Wednesday, November 10, 2010
Picking a Kite
I can't decide yet -- I'm used to parafoil kites, and they seem like a good stable platform. But the easy deployment of a box kite is appealing as well. Or do I go old skool and just get a diamond kite. I think I'll go with a light-weight line -- I don't expect to be in high-wind, and I think it'll save weight. Parafoil, box, or diamond .. what's your vote?
Tuesday, November 9, 2010
Ordering Parts for an Arduino-Based KAP Rig
I've wanted to do Kite Aerial Photography (KAP) for some time, but it seemed a little daunting. But now that I've got some Arduino experience under my belt, it actually seems quite simple! So I've got a cheap-o little digital camera from the drug store, here. And my friend Sven just checked my parts list for the bits that'll let an Arduino short the shutter button to snap photos:
- D1 is a 1N4004 ($0.99)
- R1 is just a 1K ohm resistor ($0.99)
- Q1 is a 2N2222 ($0.55)
- K1 is this relay from SparkFun ($1.95)
Wednesday, November 3, 2010
Manually Creating MacOS Time Machine Targets
You can convince MacOS' Time Machine to backup to just about any volume, local or network, as long as you prepare it with a specially-named "sparsebundle" file in the top of the volume you want to backup to. Here's an example of how I get Time Machine to backup to my NAS appliance. Here's my setup:
hdiutil create -fs HFS+J -volname "Backup of `hostname -s`" `hostname`_`ifconfig en0 | grep ether | awk '{print $2}' | sed s/://g`.sparsebundle
hdiutil create -size 420g -fs HFS+J -volname "Backup of `hostname -s`" `hostname`_`ifconfig en0 | grep ether | awk '{print $2}' | sed s/://g`.sparsebundle
- My computer is named "neap"
- My NAS appliance is named "spring"
- My NAS appliance has a CIFS shared volume called "backups"
hdiutil create -fs HFS+J -volname "Backup of `hostname -s`" `hostname`_`ifconfig en0 | grep ether | awk '{print $2}' | sed s/://g`.sparsebundle
Or if you would like to define an upper limit to how much space this Time Machine target can occupy total, add a "-size" argument, like this:
hdiutil create -size 420g -fs HFS+J -volname "Backup of `hostname -s`" `hostname`_`ifconfig en0 | grep ether | awk '{print $2}' | sed s/://g`.sparsebundle
Kewl, now mount your target NAS volume.
- In the Finder I choose "Connect to Server..." from the "Go" menu.
- I enter "smb://spring/" since "spring" is the name of my NAS file server.
- Click connect, and when prompted I supply my connection credentials.
- From the list of available volumes on "spring" I select "backups" and click OK.
mv *.sparsebundle /Volumes/backups/
And at this point, I can run Time Machine as usual, and tell it to backup to the network volume. I do this:
- From the Apple menu, I select "System Preferences"
- Click the "Time Machine" icon.
- Click "Select Disk"
- It should list the NAS volume, in my case it's "backups" on "Backup to spring"
- I click the volume name once, then click the "Use for Backup" button.
- I supply my username and password, so that Time Machine can reconnect in the future.
- After that, Time Machine switches to "On" and starts counting down to the next backup.
Monday, November 1, 2010
My Diagram 17
It has come to my attention that my diagram of career and washed-up dreamerness wasn't entirely legible. So, I took the photo and traced it in OmniGraffle on my iPad. Here's one that's totally readable, at least if you click to zoom in.Some things I notice: "user evangelist" and "tech evangelist" are adjacent, and point at each other. Also, I've specifically made "new tech discoverer" its own bubble -- it's one of my favorite things to do, along with sharing my discoveries. The "architect" and "data miner" bubbles don't really tickle me the way they did when I first drew this; dunno why. "Teacher" is at an interesting intersection.
Reading my own mind-maps is kinda like throwing tarot cards. I just talk bullshit until the customer starts nodding their head.
The blocks in the lower left are prerequisites, of a sort. My dream job/life/whatnot involves either a "volcano lair," or some sort of intellectual "salon." Actually, this is probably why hackerspaces appeal to me. (See also: 'fricken lasers.')
Finally, I'm not sure of the purpose of the "monkey line" in the bottom right, other than to delineate between things that are helpful and unhelpful. And of course, they're likely to turn out to be just a "pot" that calls the "kettle" black.
Please be careful; the monkeys bite.
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