I used a relay to switch the positive pole of the 24V power supply. After using it for a while, I found that when I disconnected the relay voltage, the relay was electrocuted but not disconnected.
The...
I would like to ask,MOV.B #001H, &P1DIRDIS.B #001H, &P1DIR,both of these sentences make P1.0 in output mode, but what is the difference in their usage? Why do all the examples use DIS.B? Thank you...
一套系统可同时学习WinCE、Linux、Androi，并提供全套课件。
目前於台湾地区已被30多所的大学大量采用，作为"嵌入式应用开发"标准课程"嵌入式应用"已经确认为未来最重要的 IT 终端应用的发展趋势，也是国内IT人才需求量最大的领域。然而，由於嵌入式应用的硬件配置复杂、应用需求多样，使得嵌入式应用的教学难度变得极为复杂，特别是教材的设计。有鉴於此，知名科技公司丽台科技特别推出 WinFa...
BLE CC2541 as low-power smart hardwareIntroduction: Recently, due to project needs, CC2541 is used to make a smart hardware similar to a Bluetooth bracelet, which can collect human body temperature, d...
Preface
This time, based on the timer's PWM output and segment code display, the function of a PWM generator is realized.
process
Based on LCD_TK.
Use the upper 4 digits to display the period, unit 10...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
Embedded System
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