Raspberry Pi
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50 minutes in the life of a caterpillar as it transforms to a chrysallis. This isn't quite what I expected: I thought they 'solidified' into the chrysalis, I didn't realize they shed their skin. I should have used a shorter time interval than the 30 seconds used here.
It's a cabbage white caterpillar, which I'm currently plagued with as the neighbouring farmer has planted a field of cabbages next to me.
I used a RaspberryPi Zero 2 with HQ camera for the photography. I'll hopefully get the emergence in a week or so.
Finally got a hold of a raspberry pi zero! Ended up getting it through Pimoroni in the UK, local stock in Australia is scarce and expensive as usual they are the bundles. This will become part of a digital photo frame which will pull photos down from Flickr. Now the wait for the other parts I needed to order on eBay to get this to work! #raspberrypizero #raspberrypi
Raspberry Pi with Oak dust proof case & Logitech diNovo Wireless keyboard and mouse dongle. Still a work in progress.............
I got the acrylic case from ebay some time back. There are similar cases here stores.ebay.co.uk/in-perspex-tive-acrylic-display?_trksid...
The bell jar would work well on a turned base.
My case is 150mm x150mm with scrap Oak from another project cut to fit the case.
I still need to finish off the wooden pcb holder by adding some trim to the front and change out the countersunk screws with round heads.
I will prob add a Raspberry Pi logo as well.
I have some xbee radios from other projects and so I assembled the 'slice of pi' board and used the included xbee sockets. its all 3.3v so it just plugs and plays.
this gets connected to the internal uart, /dev/ttyAMA0. in fact, that's the default bootup console and so, if you connect another xbee to a computer, run a comm-term program (kermit, etc) you can see the bootup console messages across RF. I've been able to get from one end of the house, downstairs, to the upstairs corner. not too bad..
note the 'vga cooler' heatsink (blue) I added to the ethernet NIC chip.
power is via the 2 clip leads and comes from a decent lab supply. at peak, I see a full 1.0 amps being drawn at 5.1v.
oh, and this is the 1ghz overclocked config.
Further adventures in pi-land. This is scraping train times to find the next train from our local station into town, showing any advertised delays. It then shows a green, yellow or red light to indicate whether now is a good time to leave. Green for a short wait at the station, yellow if you'll get there with a couple of minutes to spare, and red if you'll miss it or have a potential long wait.
It's using a custom built "shield" (can you tell from the quality wiring? :-), using a Humble Pi prototyping plate with an LCD, three switches and three LEDs. I'm hoping to use the plate for further projects -- it also works with my earlier internet radio code.
Total cost probably around £45 for Pi, LCD, Humble Pi, USB Wifi adapter and bits and pieces.
Sparkfun ESP8266 Thing Dev Board with BME280 breakout board.
Raspberry Pi 3 with DHT22 tempature and humidity sensor
4 bricks by 8 bricks wide inside, with spidey and Russell Crowe as cable tidies... or is that Kevin Costner?
Over the last few weeks I have been putting together a homemade Trailcam consisting of a Raspberry Pi, a PiCamera, a powerbank, an old plastic box, Bluetac, and software written in Python acquired from 3 or 4 open source programs. This was the first field test(in my garden).
Connecting an Arduino and Raspberry Pi to create a webpage with temperature and humidity measurements.
Raspberry Pi with webcam connected to LilyPad Arduino with ultrasonic rangefinder. If the rangefinder is tripped a picture is taken and sent to cloud. The Raspberry Pi usb ports are both used, so I had to make a wired serial com link between Arduino and Raspberry. The level converter is $1.95 from Sparkfun.
The rangefinder works well with the Lilypad whereas some other variations of the Arduino don't have enough current to operate it consistently.
This one has an adapter that allows me to attach my lensbaby lenses. And a standard tripod screw hole at the bottom.
Laser schematics can be downloaded here: www.thingiverse.com/thing:92105
LEGO Raspberry Pi case: there are many like it, but this is mine. Instructions available as well.
The edges of the card rest between rails formed by 1x2 grille tiles (except in the corner closest to the camera, where the card just rests on top of a "door rail" plate, to provide clearance for the HDMI port to slide past. The grille rails do not interfere with any components on the circuit board.