The RISC-V single-board computer used in this trial provides us with 40 pin interfaces, including the SPI interface. WhatI want to share today is how to use SPI to drive the ws2812B colorful lamp bead...
1. Battery voltage detection .
2. Voltage displayed on LCD1602
3. When the voltage is lower than 2.6V, the indicator light flashes.
4. When the voltage is higher than 3.3V, the indicator light flashes...
"Electromechanical System Testing and Control from Entry to Mastery" is aimed at the professional knowledge background of undergraduate graduates majoring in electromechanical engineering. First, in t...
The picture shows an LCD power supply circuit. Boosting 5V to 9.6V is a normal boost circuit. I would like to ask about the generation principle of +18V and -7.5V....
An example of troubleshooting a trigger failure on a Tektronix TDS7254 oscilloscope1. Instrument model:Tektronix oscilloscope TDS72542. Fault phenomenon:The customer reported that after the oscillosco...
I want to sample at the start and end of the effective vector of svpwm. The method I have thought of now is to use the ADC's s/w software trigger, but I don't know how to use the software trigger. How...
On April 6, Bloomberg News published an article titled "The U.S. is losing the electric vehicle battery race," written by Anjani Trivedi. The full text is excerpted as follows: In recent months, n...[Details]
The side-mounted magnetic flap level gauge is installed on the extension pipe outside the tank. The liquid level inside the tank can be clearly known by the flap indicator. A magnetic switch can als...[Details]
In the process of drug quality monitoring, the temperature measurement of heat source reaction is an important part. Drug testing has its own particularity, and has high requirements for the accuracy,...[Details]
In the context of achieving the dual carbon goals, new energy generation such as wind power and solar power generation has developed rapidly, and its volatility has brought challenges to the stable op...[Details]
Recently, Zhonghuan shares released the first three quarters performance forecast, showing that the company expects to achieve a net profit attributable to shareholders of listed companies of 682 mil...[Details]
1 Introduction
At present, the development of modern tank fire control systems has become one of the most effective ways to give full play to tank firepower and improve battlefield survivabili...[Details]
As capacitive screen phones have become popular for many years, the focus of the mobile phone industry chain is no longer just on the front screen, but has expanded to the phone frame and back, a...[Details]
The voltage range of a multimeter is usually expanded on the basis of the lowest DC current range (such as 50μA, 250μA range). Therefore, if the lowest DC current range is inaccurate, it will definite...[Details]
* The read and write programs of x25045 are written in c51*/ #define CS P2.7 /*MCU p2.7 is the chip select, you can change it to your actual pin*/ #define SO P2.6 /*Data output*/ #define SK...[Details]
Is smart photovoltaic popular?
Recently, Renjie Intelligent Technology Co., Ltd. (hereinafter referred to as "Renjie Intelligent") officially announced a round A financing of over RMB 100 ...[Details]
Interrupt Response
Interrupt response is
the acceptance of interrupt request from interrupt source by single-chip CPU. After the interrupt request is responded, it will go through a ser...[Details]
The temperature and humidity recorder is an instrument that measures temperature and humidity parameters and stores them in the internal memory at a predetermined time interval. After complet...[Details]
1. Introduction
In some large scientific research institutions, there are many laboratories with different functions, which undertake different experimental projects and may have different foc...[Details]
German media reported that EU officials will hold talks with representatives of global chip giants such as Intel, Taiwan's TSMC and South Korea's Samsung Electronics on April 30, hoping to improve th...[Details]
PWM generation circuit for chassis drive motor controlled by linear potentiometer (linear Hall element)
A PWM generation circuit that uses a linear potentiometer (or linear Hall element) on a game ...[Details]
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