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FFT is a fast algorithm for discrete Fourier transform, which can transform a signal
into the frequency domain. Some signals are difficult to see any characteristics in the time domain, but if
they ...[Details]
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Today is the Double Ninth Festival. Xiaomi announced that the Redmi 9A series of mobile phones equipped with the MIUI 12.5 system have obtained the aging-friendly certification certificate issu...[Details]
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C1 is a positive feedback. When Q2 is turned on, the positive feedback of C1 allows Q2 to quickly enter the saturation zone. Then C1 discharges and reversely charges. As the base potential of Q1 incr...[Details]
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//Can measure 1MHZ frequency
#include iom8v.h
#include DELAY.H
#define uchar unsigned char
#define uint unsigned int
/***********The corresponding digital tubes display********************/
co...[Details]
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In many traditional industries, multi-channel high-precision temperature acquisition systems are indispensable. Power plants, petrochemical industries, steel plants, pharmaceutical factories and othe...[Details]
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With the rapid growth of China's new energy vehicles in 2023, the global power battery market will also rise accordingly. Although the global installed capacity in December 2023 has not yet been re...[Details]
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Starting with
Qin L
&
Haibao
06, BYD's
fifth
-generation DM plug-in hybrid system (DM5.0) has been fully put into service. It has now covered a number of sedans and SUV products i...[Details]
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Test conditions: PIC16F676 uses internal 4MHz RC oscillation, power supply voltage 5V, test the current consumption of the microcontroller in sleep mode. When the external IO port is set as input an...[Details]
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Function of the circuit
The positive and negative symmetrical bipolar comparator can be used in the alarm circuit. This circuit does not set the positive and negative VREF, but ...[Details]
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The latest environmental impact assessment report shows that there have been new changes in the content of the parts production process improvement project of the Shanghai Super Factory of electric c...[Details]
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1. Introduction
Signal generators are widely used in teaching, experiment, measurement and control, etc. The frequency range of their output signals covers all frequency bands, from very low fr...[Details]
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I am currently working on a wireless project using a STM8003 series microcontroller. if(SET == GPIO_ReadInputPin(RF_DAT_GPIO_PORT ,RF_DAT_GPIO_PIN)) { //High level operation } else { //Low level oper...[Details]
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PWM is widely used in single-chip microcomputers. Its basic principle is very simple, but its meaning is often not exactly the same in different occasions. Here I will introduce the basic concepts an...[Details]
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In the past year since the central government proposed to vigorously promote the construction of the Chengdu-Chongqing Twin Cities Economic Circle, the construction of the Chengdu-Chongqing Twin Citi...[Details]
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HBLED (high brightness light emitting diode) is the fastest growing light source in the world. Its luminous efficiency is in the range of 35-50Lm/W, which exceeds that of incandescent and halogen lam...[Details]