[i=s]This post was last edited by w494143467 on 2021-10-2 10:44[/i]1. Introduction
Bluetooth is also a very common communication module in current devices, so let's experiment with Bluetooth's scannin...
I would like to ask: After HC32L110 enters deep sleep, the current is about 4uA, and it will reach 3.2uA after a long time; I plan to use the RST pin for power-on wake-up (no external reset circuit wa...
Live playback: High-performance i.MX RT processors help smart nodes achieve machine learning without Internet access : https://training.eeworld.com.cn/course/4898...
The output voltage UO of the adding circuit is the weighted sum of N input voltages UI1, UI2...UIN. Its basic function can be expressed by the mathematical expression Y=A1*1+A2*2...+AN*N, as shown...[Details]
In several new cars announced by joint venture brands, we can see that from luxury brands to mass brands, they all choose to develop digitalization and large-scale visual hardware, and instrument scr...[Details]
The command and dispatch of police vehicles, the monitoring and safety dispatch of cash transport vehicles, the operation and management of taxis and reasonable dispatch have become increasingly im...[Details]
With the development of LED technology, power LEDs have developed rapidly in the fields of backlight, automobile, outdoor lighting, commercial lighting, etc. However, the output luminous flux of a ...[Details]
I accidentally discovered that the size of the structure I defined was different from what I expected, so I traced the root cause. After a series of experiments, I found that ARM has some inherent pra...[Details]
1 Brushless DC motor control principle
The brushless DC motor system consists of four parts: motor, rotor position sensor, electronic switch circuit and drive circuit. Its working principle dia...[Details]
1. IGBT Introduction
The normal operating frequency of IGBT is 10-20kHz, and its switching speed is much faster than GTO and IGCT. It is a better choice in AC motor variable frequency speed re...[Details]
Automotive LED lighting technology has been rapidly popularized, and it has shown great advantages over traditional lighting systems in terms of energy consumption, brightness, and shape. Currently, ...[Details]
With the development of power technology,
digital power
management technology is increasingly used in various systems. Most systems today only have power management chips in addition to the...[Details]
To operate the OLED, connect to the OLED through three lines (SCK, DO, CS). There is no DI here because 2440 only transmits data to the OLED but does not receive data.
gpio_spi.c implements gp...[Details]
According to reports on February 24, LG Display (LG Display) has adjusted its business structure by focusing on automotive panels and is committed to obtaining more automotive panel orders. Agency ...[Details]
Currently, most of the Bluetooth speakers on the market still use the USB-micro interface, and the charging power is only 5-10W. Not only is the charging efficiency slow, but if the Bluetooth speak...[Details]
In order to create an energy-saving and efficient smart lighting system, the use of MCU and dimmable drivers for environmental sensing and high-efficiency dimming has become a popular design trend ...[Details]
The near-infrared spectrum (1) refers to a section of the electromagnetic spectrum between the visible spectrum and the mid-infrared spectrum, that is, the light region between 780-2526nm. Near-i...[Details]
This article introduces a photoelectric complementary LED street light controller , which controls the solar panel to charge and discharge the battery pack, detects the battery capacity in real time,...[Details]
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