Let's first briefly introduce the operating principle of LCD. As shown in the LCD schematic diagram below, each dot in it is a pixel. Imagine there is an electron gun that emits light of various color...
A schematic diagram found on the Internet. Now replace the L in the diagram with a passive crystal oscillator, as shown belowCan this achieve oscillation? Does oscillation require R1 to be much larger...
It's not fun if you can't debug. I can't afford an expansion dock, so I soldered two DF12 (4.0) male connectors to an emulator and tried it. I searched many stores and finally found one that was reaso...
IntroductionWith the continuous development of the communication industry, mobile terminals have evolved from the original single call function to the comprehensive development of voice, data, image, ...
The screen module's power supply voltage is 11V~26V, so choose 12V, which is easier to connect. There is a socket that can output 12V. Although the board power supply does not lead to a standard inter...
introduction
This paper studies the use of MAX7219 and BC7281 control chips to achieve different display and control of LEDs.
1.MAX7219 display mode application
1...[Details]
Due to misoperation of the circuit breaker or the grounding of the DC system, which causes the relay protection to malfunction, the generator may suddenly lose its load, i.e., load shedding. For th...[Details]
Dafu Technology announced on the evening of November 17 that it plans to change the use of funds raised from the USB3.1 Type-C connector expansion project to acquire part of the equity of Peitian Int...[Details]
In 2018, the global photovoltaic installation capacity was about 103.3GW. IHS Markit analyst EnergyTrend believes that the global photovoltaic installation data in 2019 will only be higher than that i...[Details]
Last week's lab class was as usual. First of all, the preparation was not done well. The J-Link driver was not installed properly. In addition, due to the problems of the computer in the computer ro...[Details]
The Canadian
Robotics
Commission (CRC) has entered into a $100,000 funding partnership with the Next Generation Manufacturing Centre (NGen) in December 2023, a global innovation cluster for...[Details]
AVR has different interrupt sources. Each interrupt and reset has a separate interrupt vector in the program space. All interrupt events have their own enable bit. When the enable bit is set and the ...[Details]
On June 29, 2023, GCL Energy and Huawei Digital Energy signed an agreement at Huawei's headquarters in Shenzhen, and the two parties reached an all-round cooperation on the construction of an i...[Details]
I recently came across the STM32L0 series MCU, which is also powered by dry batteries to give full play to its ultra-low power consumption. I want to obtain the current power of the dry battery pack....[Details]
Should T8 LED lamps be subjected to a withstand voltage test before they are aged after manufacturing? Some manufacturers skip this step and ship them directly after aging. Why? The answer is that ...[Details]
In the last class, we mentioned the internal structure of one of the microcontroller IO ports, the "quasi-bidirectional IO". In fact, our microcontroller IO port has three other states, namely open d...[Details]
The MAX9614/MAX9616 are low-power, high-precision
operational amplifiers.
These devices are
ideal for a wide range of
signal processing
applications such as photodiod...[Details]
Recently, foreign media exposed a Sony 100-megapixel full-frame sensor named IMX555CQR. It is understood that Sony's 100-megapixel full-frame sensor adopts a special CFA-based column-parallel ADC...[Details]
The 2022 APEC Business Leaders China Forum was held in Beijing on the 3rd. The theme of the forum was "Towards a Green Economy." Participants conducted extensive discussions on regional green and low...[Details]
Today, let us walk into the production workshop of CATL and see how this battery cell, which is being fought over by Volkswagen, BMW and Mercedes-Benz, is manufactured.
A battery cell is...[Details]