[i=s] This post was last edited by Qiangzi00001 on 2015-10-16 23:18 [/i] This time I used the serial port of R7F0C8096 to transmit the acceleration waveform to the host computer:):), the source code i...
What does LCD busy state mean? Is it necessary to detect busy state? I saw a program like this: bit lcd_busy() { bit result; rs = 0; //Data, command selection terminal 1 is data rw = 1; //Read, write ...
Dear experts, I have a question about the sampling frequency of ADS1258. My ADS1258 external sensor chip is accessed by MCU. If my MCU sets the sampling frequency of the ADC chip to 500HZ, then my sen...
[font=Tahoma, Helvetica, SimSun, sans-serif][size=14px]Overview: [/size][/font] [font=Tahoma, Helvetica, SimSun, sans-serif][size=14px]Currently, SDI-12 products are becoming more and more abundant an...
1. Introduction
Previously, we introduced two ways to drive WS2812B: GPIO pins and PWM combined with DMA. In this post, we will introduce another way: drive WS2812B through the SPI interface of MCU. W...
I am writing a bootloader and I have some trouble with the serial port. Can you guys give me some advice? I have divided the bootloader into two stages. Now the first stage is almost completed. I just...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[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]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[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]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]