signal is not synchronized, which is a problem with the oscilloscope trigger setting. The other is that the signal its...
Signal integrity is the main criterion for measuring signal quality with an oscilloscope, especially when we need to observe small signals or slight changes in large signals, signal integrity becomes ...
According to Gartner 's latest forecast, global IT spending is expected to reach US$4.4 trillion in 2022, a 4% increase from 2021; China's IT spending is expected to exceed US$550 billion in 2022, a...[Details]
Recently, the first centralized procurement of State Grid Integrated Energy Services Group Co., Ltd. in 2020 has been opened for bidding. Nanjing Guolian Electric Power has won the bid for the cons...[Details]
The following program runs on the LPC210X microcontroller:
void main(void)
{
// U8 Test ;
U32 ADC_Data;
const U32 ADC_CR=
( 1 0 ) | // SEL = 1, select channel 0
( ( Fpcl...[Details]
Samsung launched the Galaxy A80 BLACKPINK special edition in Southeast Asia (BLACKPINK is a Korean girl group). It is reported that Samsung invited BLACKPINK to sing several songs live at th...[Details]
Platforms and tools Operating system: Fedora 23 Development board: Arduino UNO R3 Compiler: avr-gcc Burning software: avrdude main content Installation of avr-gcc and avrdude avr-gcc compilation ...[Details]
Part 4: Using a Digital Multimeter to Measure Power Transient Recovery Time Simply put, transient recovery time is the length of time it takes for a power supply to recover to a set level after a ...[Details]
Recently, major listed automakers have released their financial reports for the first half of 2019. Chetuton has collected and compiled the main operating indicators and R&D investment data of 12 aut...[Details]
: Medical fabric triboelectric charge density tester It is used to test the electrostatic properties of fabrics after they are frictionally charged under laboratory conditions. It is also used to tes...[Details]
Alif Semiconductor has announced the Balletto microcontroller family, which it says is the first microcontroller to include Bluetooth Low Energy (BLE), Matter, and Neural Processing Unit (NPU) acce...[Details]
In daily life, if you are an Apple mobile phone user and someone who needs to drive frequently, then you! It will definitely not be unfamiliar! CarPlay is a vehicle-mounted system released by Ap...[Details]
1. Design ideas
The frequency meter has a frequency measurement range of 0Hz to 999Hz and a voltage measurement range of 0 to 7mV. The circuit has a simple structure and low cost, and is very helpf...[Details]
Scientists have used 3D printing to develop a new technology that can create a network of blood vessels, like those used to transport blood, air and other fluids in the body. The scientists also rele...[Details]
With the full implementation of the Internet+ strategy, China Telecom Nanjing Branch actively seized the development opportunities, optimized the allocation of telecommunications resources, and built...[Details]
The oscilloscope is an electronic measuring instrument with a wide range of uses. It can transform invisible electrical signals into visible images, making it easier for people to study the changing p...[Details]
This power supply uses LM317 as a voltage stabilizing device, and uses an adaptive switching circuit to automatically switch the input voltage according to the level of the output voltage to reduce...[Details]
Microcontroller MCU
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