Edi Wang

Windows / XAML 73


Remote Deploy and Debug UWP Apps

These days I am developing an App that need to be tested on multiple languages environment. I can set my local dev box to different language, and restart or sign out / sign in to Windows again to test different languages. But this is very inconvenient. I want to setup a Windows 10 virtual machine with Chinese language and let Visual Studio 2017 deploy and debug the App right into the VM. Back the...

Debug UWP

Create QR Code in Windows 10 UWP

A year ago, I wrote an UWP application that can generate QR Code. However, at that time, the QR Code library I used was ZXing.Net, the last update for this package was in 2014. Now, time has changed, the author of ZXing.Net seems not to update the package any more. However, we have to move on, so I found a fantastic new library to generate QR Code in .NET applications: QRCoder To use that packag...

UWP QR Code

UWP App for the Raspberry Pi Azure Surveillance Camera

I wrote a post about Raspberry Pi Surveillance Camera with Linux and Azure, it was using an ASP.NET website for displaying the photos. I made an UWP client App these days, you can download from here https://www.microsoft.com/store/apps/9nblgggzfnv0 (Because WP is already finished, so I don't provide Windows 10 Mobile package) It doesn't allow upload photos, because the photos should all come f...

MVVM PIN Microsoft Passport Binding

Reed Controlled Light by Windows 10 IoT Core

Reed switch is an electronic component to connect / disconnect the switch by magnetic field. When it touchs magnetic field, the two iron sheets inside the tube will clip together, so the switch is connected.  The application of Reed Swith: Door light controller: When you open the door, turn the light on. When you close the door, turn off the light. This is simply install a reed switch on your do...

Windows 10 IoT Raspberry Pi

74HC595 4 Digits LED Tube with Windows 10

One of the common used LED Tube driver chip is 74HC595, by using the Chip, you can save GPIO ports. I bought a LED Tube with 595 chip, it only need 3 GPIO ports to display 4 digits. However there is no existing posts about how to drive the 74HC595 LED Tube from Windows 10. So I can only try for myself. 1. Physical Connection VCC to DC3.3 power, GND to Ground, DIO to GPIO27 (you can change it, an...

Windows 10 IoT Raspberry Pi

Azure Fire Alarm by Raspberry Pi and Windows 10 IoT Core

防火是日常生活中非常重要的意识,如果你是一只恩爱狗,出门在外,家里被FFF团点了,那真是太惨(hao)了。如果你恰好有Windows 10的设备,比如Lumia,Surface,能及时收到火警是至(mei)关(sha)重(luan)要(yong)的。今天就教大家如何用Microsoft Azure公有云+Windows 10 IoT Core在树莓派上实现一个远程火警系统。 阅读这篇文章,你需要的前置知识: Windows 10,UWP的基本开发能力 MVVM基础知识 ASP.NET MVC的基础知识 树莓派、GPIO及逻辑电路的基本知识(也就是大学里的计算机电路) Azure公有云的使用经验 ……当然,还要有对微软的信仰 一、设计原理 基本想法是,通过火焰传感器的输入信号,触发一个警报,把消息发送到Azure上的Notification Hub,这个服务是专门给Wind...

Azure Windows 10 IoT Raspberry Pi

Azure Remote Controlled Light with Windows 10 IoT Core

For those who have watched the "Big Bang Theory", you would probably remember that those physicists build an Internet controlled lamp. The signal send from their laptop traveled around the world and come back to their house to light up the lamp. Now, with Windows 10 IoT Core and Microsoft Azure, we could also achieve the same thing on a Raspberry Pi 3. First, I strongly recommend you to read thes...

Azure Windows 10 IoT Raspberry Pi

Using stepper motor in Windows 10 IoT Core

如果你需要精确控制设备的转动角度,普通电机是做不到的,通常我们会选用步进马达。比如28BYJ-48这个型号的,很容易买到。 步进马达得配合驱动板使用,最常用的是ULN2003芯片的驱动板,就像下图。不过注意,你买到的驱动板长相可能不太一样,不过没关系,只要芯片上写的是ULN2003,就可以使用,它们的接口都是一样的。关于步进马达的原理,可以看这篇: https://en.wikipedia.org/wiki/Stepper_motor  拿到驱动板和步进马达后,将马达插入驱动板的白色插槽中,这个接口有防呆设计,所以不会插反。 关于Windows 10 IoT如何驱动步进马达,有一篇很好的英文材料: https://www.hackster.io/erickbp/stepper-motor-and-windows-10-iot-core-d3c5d6 我的例子就是基于上面这...

Windows 10 IoT Raspberry Pi

Sound Controlled Light by Windows 10 IoT Core

In many buildings, there are sound controlled light in use. When you clap your hands, the light turns on. Now, with Raspberry Pi 3 and Windows 10 IoT, we can make a sound controlled light ourselves. The sound sensor I use is FC-04. As other sensors, the first step is calibration. 1. Calibration for FC-04 Sound Sensor In quiet environment. Connect VCC to DC 3.3V,GND to Ground. At that time, the...

Windows 10 UWP IoT Raspberry Pi

Windows 10 IoT开发:HC-04超声波传感器测距(树莓派3)

HC-04是树莓派上用的比较广泛的超声波传感器,可以用来测量设备和物体之间的距离。可惜网上的资料很少有针对Windows 10的,几乎都是Python和C在Linux上的例子。 hackster.io上有一篇用HC-04做雷达的例子,但是设计的部件太多了,对单纯学习HC-04传感器的使用来说这个例子比较复杂。搜了一圈,英文资料最好的是这篇:http://www.guruumeditation.net/en/digital-io-with-windows-10-iot-raspberry-pi-2-and-the-ultrasonic-ranging-module-hc-sr04/ 国内中文资料介绍Windows 10上HC-04传感器的文章似乎还没有,所以就简单总结一下步骤。 一、物理连接 对于没有多少物理和电子知识基础的人(比如我)来说,第一步连线是比较难的。很多文章都一笔带过...

Windows 10 UWP IoT Raspberry Pi