A full review of EasyEDA: A circuit EDA online tool

Yahya Tawil wrote in to share his review of a web based EDA tool, the EasyEDA. He explains the general structure of this tool and some of its cool features: EDA cloud tools which are related to electronics are emerging exponentially in almost all aspects (i.e. simulation, PCB design, footprint creation, gerber files viewing and 3D […]

CHINA STUFF: Email that works…

Working from China is a constant reminder that the location of internet services is super important. North America and Europe are just a few internet hops from our servers in Hetzner’s carbon neutral, green energy data center in Germany. From China, however, we’re often routed out through Beijing to San Jose, then to New York, […]

Amazon Web Service Beijing woefully inadequate for international use

Amazon Web Service (AWS) is a bunch of server, storage, and other internet resources. AWS datacenters are located around the world so companies can locate websites close to their customers and speed up page load times. A couple years ago AWS started testing a center in Beijing, China. There’s all sorts of benchmarks on speed […]

Phishing attempt in the forum and how to clean it up

The forum, which runs on the popular phpBB3 software, was hit by a phishing attempt in the last few hours. Around 2000 private messages were sent by hundreds of newly registered users. It’s not clear how this automated attack got past our own spam hammer protection that bars new users from sending private messages. Apologies […]

HOW-TO: Add live websites to GIT without interruptions or security risks

Over at the DEV site we’ve been using GIT repositories hosted at BitBucket.org to push (deploy) changes to the live server instantly. It’s way slicker than uploading changed files by FTP, which has no roll back if something goes wrong. It also solves one of our China internet problems: routing to Bitbucket is much more […]

Global Geek Tour mini site with maps, comments, resources

Geek tourism is a thing. Travel somewhere new, eat the food, drink the beer, and check out the local hacker scene. In Shenzhen we see 5 or 6 visitors a week. Whether a side trip to Akihabara, or a full on expedition through Huaqiangbei, don’t leave home without bookmarking the Geek Tour mini site. Maps […]

Breaking a Teensy U2F implementation: why you shouldn’t write your own crypto

Aidan (a.k.a. makomk) writes: A while ago, Google created a two-factor authentication scheme called U2F. The general idea is as follows. You have a little USB dongle that you can register with sites. When you enable U2F on a site, the dongle gives that site a public key and a key handle, and that dongle […]

Screw it, lets go live! Dev site launch

Dirt cheap SLA 3d prints, custom color PCBs, and not-ripping-you-off pogo test pins are now available at dev.dangerousprototypes.com! We built a bunch of new, no nonsense, instant pricing services modeled after the simplicity of DirtyPCBs.com, please help us test them! Dirty SLA 3D prints – $0.95 per gram for beautiful white SLA 3D prints. Upload […]

Mobile site on desktop?

Had a few reports of the mobile site showing up on desktop views. Sorry for the issue and thanks for the reports! We’re checking it out. Deleted any cache, checked cache settings and mod rewrite rules, etc. It’s not happening for us, but if it effects you please let us know in the comments below […]

Using the RTL-SDR dongle to detect meteors

According to AMSAT-UK, “a new paper has been released by Dr David Morgan 2W0CXV on using the RTL2841 DVB TV Dongle as a SDR processor with SpectrumLab. The paper ‘Techniques for using the RTL Dongle for Detecting Meteors’ covers the setting up and use of the dongle to receive meteor pings from the Graves Radar […]

DIRTY TUESDAY: Measure PCBs and create images from gerber files

A few months ago we started a private PCB website so our team can get cheap PCBs from a fab in China. Someone spilled the beans, and it hit Hack a Day, Hacker News, etc. We almost shut it down, but it was too much fun to hack and refine the process. Dirty Tuesday is […]