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Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
...tps://blog.cavedu.com/2017/02/ ... %e6%8e%a7%e5%88%b6/
本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。
App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕：Btn_Connect / Btn_DisConnec...
How do I find which rpm package supplies a file I'm looking for?
...
Furthermore, yum whatprovides ... only requires root if the application is a root package (i.e. it resides in /sbin). However, rpm -qf ... also requires root in order to read rpms from /sbin. Therefore, I propose that the root requirements are functionally equivalent for b...
Find running median from a stream of integers
...Add next item to one of the heaps
if next item is smaller than maxHeap root add it to maxHeap,
else add it to minHeap
Step 2: Balance the heaps (after this step heaps will be either balanced or
one of them will contain 1 more item)
if number of elements in one of the heaps is greater ...
Authorize a non-admin developer in Xcode / Mac OS
...This solution didn't work for me until I added -u <name-of-account-with-root-access> to the options. So my full command was dscl -u <root-account> . append /Groups/_developer GroupMembership <my-account>
– dsjoerg
Dec 27 '13 at 20:00
...
CSS, Images, JS not loading in IIS
...
I had the static content role installed
My Web Application was in the wwwroot folder of IIS and all the Windows Folder permissions were intact (the default ones, including IIS_IUSRS)
I added authorization for all the folders that contained the CSS, JS and images.
I had the web application folder o...
PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
...a pure UTF-8 stack all the way through to your database. I have been using MySQL's utf8mb4 encoding for tables, fields, and connections.
My situation boiled down to "I just want my sanitizers, validators, business logic, and prepared statements to deal with UTF-8 when data comes from HTML forms, or...
Accept server's self-signed ssl certificate in Java client
...t domain had gotten its certificate from this provider. See Will the cross root cover trust by the default list in the JDK/JRE? -- read down a couple entries. Also see Which browsers and operating systems support Let’s Encrypt.
So, in order to connect to the domain I was interested in, which had ...
How can I respond to the width of an auto-sized DOM element in React?
...: 'div',
};
remeasure: () => void = throttle(() => {
const {root} = this;
if (!root) return;
const {domProps, computedStyleProps} = this.props;
const nextState: $Shape<State> = {};
if (domProps) domProps.forEach(prop => nextState[prop] = root[prop]);
if (c...
Smooth scrolling when clicking an anchor link
...ctor, so that it doesn't run every single time an anchor is clicked:
var $root = $('html, body');
$('a[href^="#"]').click(function () {
$root.animate({
scrollTop: $( $.attr(this, 'href') ).offset().top
}, 500);
return false;
});
If you want the URL to be updated, do it wit...
Android: Storing username and password?
...ld say it's risky to persist password information as is in preferences. On rooted phones it is possible to access the preferences file of an app. The least you can do is obfuscate the password.
– Jayesh
Dec 18 '09 at 18:15
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