[i=s]This post was last edited by fdsf on 2019-7-29 22:07[/i]First pictureFigure 1Figure 21. As shown in Figure 1, what is the function of the xenon lamp Vin pin of U14? What is the function of RJP400...
After repeated debugging, I finally successfully drove the DS1307 calendar module today and can perform read and write operations on the calendar module.The DS1307 module communicates via I2C. I initi...
3. Algorithm Demo routine demonstration
All projects are located in the "Demo\Algorithm\Application" folder on the CD. The examples in this chapter only demonstrate the algorithm functions. The algori...
[i=s]This post was last edited by dcexpert on 2021-2-6 20:42[/i]You need to flash the circuitpython firmware first , then copy adafruit_hid from the adafruit binding library to the lib directory of th...
I found an example of Verilog driving MAX7219 on the Internet. The code is as follows:
module MAX7219(input clk_i,input rst_i,//inout wiresdo_i,//串行数据回读output reg sdin_o,//串行输出数据output reg sclk_o,//串行...
After more than ten years of development in China, DSP has been widely used in various fields such as image, voice, and motor control, which provides a reference resource for everyone when designing s...
Currently, I am helping others develop a wireless receiving module for short-distance communication. The requirements are very simple, and it can be solved with a simple 51 microcontroller. But they ...[Details]
The ISL97691 is Intersil's highly integrated 4 channel LED driver for single cell Li-Ion battery operated mobile displays requiring analog dimming, and for 3D mobile display applications. It drives fo...[Details]
In the 1970s, M. S. Whittingham began to study lithium-ion batteries. Later, he was called the "father of lithium rechargeable batteries" and won the Nobel Prize in Chemistry in 2019. Since lithiu...[Details]
Abstract: This paper introduces a CPLD-based PWM control circuit designed using the hardware description language VHDL. This PWM control circuit has the characteristics of adjustable PWM switching fre...[Details]
1. High-quality components
LED street lights are mainly used in outdoor environments and have to withstand harsh environments such as wind, rain, thunder and lightning for many years. The ...[Details]
After overcoming the controversy over screen defects, Galaxy Fold has been sold in South Korea. Many consumers have received the physical phones. As media and consumers continue to upload reviews, th...[Details]
Visual Field Tester 1. Product Overview: The visual field tester is used to determine whether the visual field below the meltblown filter material meets the requirements. 2. Compliance with standar...[Details]
In the past
, when
LEDs
were only used as status indicators, heat dissipation in LED packages was never a problem. However, in recent years, as LED
brightness
and
power
...[Details]
Nowadays, the speakers on the market are expensive for thousands of yuan, and the cheap ones can be bought for 30 yuan. So what kind of speakers can be considered a truly good set of speakers? The aut...[Details]
Recently, State Grid Shandong Electric Power Research Institute took the lead in completing the preparation of the State Grid enterprise standard "Requirements for Graded Protection of Data Securit...[Details]
In STM32, there are five clock sources: HSI, HSE, LSI, LSE, and PLL. ①HSI is a high-speed internal clock, RC oscillator, with a frequency of 8MHz. ②HSE is a high-speed external clock that can be conn...[Details]
Today, when programming the PIC microcontroller, a Fuse error 0x2007 was displayed.
The reason for this error is mainly due to a configuration bit error
I haven't studied it in detail, bu...[Details]
Recently, according to foreign media reports, in order to reduce its dependence on chip manufacturers, Hyundai Motor said it will plan to develop chips independently. Hyundai Motor America's CEO sa...[Details]
What technical parameters should be paid attention to when purchasing speakers
Pay attention to the following five parameters!
Rated power: The rated power of the speaker can generall...[Details]
Since version 2.10, TekScope software and Tektronix oscilloscopes (such as 4B Series MSO) have introduced TekHSI high-speed interface technology, which allows you to transfer waveforms up to 10 tim...[Details]
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