Best IoT Dev Board?

I’m looking into getting started with my own IoT project — in my case, I’m interested in building a security system which takes a few different inputs into account – potentially including some ML image recognition – before deciding what actions to take including sending alerts, triggering alarms or lights, and similar.

To do all this, I’m going to need some sort of a small development board that will run an OS and offers some connectivity options. GPIO? SPI? RS232?

I have an Intel Neural Compute Stick 2 to help with some of the ML bits if needed. But I know almost nothing. Maybe I should start with a Raspberry Pi or similar and get my sensor interfaces working?

Happy to take suggestions, I have no experience in this area and want to start off in the right direction!

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For Sale? Or, Contributors?

Anyone interested in buying this domain to do something more interesting with it? I don’t really have any content that I’m interested in posting that’s unique to this site these days, everything goes over on the shop blog.

Good name recognition, high listing in search engines, several hundred visitors per day currently. Could be monetized easily, or become a general electronics blog. I’m too busy doing actual work to do a lot of write-ups and content aggregation these days, though.

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Auto-Sync Broke

Hmm. It looks like my blog’s Auto-Sync broke a long time ago, since it seems not to be cross-posting the shop blog entries anymore and hasn’t been for months.

Now that I know there is a problem, I’ll consider doing something about it, but it’s unlikely to be in the next several weeks.

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Bose® Wave Radio AWR1-1W Repair

From the Rain City Audio Repair Blog:

A Bose® Wave Radio, model AWR1-1W, just came through the shop for a repair. The radio had been working okay all these years but had recently stopped receiving any stations and instead was just making a low buzzing noise.

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This radio is a surprisingly serviceable design. Remove 4 screws from the bottom, and it flips open like a clamshell with the speakers and display in the top and mainboard on the bottom.

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It’s a surprisingly serviceable design.

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Four more screws and two clips later, the main power transformer lifts away and the board comes out. Visual inspection showed that most of the small black capacitors had leaked badly down their leads and were very corroded. One rectifier diode was also corroded from a near-by capacitor. The analog circuitry will work for a while with degrading capacitors, but eventually enough fail to prevent normal circuit operation and it all comes apart. Fortunately, it was an easy enough fix.

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Fortunately, a capacitor job was all it needed and it came back to life sounding great!

Posted in Audio, Bose, Electronics | Tagged , , , | 1 Comment

1938 General Electric G-56 Repair

From the Rain City Audio Repair Blog:

Rain City Audio recently had the occasion to work on a 1938 GE radio, the model G-56. Since these are rather large floor model radios, the owner removed the chassis and speaker from the cabinet to bring in for easy transportation.

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This is a straightforward little radio with the AM and Shortwave band, and a row of 6 station presets on the left. It was in all original condition when it came in, although someone had replaced the volume control in the past.

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Underneath, this one got an assortment of new resistors and capacitors, a new volume control, and had an upgraded antenna post and an aux input jack installed.

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Lots of parts came out of this one!

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Works and sounds great!

Posted in Projects, Radio | Tagged , , , , , , | 2 Comments

Important Notice from Rain City Audio

Active Equalizer #111042, received 11/18 with no contact information or paperwork, will be held for 30 days in pending status ending at midnight on December 18th, 2016 before being considered abandoned and disposed.

Posted in Uncategorized | 1 Comment

A Surprise in a Re-Stuffed Capacitor

I was recently re-stuffing some capacitors for a radio. It’s not something I do often, but I’ve accumulated a pile of pulled vintage caps over the years so I have some on hand if a customer requests the most detailed service possible. I found a surprise inside of one!

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Interesting! Someone must have purchased a radio, seen original parts and clipped them out and replaced them, without knowing that someone had re-stuffed the components already. I’ve only found this one with a new cap hiding inside, but we’ll see if any more turn up in a future project.

Posted in DIY, Electronics, Radios and Tubes, Vintage | Tagged , , | 3 Comments