HackRF One Shortage

The past couple of years have been challenging for Great Scott Gadgets. The global chip shortage in particular has put demands on our team unlike anything we’ve faced in the past, and we have been working hard to navigate its effects on our supply chain for HackRF One and our other products. Revenue from the sale of hardware sustains our business, allows us to improve our existing products, and helps us to continue the research and development work that brings new and innovative open source tools to the community. If you have tried to purchase a HackRF One recently, you...

Free Stuff - November 2022

The November recipient for the Great Scott Gadgets Free Stuff Program is Alex of the CCCSBG Hackerspace. A group of people at the CCCSBG Hackerspace are making an effort to explore the protocol spoken between ancient IBM3270 terminal equipment and their controller. Alex points out that Andrew Kay has done similar work for text-only traffic [1], but mentions that his hackerspace wants to chip away at the graphics capabilities of the IBM 3270. We have sent Alex and CCCSBG a GreatFET One so they can sniff the traffic that is going through the NS DP8340 and NS DP8341 chips on...

Social Media Update

Find my latest posts at Bluesky (https://bsky.app/profile/tubetime.bsky.social). I’ve also been active since 2022 on Mastodon as @tubetime@mastodon.social.

December Update: Merry Christmas and Happy New PineTab

Merry Christmas, happy holidays and a Happy New Year to you all. This month’s update has a different formula from the usual - aside from the announcement of the PineTab2, most of this month’s content is dedicated to looking back at this year and taking a sneak peak at what’s to come in 2023.

RetroNetCall: "ISDN B-Channel protocols"

I've presented about ISDN B-Channel protocols (X.75, V.120, V.110, T.70, ...) as part of the RetroNetCall talk series on retro-networking technology.

You can find the video recording at https://media.ccc.de/v/retronetcall-20221207-laforge-isdn-b-channel-protocols

Many people with some kind of telecom background are familiar with D-channel (signalling) protocols of ISDN, and you can find many publications on that topic. Surprisingly, much less publications are talking about the B-channel protocols used for data transmission, like VX.75, V.110, V.120, T.70, ...

A Christmas tree bauble that plays Doom

Now you can shoot zombies and imps on your Christmas tree as well.

A Christmas tree bauble that plays Doom

Now you can shoot zombies and imps on your Christmas tree as well.

A Christmas tree bauble that plays Doom

Now you can shoot zombies and imps on your Christmas tree as well.

Updated Delivery Date

Note: This is a crosspost of a Cynthion update on Crowd Supply: https://www.crowdsupply.com/great-scott-gadgets/luna/updates/new-delivery-date

With almost every project, delays tend to happen. LUNA is no different. In good news, we have received all of the components needed for LUNA. In not-so-good news, we have not been as lucky in gathering components for the other products at Great Scott Gadgets. Over the last couple of months, we’ve had to move our head hardware designer (Michael Ossmann) from the LUNA project and onto redesigning some of our other hardware so Great Scott Gadgets can continue to exist through this chip shortage. The result is...

New MAC Address Range

We are happy to announce that Onion Corporation has a new MAC address block. Onion devices can now have MAC addresses in the range of 88:1E:59:00:00:00 – 88:1E:59:FF:FF:FF, with 88:1E:59 being the new OUI (Organizationally Unique Identifier).

A MAC address, or Media Access Control address, is a unique identifier assigned to network interfaces for communications within a network network segment. Every Omega2 device is allocated three sequential MAC address during production, one for each of the available network interfaces:

Simply because we’ve used...