If you need to speed up computations on your NetBurner module but don’t know where to start, you’re in the right place. During my intern project developing a 1/8-scale autonomous vehicle, I hit a brick wall when computationally intensive tasks started to fail. Instead of accepting that I had reached the limit of the board’s performance, I decided to buckle down and managed to decrease the runtime of computationally intensive tasks by an order of magnitude. This article will discuss the simplest things we can do to measure and improve performance. The provided code is designed to run on a NetBurner module but techniques discussed can be applied to any embedded development project.

Published in Learn
Thursday, August 30, 2018 5:33 am

Visualizing Sensor Data with WebGL and WebSockets

The saying goes that a picture is worth a thousand words. By that reasoning, a web-based 3D scene complete with models, textures, lighting, and animations must be worth at least a million. It can't be denied that data visualization can be extremely beneficial when it comes to understanding complex and frequently multi-dimensional data-sets. What better place to take advantage of these informative and rich 3D or 2D visualizations than in the field of embedded systems? It is a realm where sensors and measurements abound, and analyzing the data flow coming from them can often feel like taking a drink from a firehose. If you are still displaying your data from CSV files or boring tables, this tutorial will open your eyes to some truly amazing possibilities!

Published in Learn

This post provides a start to finish description of how to go from opening your first NetBurner Network Development Kit (NNDK) box to getting your first application running. While every NetBurner kit comes with a "Quick Start Guide", we've been asked on occasion to provide a more visual and detailed step by step guide and this is it!

Published in Learn
Wednesday, April 25, 2018 9:27 am

Debug like a Warrior. Part II

At NetBurner we do our best to deliver a turnkey experience that is easy, fast and as seamless as possible. Yet, there are times when you need to sharpen your sword and drive into battle against hordes of… Bugs! This doesn’t happen in most simple out of the box applications; however, one of the advantages with NetBurner is that we enable cavalier and experienced engineers to develop and tailor the embedded software to get customized functionality. This can sometimes introduce some less predictable and difficult-to-eradicate bugs, gremlins, goblins or demons. In this sequel, we’ll pick up with a few more techniques that will further train and empower you to recognize and exterminate those digital foes like a true warrior. If you missed the first part of this article you can catch up here.

Published in Learn
Tuesday, February 27, 2018 9:13 am

SSL Serial Tunneling

Enabling NetBurner’s Built-in Secure Serial Capability

Let’s be honest, if you had a “kick me” sign taped to your back, you’d want someone to tell you it was there, right? Well, today we’re here to do you a solid and give you the lowdown on a feature that’s already built into your NetBurner Serial-to-Ethernet (S2E) device. Something that adds that extra layer of security and lets you walk the halls with ease.

Published in Learn
Tuesday, January 30, 2018 8:31 am

Warrior’s Guide to Embedded Debugging - Part I

There is nothing more frustrating than having a problem and feeling helpless while some oracle on the other end of a nebulous contact form decides your fate. In the ideal world you would be able to solve your own problems without ever needing outside help, right? Our goal at NetBurner is to make the product in such a way that you rarely need support; not because we don’t want to help you, but to get you farther, faster. We still have a way to go and that’s why we take pride in the quality of our support, blog posts and community forums to fill those remaining gaps.

Published in Learn

These days, special consideration into the security of your internet accessible devices is a must. The proliferation of the Internet of Things (IoT) has provided a multitude of opportunities to hackers. Installing an SSL certificate on your IoT devices is a terrific way to protect your data and IoT from attack. Not all IoT needs to be secured but for systems that are accessible via internet, rather than just a local area network, it’s a good precaution for preventing data breaches and malware infections.

Published in Learn

In this article, we will make a WebSockets dashboard application that provides real-time monitoring AND control of a NetBurner Core Module from a web browser. Previously in Part 1, we discussed the benefits of using WebSockets and demonstrated how to make a WebSockets application to remotely monitor the state of DIP switches on a NetBurner Core Module Development Kit. Next, we will build on the same example to show how we can also control the NetBurner Dev Kit’s integrated LED array in real-time from a browser using WebSockets.

Published in Learn

Have you ever wanted to display your real-time sensor data on a webpage that can be viewed on any device with a modern web browser? How about a web page that serves as a dashboard for controlling and monitoring your embedded device in real-time? With WebSockets, you can do exactly that! In this article, we will briefly review what a WebSocket is, how it works, its benefits, and dive into a system-monitoring, dashboard-type application tutorial.

Published in Learn
Monday, December 4, 2017 4:10 pm

Cover Your Data Assets with TLS

Getting Started with Transport Layer Security for Your IoT and Connected Devices

The Internet of Things has become an increasingly popular and susceptible attack surface for hackers, leading to some scary incidents. Significant and ongoing data breaches and malware infections have been reported with Ethernet-enabled baby monitors, medical devices, cameras, refrigerators and automobiles, to name a few. [ 1, 2 ] In this article we will give a bit of understanding into the TLS protocol and its benefits for IoT and Ethernet-enabled systems. We’ll also get you going with a tutorial on how to test a TLS connection between a PC and a NetBurner Serial to Ethernet Device.

Published in Learn

Imagine you have to deploy a dozen various devices throughout a factory floor. These consist of Linux PCs, low power embedded devices, a mobile phone app, simple sensors, and a remote database. Some devices are connected through Ethernet, while other more remote devices utilize a cell network to occasionally phone home. The problem you now have is, how do I get these devices communicating with each other in real time? MQTT is an ISO standard protocol used to solve this problem.

Published in Learn
Wednesday, September 27, 2017 12:00 am

Get on the I2C Bus!

I2C: The Kindergarten Classroom of Protocols

Have you ever found yourself daydreaming idly, “If only there was something out there that allowed me the luxury of having several ‘masters’ communicate to several ‘slaves’ on a single embedded device… BUT -- with only two wires?” If so, then prepare to have your dreams come true! What we are going to look at today is a protocol and bus all rolled together called I2C, or more formally, Inter-Integrated Circuit. It’s a handy toolset to understand and have at your disposal as it is utilized in a wide variety of embedded platforms, data acquisition systems, components and sensors. That’s also why we at NetBurner include I2C in most of our embedded Ethernet web servers (core modules) and serial to Ethernet servers, along with an easy to use API – so let us show you how to get the most out of that technology including a code example at the end of the article!

Published in Learn
Wednesday, August 23, 2017 12:00 am

Demystifying Serial Tunneling

In this article, we’ll explain Serial Tunneling and how this powerful capability uses Ethernet to connect two or more separated serial end-points. We’ll also introduce you to our products that are designed to easily deliver this capability and get you burnin’ some proverbial rubber with minimal effort.

Published in Learn

Handling serial data streams is our bread and butter. In a majority of cases, NetBurner’s serial device platforms are ready for your Serial-to-Ethernet applications right out-of-the-box; however, in applications that require precision serial data timing, additional processing may be needed. In this article, we’ll show you an implementation of callback functions to handle these scenarios.

Published in Learn
Tuesday, June 20, 2017 12:00 am

DIY Mobile Controlled LED Strip

Ever see an LED light strip and think to yourself, "Man, if only I had a device that would let me remotely control that from my mobile phone or computer." Well friend, I'm here to tell you that your dream can soon become a reality. With NetBurner's MOD54415 or MOD54417 development kits, you can have a remote controlled LED light strip in a little over an hour. To see just how this is accomplished, follow the guide below.

Published in Learn

Last week Sparkfun Electronics announced a new, open source cloud server application called Phant. Phant acts as a logging tool which allows any device to read and write data to and from the service. Additionally, Sparkfun also created data.sparkfun.com, which is a free service running phant. This service allows anyone to save up to 50MB worth of data to the cloud, allowing 100 pushes over 15 minutes, which averages out to a push every 10 seconds or so.

To send data to and from the service, you just need to register a new stream. Registering gives you a private key and public key for accessing the data. A private key is required to update that stream, while a public key grants access to any other stream on the service.

Published in Learn

In this video watch a live coding session on how to connect to a TSL2561 light meter via I2C, dump that data to serial, and then send the reading to the cloud. Also, don't forget to check out the new Internet of Things (IoT) Cloud Kit!

Published in Learn
Sunday, December 8, 2013 12:00 am

Build an interactive kiosk

Interactive retail kiosks are everywhere. We all recognize the pervasiveness of these devices - whether you're rushing through a self checkout machine at the hardware store or testing speakers at a department store. In a previous articles, we covered how to create interactive buttons on embedded LCD touch screens and how to play audio on embedded devices. Lets put this all together to build an interactive audio kiosk!

Published in Learn

In modern times, everyone carries a powerful computer in their pocket. Smart phone technology gives your eyes and fingers an easy way to manipulate data. This intuitive interface is not restricted to your smart phone. Touch screen displays are also available for your own embedded creations. A touchscreen and display allows the device to be controlled and used without a PC interface.

Published in Learn
Wednesday, August 14, 2013 12:00 am

How to set up an NTP server on your network

How do you synchronize the machines on your network to the same time? This articles describes how to set up an NTP server and configure Windows, Linux, and MacOS computers to use it.

In a world where timing is everything, time servers, especially GPS NTP Servers, address real needs and have immense benefit for an array of applications. The current mass-scale and ongoing proliferation of our connected world (e.g. smartphones, tablets, PCs, automation and IoT devices) is, in large part, made possible through networked time synchronization. This is often accomplished with NTP and through time servers. There’s common use in banking and Point of Sale (POS) systems, remote sensing, distributed IoT, automation, industrial controls, biotech, high-speed sensor fusion, cloud computing and security networks.

Published in Learn

Power over Ethernet (PoE) applications can vary widely with regard to product design requirements. NetBurner module versions with a 10-pin male header in place of the RJ-45 Ethernet jack can be used in conjunction with a PoE power supply module to create a PoE end product. This article will provide a design example of PoE using the SB70LC-200IR and SBL2E-200IR modules.

Published in Learn

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