[i=s]This post was last edited by lb8820265 on 2020-9-13 19:13[/i]HID (human interface device) is also called human-machine interface device. Our common mouse, keyboard, game controller, etc. are all ...
The buttons ID_BTN_CIRCLE and ID_BTN_RANDOM need to use pictures to make CheckBox functions, and determine the selected and unselected states according to two global variables. Then change these two g...
The microcontroller used is MSP430F5438, which is an older one. But it has more serial ports, so I still like it.
When using the SPI hardware interface, initialize the program code:
void halCom3Init(v...
Now the MCU is an STM32 chip, and the GPRS module is a Huawei GTM900. By searching for information, if the protocol stack inside the module is not used, you have to implement the PPP protocol and TCP/...
Yesterday I wrote a program using the firmware library in the CoIDE environment. Today I want to use the method of operating registers and configure registers in the same way as 51 and msp430 microcon...
I found that there are quite a lot of information about S5PV210 on the Internet. I also studied and researched S5PV210 PWM on Baidu. I got this PWM today, so I will report my learning progress to you ...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[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]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[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]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]
MEMS sensors
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