toggled led

The checkable option is not selected by default. The button is a trigger button by default. Press it and it will pop up immediately. After the checkable option is selected, the button changes to the toggle button, which can be in two states: Press/play; at this time, the button can emit a toggled (bool) signal, combined with the slot function setvisible (bool), it can be used to display controls alternately; The two "more" buttons in the figure

) {super.handlemessage (msg); Shownext (); handler.sendmessagedelayed (new Message (), ();} };Simply put, it is to send a message to himself, reminding himself that time is up, and that he should take his medicine (to do something). And then you have to tell yourself that after the 5s also take medicine, so have been taking medicine, do not give up treatment.I think, when it comes to this, it should be understood that the function of this code is to achieve automatic image switching.At this p

When you develop mobile apps and web apps with jquery Mobile, the page switch flashes.Feeling, the reason for this is probably the poor performance of jquery mobile under the browser. JQuery Mobile page Switching can have a lot of effects, defined by Data-transition. Hyperlinks and script jumps can all be defined.The data-transition is defined as none, the page jumps when the basic will not appear flashing.Html:a href="demo1/demo1.html" data-transition="None"> Javascript:$.mobile.changepage

Label:12c, each log switch will change the permissions of Alert_sid.log From:Alert log file ' s permissions change with every log switch in 12c (Doc ID 1637367.1) Suitable for:Oracle database-enterprise edition-version 12.1.0.1 and laterInformation in this document applies to any platform. Symptoms: When trying to set the group write bit in the OS Permissions for the alert log file it gets reset after every log switch for example: [[ email protected] trace]$ pwd /u01/app/oracle/diag/rdbms/orc

Often see someone on the Internet to ask the difference between LCD and LED display, small knitting is here a more comprehensive explanation of LCD and led differences in the end what is it? Manufacturers to promote the LED backlight energy-saving, environmental protection is a gimmick Mody? LED LCD difference is it re

The experiment in this chapter will realize the real Linux driver, which will realize the direct interaction with the hardware. 4 LED lights need to be controlled . the implementation principle of 7.1LED driveIn fact, it is not the Linux driver that writes data directly to the memory in the hardware, but interacts with the native I/O memory. I/o Memory is a mapping of hardware in host memory that is connected to the host through various interfaces.

Interrupt-key control LED status, key led status Program function: press the button to control the LED status and interrupt the implementation.Symptom: When you press the k key, LED0 will always flash, thus affecting other LEDs.Note: Use the Dupont wire to connect the P3.2 pin (INT0) to the switch K pin. Program: ORG 0000 h ljmp main org 0003 H; External Inte

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1. The mobile phone default state is not turned on to turn on the LED indicator function, if we want to recharge the phone when the message reminds us we can click the "Application." 2. Click "Application" to enter and find "Set" button click Open. 3. Then click "Sound and Notice" in the "settings" that are open. 4. Slide up the screen, click on the "led" right slider, green Repre

First contact with the microcontroller, my first experiment: let the microcontroller on the 4th led lit up.Step one: Create a new Keil folder on the desktopStep two: Open Keil uVision4,Step three: Create a new project fileStep four: This will bring up the interfaceClick on Atmel to select At89c51Five: Click File->new and save to create a. c fileSix: Start compilingRemember to save the file after compiling and clickThen click on output-"Create HEX file

Today according to the latest demand to the LED light flashing frequency changes, the default 2000ms to 10000ms, but after the change did not produce the expected effect, but into a constant, baffled its solution, and finally read the fucking code, from the top layer , all the way to chase down, finally found the problem, the following directly on the MTK led driver code:#define PMIC_PERIOD_NUM 9//* PERIOD,

LED Ceiling lampand theLED Tube LightThey are the indispensable lighting and decorations for the family decoration. They are both energy-saving and environmentally friendly while the light source color is more gentle, is to create household necessities. But becauseLED Ceiling lampwith theLED Tube LightThere are a lot of similarities on the outside, so many people may not be very clear about the two, do not know what the difference between the differen

Today, we need to modify the flashing frequency of the LED light according to the latest requirements, and change the default 10000 ms to ms. However, after the modification, the result is not expected, but is changed to a constant, finally, I read the fucking code from the upper layer to the bottom layer, and finally found the problem. Next I directly wrote the MTK LED driver code: #define PMIC_PERIOD_NUM

LED marquee 2, led headlight This is the address of the previous Article: http://blog.csdn.net/pandeng4639088/article/details/46550257 In the previous article, I analyzed the principles and rules of the running horse lamp. Although the story would have ended there, I thought about it again on my way to lunch, since A hypothetical length is added to object A, why not map the hypothetical length to object? In

Just like learning to program the first example HelloWorld, learning embedded, microcontroller, FPGA and the like the first example is to light a lamp. For a large Linux system, of course, you can write a character device driver to achieve the LED lights we need, or you can directly use the Gpio port, the application to pull the high pull low pin control. However, since the Linux system itself has led subsy

Port Environment (Bold font in redIs the modified content,Blue bold ChineseFor special attention) 1. host environment: centos 5.5 and 1 GB memory in vmare. 2. Integrated Development Environment: Elipse ide 3. compiling environment: Arm-Linux-GCC v4.4.3 and arm-None-Linux-gnueabi-GCC v4.5.1. 4. Development Board: mini2440, 2 m nor flash, 128 m nand Flash. 5, U-boot version: u-boot-2009.08 6, Linux: linux-2.6.32.2 7. References: Complete embedded Linux application development manual, edited by Wei

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One, what is LCD? LCD is the LCD screen liquid Crystal Display of the full name, mainly TFT, UFB, TFD, STN, such as several types of LCD display can not locate the program input point on the dynamic link library. Notebook LCD screen is commonly used in TFT. TFT (Thin Film transistor) refers to the thin film transistor, each liquid crystal pixel is integrated in the pixel behind the thin film transistor to drive, so you can achieve high speed, high brightness, high contrast display screen info

This article was reproduced from: http://www.voidcn.com/blog/lqxandroid2012/article/p-625005.htmlMany of the drivers for the current Linux version are based on the device model, and LEDs are no exception.Simply put, the device model is that the system thinks all the devices are hooked up on the bus, and to make the device work, it needs the corresponding driver. The device model generates a virtual file system--SYSFS, which gives the user a way to access the kernel device from the user's space,

Seventh chapter LED will blink for me: Control the Light emitting diode7.1 LED Driver Implementation principle7.2 Writing LED drivers7.2.1 Experience the magic of LED driversBefore you test the LED driver, you need to s3c the development Board with a USB data cable, and then