你正在用吗G4 or SNAP digital I/O with your Raspberry Pi^®?

A lot of engineers are finding a Pi surprisingly useful in real industrial applications, as well as for prototyping and experimenting. Used with Opto 22's reliable industrial I/O, your Pi can safely switch 5-60 VDC, 120 VAC, and 240 VAC loads.

This week Opto 22 is exhibiting at theOpen IoT Summitin Portland, Oregon. The IoT Summit is aLinux基金会event, packed with a ton of technology workshops and product demos.

去年，我们还在物联网峰会上展出。这是与Linux开发人员社区建立联系并了解事物的绝佳机会，因为它与典型的工业自动化专业人员所面临的差异很大。德赢vwin客户端下载

UPDATE: This post has been updated to reflect changes in the most recent Raspbian Jessie Lite image (no longer includes Node-RED or node.js) and to use the newDigital I/O for Raspberry Pi Starter Kit对于I/O硬件（新代码，照片和视频）。

TheRaspberry Pi^®is an unquestionably powerful computer for just $35. And it really is just that:一台电脑。这意味着PI能够完成许多任务，并且非常适合许多自动化应用程序。

将PI与工业，固态数字投入和输出相结合, and you can build compelling and cost-effective solutions for commercial and industrial applications, too.

One of the easiest and fun ways to quickly build software applications is withNode-RED, the free, open-source software tool designed by IBM Emerging Technologies and used for wiring together hardware devices, APIs, and online services in new and interesting ways.

However, Node-RED is only included in the full PIXEL GUI version of theRaspbian Jessie Operating System, available from raspberrypi.org。Their latest2017-07-05-Raspbian-Jessie-lite.imgbuild for无头操作(no monitor, keyboard, or mouse required) is no longer bundled with either Node-RED or the required software tools node.js and npm.

这篇文章的目的是指导您创建一台无头的Raspberry Pi计算机，该计算机具有最新版本的Node-red，Node.js和NPM，构建节点红色的应用程序，并控制和感知与工业数字I/ I/ I/ I/ I/ I/ I/ I/ I/ I/ I/ I/ I/ I/ Meaction Indial Ighigits I/ I/ Meaction Indigital I/ I/ I/ Meensing GPIOo，迅速而简单。（有关此版本的结果，请参阅该帖子末尾的视频。）

Image: New Opto 22 Digital I/O for Raspberry Pi Starter Kit with Raspberry Pi 3 Computer