[backcolor=rgb(222, 240, 251)]The circuit uses LCD backlight driver chip MM3302DJ, 5V power supply, LCD_BL has a wire flying. [/backcolor] [backcolor=rgb(222, 240, 251)]EN3.18V, but FB voltage does no...
[size=4][color=#000000][backcolor=white]In actual use, development is often based on a demo, but the project name of the demo often does not meet the name of the new project. If you re-establish the p...
The LCD screen I bought today has arrived. The chip is ST7735. I bought it for 9.9 yuan.
I spent a lot of time on the SPI driver before. Today, I will drive the SPI display based on the previous work,...
[i=s]This post was last edited by dcexpert on 2019-11-4 11:01[/i]This is a discussion on the official English forum of micropython: Is there some successful MicroPython products? The poster seems to b...
[align=left][color=rgb(51, 51, 51)][font=-apple-system-font, BlinkMacSystemFont, "][size=17px]It has been more than 10 years since I first came into contact with FPGA in college. I still remember the ...
In Chapter 9, the function rt_list_entry() is defined at the beginning of the file scheduler.c. Isn't it inappropriate because it is referenced in the file clock.c?...
In order to drive the chip from an external clock source, XTAL1 must be connected as shown in Figure 21. At the same time, the fuse bit CKSEL must be programmed to “0000”. If the fuse bit CKOPT is al...[Details]
Source: Number of vehicle factory certificates; Analysis and charting: Electric Vehicle Observer In June, China's power battery installations resumed their month-on-month growth trend, increasin...[Details]
The radar level meter adopts the working mode of transmitting, reflecting and receiving. The antenna of the radar level meter emits electromagnetic waves, which are reflected by the surface ...[Details]
It's been a long time since I last updated~ I am now starting an internship. My company is currently developing a card-plug power-drawing module for hotels, which is implemented using STM8 and RFID...[Details]
On April 19, Apple announced the latest details on increasing the use of recycled materials in its products. For the first time, the company used certified recycled gold in its products and more than...[Details]
According to information on June 7, Huawei's Hongmeng system has passed the trademark certification of the State Administration of Industry and Commerce and the European Intellectual Property Office....[Details]
1. What is
ripple
?
Ripple is defined as the AC component superimposed on the DC stable quantity in a DC voltage or current.
It has the following main disadvantages:
1.1. It ...[Details]
Notice: Before the kernel starts, uboot can do some hardware initialization work, such as initializing the serial port. At the same time, uboot supports different machine IDs. When uboot starts, you ...[Details]
Many MCU learners always fail to grasp the key points. From the high enthusiasm at the beginning of learning to the frustration and giving up at the end, everyone has a feeling of both love and ...[Details]
CAN bus is a serial bus developed by Bosch of Germany to solve the data exchange between multiple sensors and controllers in modern cars. Due to its high communication rate, long communication dist...[Details]
Analysis of network monitoring application problems
The network infrastructure is one of the important factors for the healthy development of the network video surveillance market. At present,...[Details]
Last month, US President Trump sent a tweet to Apple CEO Cook, lamenting that the iPhone without a Home button was difficult to use, saying that the old Touch ID was "much better" than the new...[Details]
0 Introduction
Carbon monoxide (CO) is the most common toxic, harmful, flammable and explosive gas, which brings great harm to industrial safety production. Therefore, it is very necessary to d...[Details]
As a backup power source, batteries have been widely used in computer networks, communications, electricity and other fields. The charge of the battery is closely related to the reliability of the en...[Details]
Pointer multimeter is a multi-purpose, multi-range instrument. It is very convenient to use and therefore widely used. Generally, pointer multimeters can be used to measure DC current, DC voltage, AC...[Details]
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