A recent edition of “The Amp Hour” podcast had Chris and Dave interviewing “Sprite_tm” (aka Jeroen Domburg) of Espressif. Amongst all the other things this interesting Dutchman has accomplished, he added symmetric multiprocessing support to FreeRTOS on the ESP-32 (which has two identical 32 bit processors). I came completely unstitched hearing this toward the end of tantalizing news about the software tool chain available for this ESP8266 follow-on. Transparent multithreading with complete control over processor affinity (i.e. either bound or freely scheduled) was the final brush stroke painting a picture of superior infrastructure, open source accessibility and the usual unbeatable price point of the Espressif hardware. Wow.
Monthly Archives: September 2017
September 11 Meeting Recap
- Announcements
- Sparkcon starts this weekend with “Geek Expo of Maker and Digital Arts” back at the Redhat Annex on Saturday from 11am to 5pm. And this just in. Adam and Dan will be there with this stuff:
Maniacal Labs @ Sparkcon this Saturday: they’re back! - Raleigh Mini MakerFaire is September 23rd. Splatspace will have a learn to solder booth and other things to share. TriEmbed is passing this year but multiple folks will be attending with handouts.
- Sparkcon starts this weekend with “Geek Expo of Maker and Digital Arts” back at the Redhat Annex on Saturday from 11am to 5pm. And this just in. Adam and Dan will be there with this stuff:
- 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.
- Show-and-tell
- 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
September 11th Meeting: Home Automation
“I am Ben Goldberg, a 5th grader in Durham. I am proficient at programming in Arduino and Python and playing Pokemon GO. 😉
My talk is about a smart home light I made for my bedroom using a Raspberry Pi as the server and a ESP8266 to control the light and be a client on my Raspberry Pi.”
Come to the meeting and learn how to make a smart light that integrates with Apple HomeKit. This presentation, another Problem of the Month, and the usual discussions and show and tell are all in store. Meeting details