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 …
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 …
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说“这很 …
I bought a moisture sensor like this recently. After some research, there seem no articles to indicate how to use it in Windows 10. So I figured out myself. This sensor has 4 Pins, which are: PIN Usage AO Analog Out DO Digital Out GND Ground VCC Power So, let's connect VCC to DC3.3v on RPi, I use PIN 01. Connect GND to any ground header, which I use …
I purchased a GY-30 light sensor recently, this model is also known as "BH1550FVI". There seems no sample for this sensor on Windows 10 yet, so I tried to make one. The light sensor looks like this: My board is a Raspberry Pi 3, the GPIO layout is shown in this table: Because GY-30 is an I2C device, so we can not use GPIO to drive it directly, we must use the I2C ports. In addition, …
UWP通常是没有让设备关机和重启的权限的。但是在Windows 10 IoT Core中是有办法实现的。安装Windows 10 Iot Core之后默认启动的那个欢迎页面右上角是有关机和重启按钮的。其实就是个UWP，它的源代码在：https://github.com/ms-iot/samples/tree/develop/IoTCoreDefaultApp 分析源代码可以发现，关机和重启是通过ShutDownManager这个class实现的。 #region Assembly Windows.System.SystemManagementContract, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null, ContentType=WindowsRuntime // C:\Program Files (x86)\ …