Triangle Embedded Interest Group (TriEmbed) is an informal Triangle, NC (Raleigh/Durham/Chapel Hill/Cary/Apex/etc) area group of people sharing interests in embedded computer/controller systems. This includes hobby-oriented single board computer systems such as ESP32, Arduino, Raspberry Pi, and others, as well as full custom electronics aimed at hobby or business venture activities.
Meeting attendees span the full range from beginners to seasoned professionals. Every meeting is intended to provide a welcoming environment for enthusiasts at any level. The meeting format varies from mostly formal presentations to mostly sitting around discussing topics of interest.
For more information about our meetings and email list, follow the links in the header menu.
A whole bunch of generous folks kicked in for the triembed.org domain renewal this year and we won’t have to deal with this for a long, long time. THANK YOU!
- Problem of the Month
- Paul presented his “counting pushups” problem and gathered ideas submitted by the attendees
- Details of past problem solving sessions are available via the “Problem of the Month” main menu above. Or here.
- Home Automation Presentation
- What can we say? Ben stunned much of his audience, especially during the Q&A.
- Paul gave an update about his power over ethernet development project and his ongoing wrestling match with 802.3AF.
- Alex presented his “leg movement logging via accelerometer using European Data Format” project using a Teensy USB and open source tools and custom Python code. He gave everyone a great accounting of a typical development project based off open source starting points and got the final results he was after. The GitHub repository for his project is here.
- (No notes were taken: if you contributed something please drop a line on the email list so this can be back-filled!)
- General discussion and final questions
Archive of past meeting slides, videos, code and design files
I created a page about my recent presentation with a link to the slides here. Video will be uploaded when it is ready. There is some explanation about the dropped characters we saw in demoB.
—> Paul MacDougal
Craig Cook recorded the most recent TriEmbed meeting’s presentations about C Preprocessing with the Arduino IDE, custom tools for laser-cut acrylic enclosures, getting results from the T962/T962A reflow ovens, and a tool being developed to allow easy bicycle wheel truing.
After being crunched through Handbrake they’ve been put on Youtube. Details of these and past meeting archives are on the TriEmbed Meetings/Archives page.
(By the way: smart phones don’t appear to render the menu bar of the TriEmbed web site’s main page, turning the whole thing into a set of three parallel lines near the upper right corner of the page. Clicking on that drops the nested menus for meeting, email, project info, etc, that is more obviously available with a desktop browser).
I posted slides and code for the examples from the Arduino Interrupt presentation I did on Monday, September 8, 2014. There was discussion after the presentation on how to sleep for an hour or a day or … I added another example to show one way to simulate a long sleep with multiple 8 second WDT interrupts.
TriEmbed has a new home on the Internet. The https://triembed.org URL redirects to a WordPress site now, which is a combination of web pages and a “web log posting” mechanism (via the “Posts” link) with support for arbitrary comment chains. I’ve copied the old content in and defined a few posting categories, etc.
Several of you got mail giving you accounts with “siteauthor” roles. This custom role has more privilege than “author” to allow creating web pages as well as postings, but less than “editor”, so you’re constrained to operate only on stuff you’ve created. Feel free to log in and try things out.
If I forgot or messed up the “initial list” I gathered last month (and which I extended a bit), my apologies. You’re starting out with a randomly generated password. Feel free to change it to something easier to manage, but select one judged by WordPress to be “strong”. Apart from staying polite and mindful of the children reading this list and viewing the site, we must keep it secure. The ISP for my personal domains and I have a happy relationship approaching its 15th birthday, but he’s a stickler about security. This site uses Akismet, Wordfence, and limited login plugins to keep the garbage at arm’s length, but WordPress sites are periodically BOMBARDED with high frequency breakin attempts as vulnerabilities are found and fixed. OK, I’m sure we’re clear about that.
If you just want to be able to log in and comment without the hassle of your comment going through the moderation process except the first tie, say the word (including your desired username) and I’ll give you a “subscriber” account with a minimum of fuss. Your first comment will block for moderation, but after being approved you’ll be able to comment freely.
If you’d like to create content but want help deciding if it should be published (or any other kind of help), request a “contributor” role.
I’m willing for anybody receiving this email msg from the list to have an account on the site. The type of account you can have relates to how well we know you and can trust you. Referencing a URL or three in the mail archive, reminding me (or the list: your choice) of roughly when you last attended a meeting, etc, will help (I knew those sign-in sheets NCSU requires us to keep might have some use some day!) Just drop me or the list a line with your full name, desired username and what role you’d like to start with and I or another admin will take it from there.
I’m happy to upgrade you to editor if you’d like to help develop the site beyond adding content (e.g. helping me fix foulups that step on accepted WordPress best practice). And if you’d like to share admin duties, please send me private email so we can discuss it (and thanks in advance!)
If there’s interest at the August NCSU meeting I’ll fumble my way through a short training session, with any and all help welcome.
We can make either the “posts” or “home” (web) page the default page for the site as we get a feel for what would be most useful.
This site is automatically backed up once a week, with a “ring buffer” of four backups.
(Thanks to Gayathri Jegan Mohan for showing me how Chrome incognito windows can be used to be on the same site with multiple identities. This saved me a lot of time!)