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Thanks to Carl, K9LA for contributing to this week's bulletin.
"SUBJ: ASWFC GEOMAGNETIC DISTURBANCE WARNING ISSUED AT 2220 UTC/10 OCTOBER 2024 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.
"A halo CME first observed on 09-Oct arrived at Earth at 10/1515UT, resulting in G4 geomagnetic conditions on 10-Oct. G4 geomagnetic conditions are expected on 11-Oct, with a chance of G5. G2 geomagneti...
The National Jazz Museum in Harlem is celebrating the Afro Latin Roots of Jazz in collaboration with the International Salsa Museum through this Saturday, October 19th.
The International Salsa Museum (ISM) is driven by an unwavering passion to preserve the vibrant and rich history of salsa music and honoring and celebrating the cultural heritage of salsa, ensuring its legacy thrives for future generations. The National Jazz Museum in Harlem (NJMH) is dedicated to preserving, promoting and presenting jazz. This provides a perfect framework for our first-ever collaboration to celebrate the space where salsa and jazz history, music and culture unite.
Check it out before it’s too late!
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Here is a Radio Shack throwback. An mini, self-contained, mono amplified speaker. Very handy for audio work. As typical for electronics from the last century (circa late 1970s), the schematic for the device was affixed to the inside back of the case:
There is a volume adjustment, single stage transistor amp and an LM386 op amp amplifier. On the side is the volume/on/off switch, input and output mono audio jacks. At some point I plugged the output jack so I wouldn’t confuse it with the input jack and get frustrated there was no audio out.
Inside is straightforward and you can see the LM386. I’m bad and not using the recommended Radio Shack 9V battery (as I can’t get them anymore or use my Battery of the Month card).
That’s it! I still have it and it comes in very handy for things like amplifying audio from microcontroller digital to analog converters (DAC) and other circuits. Most people now might use an old PC amplified speaker – that works also, this was a precursor.
On the heels of #SepTandy, Adafruit is celebrating #ShackToberFest, a celebration of all things Radio Shack and Tandy. Tag your social media posts #ShackToberFest!
Don Wilcher uses a Raspberry Pi Pico to build an adjustable clock with an LED display then integrate the clock with a vintage Radio Shack Science Fair Microcomputer Trainer programmed to function as a 7-bit binary counter.
Long before the Heathkit 6800 microcomputer learning system, the Arduino Uno, or the Basic Stamp, there was Radio Shack’s Science Fair Microcomputer Trainer kit. Introduced in 1985, this easy-to-program kit was intended to teach users how microcomputers worked.
In this project article, we’ll upgrade this vintage microcomputer by building and adding an adjustable Raspberry Pi Pico clock with an LED display. After assembling the hardware, we’ll program the trainer to operate as a 7-bit binary counter. Before any of that, though, let’s spend some time learning about the trainer’s features—and, in particular, about the TMS1100 microcontroller at its core.
Don adds a Raspberry Pi Pico programmed in MicroPython, making an adjustable digital clock.
Read the details in the post here.
On the heels of #SepTandy, Adafruit is celebrating #ShackToberFest, a celebration of all things Radio Shack and Tandy. Tag your social media posts #ShackToberFest!
Read more of this story at Slashdot.
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Mid-century Modern may be a bit of a punchline for some folks. But for others, the design philosophy of mid-century modern furniture, architecture, and appliances conjures up imaged of Frank Lloyd Wright and the really cool apartment with the sunk living room in Mad Men. For Love Hultén, mid-century modern inspired a new take on synthesizer design. Here’s more from COLOSSAL:
Whether ocean-themed, compact with a slide-out keyboard, or installed vertically on the wall, Love Hultén’s elaborate custom synthesizers…are one-of-a-kind. Combining a love for woodworking and sound art, the Gothenburg, Sweden-based artist and designer merges electronic elements with a wide range of console designs evocative of early computers and mid-century industrial control systems. Incorporating playful elements from video games or aesthetic themes—”C O U S T E A U” features oxygen tank details and a custom MIDI crab—Hultén activates each sculptural instrument into original audio-visual experiences.
Read more of this story at Slashdot.
Read more of this story at Slashdot.
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The Adafruit Feather ecosystem is so rich with hardware diversity, we wanted to share them, one each day. Today is the Adafruit Radio FeatherWing – RFM69HCW 900MHz – RadioFruit!
Add short-hop wireless to your Feather with these RadioFruit Featherwings. These add-ons for any Feather board will let you integrate packetized radio (with the RFM69 radio) or LoRa radio (with the RFM9x’s). These radios are good options for kilometer-range radio, and paired with one of our WiFi, cellular or Bluetooth Feathers, will let you bridge from 433/900 MHz to the Internet or your mobile device.
These radio modules come in four variants (two modulation types and two frequencies) The RFM69’s are easiest to work with, and are well known and understood. The LoRa radios are exciting, longer-range and more powerful but also more expensive.
This is the RFM69 @ 900 MHz version, it can be used for 868 MHz or 915 MHz (the radios use software configured frequency) These are +20dBm FSK packet radios that have a lot of nice extras in them such as encryption and auto-retransmit. They can go at least 500 meters line of sight using simple wire antennas, probably up to 5Km with directional antennas and settings tweakings
Currently tested to work with the Feather ESP8266, Feather 32u4, WICED Feather, Teensy 3 Feather and Feather M0 series, some wiring is required to configure the FeatherWing for the chipset you plan to use.
All radios are sold individually and can only talk to radios of the same part number. E.g. RFM69 900 MHz can only talk to RFM69 900 MHz, LoRa 433 MHz can only talk to LoRa 433, etc.
USEThe Radio FeatherWing Guide provides details and use examples.
Projects
Would you like to see this FeatherWing in action? Check out the project below:
This week, we worked on some hardware and software to dig through more of our massive breakout-board backlog. These are mostly boards we designed in 2021-2023 and then got sidelined by part shortage or babyada.
Most just need firmware driver work, which we’ve used ChatGPT to help with since it’s all very repetitive setter/getter code. We worked on the VCNL4200 and the LPS28 drivers, the first we used OpenAI Canvas. For the second, we tried to use Cursor but had a lot of difficulties since PDF upload is not enabled, and there are no plans to add it.
And on The Great Search: looking for tubing for ported pressure sensor.
Video below:
The Library of Congress shares the possibilities of Latinx futurism and existing examples of representation throughout film and books.
One emerging trend in Latino literature is beginning to show its influence across the big screen. Latinx Futurism, a literary movement with Science Fiction origins and intimately related to Afrofuturism and Indigenous Futurism, is slowly inspiring other visual art and aesthetic mediums. The following essay covers the history and potential influence of Latinx Futurism in cinema.
We’re working on the LPS28 sensor this week. This is a ‘ported’ pressure sensor—you can connect a tube to it so you can measure pressure somewhere else.
But you need the tube! Folks always ask us how to find matching tubing. Let’s look at what is available and how you can connect to a pressure sensor port.
See the chosen tubing on DigiKey.
See the video below: