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westfw

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29Instructables3,713,040Views2,870CommentsSF Bay area
Middle aged geek username also works at yahoo.com, mac.com, comcast.net, wharton-10.arpa

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  • How to Videotape the School Play or Concert

    To tell the truth, I haven't paid much attention to the tech since my kids went off to colleges. Modern video cameras are absurdly good compare to what used to be available (I think all the videos in this instructable are pre-HD, for instance.)Things to look for:support for an external power supply, interchangeable betters, and/or decent battery life. This could eliminate many phones, despite reasonable camera quality.Support for a tripod.Good microphone and/or support for an external mic.Compatibilty with editing software. This instructable was done with early iMovie, which I liked, but hasn't existed for some years :-( Dealing with HD clips is resource-intensive and potentially much slower than pre-HD video. Encoding onto DVD or equiv can take several hours per hour of screen-time,…

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    To tell the truth, I haven't paid much attention to the tech since my kids went off to colleges. Modern video cameras are absurdly good compare to what used to be available (I think all the videos in this instructable are pre-HD, for instance.)Things to look for:support for an external power supply, interchangeable betters, and/or decent battery life. This could eliminate many phones, despite reasonable camera quality.Support for a tripod.Good microphone and/or support for an external mic.Compatibilty with editing software. This instructable was done with early iMovie, which I liked, but hasn't existed for some years :-( Dealing with HD clips is resource-intensive and potentially much slower than pre-HD video. Encoding onto DVD or equiv can take several hours per hour of screen-time, even on a zippy desktop.

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  • How to Make Bavarian Pretzels in Four Easy Steps

    Is there a "let rise" step missing?

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  • I'm glad you found it helpful. Part of the idea was to try to discourage people from trying to use "all the special features" of their cameras; all too often, they backfire instead of being useful. Sure, if you have the luxury of doing multiple "takes", you can try lots of experiments. But it you just need to record the thing happening ONE TIME, you're better off being conservative.

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  • There are three pins from the FTDI (+5, GND, and RTS?) connected via PCB traces on the bottom layer of the board, and two (RxD, TxD) that you need to connect with jumper wires because of the limitations of the 1-layer board. The 6th signal (CTS?) is not used...

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  • "Silicone oil" is also available as "toner fuser oil" for photocopiers, and (believe it or not) Spa ani-foam agent (although I suspect the latter is a pretty dilute suspension in (mostly) water.) There's actually a wide variety of viscosities available (depending on the molecular weight of the POLYmer; it might be worth experimenting... (http://www.chemistrystore.com/ has three different viscosities, as long as you buy a gallon at a time!)

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  • In the most recent datasheet (Atmel-42735-8-bit-AVR-Microcontroller-ATmega328-328P_Datasheet.pdf), the terms used are actually "Low Pass Filter" (section 5.2.7) and "LC Network" (section 28.6.2) The schematic 28-9 shows a 10uH inductor.(It's just a nit, of course. Any circuit built on a breadboard is unlikely to need (or benefit from) this degree of attention paid to the Vcca)

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  • A couple of comments:1) re Ferrite bead on Vcca: AVR042 actually recommends the ferrite bead between the system power plane and digital Vcc, and the m328 datasheet recommends an actual inductor between Vcc and Vcca (as well as a separate analog ground plane.) How important these are to the average Arduino-like application is probably subject to debate.2) The circuitry you have on RESET seems overly complex and a bit wrong. the cap, which avr042 says is only needed for especially noisy environments and probably interferes with both AVR debugWire and Arduino auto-reset. The pullup resistor should be at least 10k, in order not to interfere with debugWire (so say AVR042!) (The diode is important, though, and not present in other tutorials afaik. It's lack can cause mysterious problems w…

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    A couple of comments:1) re Ferrite bead on Vcca: AVR042 actually recommends the ferrite bead between the system power plane and digital Vcc, and the m328 datasheet recommends an actual inductor between Vcc and Vcca (as well as a separate analog ground plane.) How important these are to the average Arduino-like application is probably subject to debate.2) The circuitry you have on RESET seems overly complex and a bit wrong. the cap, which avr042 says is only needed for especially noisy environments and probably interferes with both AVR debugWire and Arduino auto-reset. The pullup resistor should be at least 10k, in order not to interfere with debugWire (so say AVR042!) (The diode is important, though, and not present in other tutorials afaik. It's lack can cause mysterious problems with auto-reset.)3) It'd be nice if this included an actual schematic as well as the fritzing diagrams, perhaps with the irrelevant pins removed.

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  • Fixed, even if it is a bit late.

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  • tl;dr: say "yes":See "Step 1" of the next instructable:https://www.instructables.com/Turn-your-EAGLE-schematic-into-a-PCB/

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  • Oohh... I have a T1000 lying around, and I've been wondering if there's anything useful to do with it. Do you have additional information about this project somewhere else?

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  • No, you can have polygons even on a single sided board.There's an example in this instructable, and another here: https://www.instructables.com/Single-Sided-Reall...You do have to watch out for the polygon being "broken apart" by the other traces more than in a multi-layer design.

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  • westfw commented on canida's instructable Carrot Parsnip Beef Soup

    Aren't you supposed to "suck the marrow from the bones", as in assorted classic fiction?

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  • I notice that single element "fog devices" are less than 1/12th the price of the 12-element foggers (indeed - at about $10 each, less than 1/5th the price of the 5-element foggers!) Do you have any idea if twelve of the single-element foggers would be similar in production capability with the 12 element version?

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