How to write a single stream driver for the keyboard? There are two unsolved problems. I would like to ask the experts: (1) How can the keyboard driver send the scanned keyboard value to GWES? Which f...
i.MX25 is a Freescale ARM9 processor with a 400MHZ main frequency and a DDR2 controller. It is designed for the industrial market and is similar to TI's AM18xx and atmel's. This is a good choice for i...
Unstable, resources cannot be uploaded. Sometimes when the upload interface appears, the username is not yours!! And no resource has been uploaded successfully. Although it is prompted to be successfu...
[i=s]This post was last edited by YangTwo on 2021-7-23 15:38[/i]Today I received the PG22 board sent by the moderator. It is very beautiful and I would like to share it with you.
First of all, the red...
I'm working on a stepper motor recently and want to use a single-chip microcomputer to control it. However, the stepper motor is relatively large and the drive current is over 2A. Could any experts pl...
Hello everyone. I've been studying the SBL upgrade of CC2540 recently. When I used the official Serial Bootloader Demo Tool V1.1 tool to import the bootload BIN file into the target board, a timeout e...
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]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[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]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[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]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
Embedded System
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