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Bring on the H-Bridge. As an act of desperation I remembered that the H-bridge I built could generate AC. Unfortunately it had about a million things wrong with it.
Who needs the iWatch? Made with a Raspberry Pi Model B and TFT touchscreen. The wire goes down my sleeve to a battery that powers it
Mathematician's may see the Pi π in the mesquite bean pod!
Lagrandstudios.com
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NYC: MoMath / Pi Doors
MoMath: Twin Pi doors on the National Museum of Mathematics
Leica M10 | Leica Elmar-M 3.8/24 ASPH
16 / 365 I think Pi is more worried for me than she is for Brown, HE knows what to do. Be cute, get love, eat nice naughty food. I'm the one who worries.
With the new Raspberry Pi 3 Model B+, you can natively boot off a USB drive (you can do this with earlier models, too, but there is some finagling involved). So I picked up a SanDisk Cruzer Fit and copied NOOBS onto it and gave it a go. Booted right up. It's supposed to be faster than using the microSD card, but I didn't notice anything like that.
As a long-time Windows user, it's kind of fun and refreshing to play with a system where the hardware and software are strictly separate. By using a different boot volume, I basically have a different computer. I anticipate getting multiple Pis for various projects and tests, but in the short term I can simply set up different boot volumes (on whatever media I prefer). So now when I boot off the microSD card my Pi is called "RAZORBACK," and when I boot off this USB drive the Pi is called "WHITNEY."
I've already come up with a list of hostnames for future Pis, as well as their respective desktop wallpapers. This way if I ever have, say, a benchfull of Pis, I can tell at a glance which Pi I'm looking at. I uploaded the wallpapers here so that when I boot up a new Pi all I have to do is go online and download the appropriate wallpaper.
As you can see I also fitted the Pi Camera Module to my Pi. I just wanted to experiment with controlling the camera. Frankly, it's a lousy camera, and fragile as hell; the best thing about it is it doesn't need any more power (it's powered by the Pi). But you can use it to experiment and write programs. Any serious camera work will probably be handled by a USB camera (that will require a powered USB hub). You can also use the Pi to control many DSLR cameras.
Our dog from fifteenish hears ago. He was born with the symbol π in his fur. Born around 1978. Died of skin cancer and/or old age.
When I asked my dad when the photo was probably from, he tried going by the shirt he's wearing in it. 'That's an old shirt...' Yes, dad. Pi died fifteen years ago.
Raising like a cobra, the Raspberry Pi Camera (no, its not moving) is added to the Pi's circuit board and controllable from an API of your favorite programming language. I tried both Javascript and Python, the former a bit more cumbersome due to its asynchronous nature. You could easily say I have geeked-out completely this christmas with my Raspberry Pi unit. Had to freshen up my understandings of basic electrics/electronics as well.
This holiday I became a frequent customer at Kjell&Company.
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With this setup you trigger the camera with the red button on the white pinboard in the bottom of the picture. It works by reading one of the general pins on the Pi as input and when the button is pressed the signal is instead grounded. In the code I recognize the signal loss and interpret it as a button press, and then trigger the camera via the API. There are better setups that doesn't need to have an 3.3V current on but triggers on an active signal instead, the reversed way so to say.
Today AshMashMash remembered me with his great photo that today is the Pi day (14-3) :) I've tried to do this photo with the 160 digits I know, but I write so bad that I give up lol.
1 Photo with bulb mode.