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#electronics

31 posts22 participants2 posts today

Okay, gave up on the solar supply houses 🙄 and just went and bought strut from a local hardware store for mounting my solar panels on the other shed. Went to Lowe's (to avoid the higher odds of ICE at Home Depot) and at a late hour (unlikely hour for a raid, no day laborers or contractors around). Now to un-mount the other old panels on that shed, mount the new rails, anchor the panels and rewire everything. (not this weekend, probably, ham radio Field Day, although I did not sign up to run anything...). #random #electronics #projects

890Wh production, up from only 140Wh (both with 500W worth of capacity, but the original set of panels 25+ years old. "New" panels are about 10 years old, maybe not used even that much.) Surprised to see the difference due to aging. This is not full possible production from the panels, the load was only 80W plus Lead Acid recharge. #solar #electronics

🚨 Website Update!
I've just updated my dedicated website for the hardware I produce for the RC2014.

Now listed are the ZX-RC Bus Interfaces I released in 2022 for connecting RC peripherals to the ZX Spectrum. (Allows 2 RC peripherals to connect, with optional ZX Through Port).

Likewise, the SAM-RC Bus Interfaces (first released in 2019) to connect RC peripherals to the SAM Coupe are also added, available in 2 or 4 port versions.

For all the info, videos showing a selection of RC peripherals working with the two home computers, and to order please see the page at:
2014.samcoupe.com

Hmm, definitely now have more panels than power consumption on the shed. But maybe not enough battery for a lot more overnight load. Need a daytime only optional load... maybe run the new pond filter on this while the sun is shining. #electronics #solar

We still have slots left for our free DIY Book Lamp workshop tomorrow (at SLB Potsdam, Germany)!

We will use RGB LEDs to make our Book Lamps change color. Plus, we will try my new magnetic switch (see last post) and upcylce old books.
Please #retoot if you have some reach in Potsdam/Berlin.

Here is the link to the registration page: bibliothek.potsdam.de/de/veran

Workshop is organised by @medienwerkstatt and part of @digitaltag

Hmm, the $60 worth of solar panels on this shed was most certainly worth it! Almost worth putting more stuff in here to run off the free electrons. Or, I can boot the old Mac running Linux I have in here, LOL. (Why do I have a Mac next to a table saw 🤔) #electronics

Well, be careful what you wish for I guess. I asked TI Webbench for an ultra efficient 3v3 buck converter and it recommended an inductor that is 13mm x 13mm and a FULL CENTIMETER TALL. Chonky doesn't even describe this thing, it's paperweight all by itself. They don't specify weight but its a cubic centimeter of copper and ferrite, so I'm guessing it's heavy AF.

😲 😳 😣

digikey.com/en/products/detail

Hi, Fedi hive mind. My film developing machine is giving me trouble. The buttons to change the settings have stopped working. It seems they are not making contact or something? I know nothing about electronics, but Google suggests cleaning the contacts with wd40 contact spray. Is Google right you think? This is how the control panel looks on the inside. I can click the little black buttons, but nothing happens. I'm guessing it's built up dirt.
#MakersHour #askFedi #electronics

For those of you not knee-deep into ham radio, SSTV is an analog mode of transmission for sending still images via radio. To the ear it sounds like you'd expect if someone quickly scanned the lines of an image and varied the transmitted tone with brightness. The resolution of the mode we chose is rather low because we wanted to transmit in short time intervals (taking the picture, converting and transmitting it takes ~3 minutes) to get more opportunities for people to receive them.

scicomm.xyz/@Quantensalat/1147

#hamradio
#electronics
#physicsedu

A group of people launching a weather balloon into the blue sky on a green field
A community for scientists and science communicators.Alexander Knochel (@Quantensalat@scicomm.xyz)Attached: 1 image Student built SSTV Balloon Experiment on Wednesday June 25 - further information: Tune in SSTV Martin1 434850 FM for exciting live images from the stratosphere - if the system works :) We will start between 12:00-14:00 CEST, probably closer to 14, but you never know... Flight time: 3:15h Route: Weinheim -> Würzburg SSTV QRG: 434.850 MHz SSTV Mode: Martin1 Modulation: FM ERP: 1W / 30dBm Call: DF70UKW Email for reports: qsl@facw.org #hamradio #science #scienceedu

I was unhappy with my solar output on this shed, so decided to buy some used, more modern panels. (250W, $30 plus tax for each panel). Racked them up in the same spot on the same hardware. Will see how it does tomorrow. 500W here, there was 500W of panels(100w each) up here before, but I am absolutely sure at least one of them failed. #solar #electronics