Solar cells, or photovoltaics, are made out of photosensitive semiconductors that convert light energy into electricity in a process known as the photoelectric effect. This process describes the interaction between light energy and the materials that make up the individual cell. Depending on how the cell is configured, conversion efficiencies can exceed 30%!
The solar requirements document can be used by educators to help teach students about solar power. Once completing, the students get a solar badge
We set off to explore the desktop, which includes a web browser and the XBMC open source media player.
We were impressed that this tiny machine could play out an HD movie, but after checking out the first minute or so of Big Buck Bunny, the cartoon that comes loaded on the SD card, we remembered the real function of the
Raspberry Pi, teaching the joys of coding.
There are two programming languages available to try on the Pi: Scratch and Python.
Scratch is designed to introduce younger children to programming, and is already used in a number of primary schools. Isabell found a demo racing car game, and showed me how simple it would be for children to change instructions in the program.
Next, we found the Python folder, aimed at slightly older students.
It came with a selection of games – the idea is you play them, then tinker with the code. We tried one, it froze, we then tried a number of keyboard commands to force it to quit, but nothing happened, so we had to reboot.
Then, after a bit of exploration, Isabell opened a Python window and tried out a line of code.
She typed in ‘print “Hello!”‘, pressed return, and, lo and behold, the computer said “hello” back. One small step for coding…
The Faculty of Information (iSchool) at the University of Toronto seeks to employ a postdoctoral researcher for a funded project in Inclusive Design as part of Project AEGIS. The goal of the AEGIS research project is to radically improve ICT user experience for people with functional limitations, people lacking digital competence, and marginalized older and younger populations.
The Project AEGIS postdoctoral position to be located in the IDI Mobile and Pervasive Computing Cluster at the University of Toronto will focus on the role of ‘participatory material culture’ in serving these needs. Research questions to be addressed may include: How can rapid prototyping and “3-d printing” technologies and smart sensors be used to empower individuals to personalize, customize, and experience their environments in new ways? What is the status of places and objects in a participatory material culture? What tools and interfaces are necessary to open up the possibilities of new ICT for a variety of populations? What are the economically sustainable infrastructure models necessary for supporting participatory material culture?
Hi there, A followup to this mail from a couple months ago. I started with your USBtinyISP design and ended up with this. It’s not recognizably based on your circuit anymore, and it has a few more big features (dual power supply, JTAG programming, USB-TTL serial, rescue clock). But a little bit of the USBtiny’s soul is still
there! You can follow along with the development on my blog: http://www.sowbug.com/
Covernomics has developed our own unique reactive drawing machine, based on a variation of the hanging-pen plotter.
Drawnomic is capable of working in two distinct modes of operation: passive and reactive. In passive mode it simply recreates an existing image.
When in reactive mode Drawnomic can accept instruction and input directly, or indirectly from anywhere in the world via RSS and other data feeds. These instructions and inputs are then combined and interpreted by our unique software, the Drawnomic machine than takes a pen (a physical human tool) and uses it to draw the result.
The blog post is the first in a series of posts that attempts to outline what a modern web development toolchain looks like and how to use the best-of-breed tools for efficient, effective development. Part two will outline how to use to set up your Terminal, zsh, and vim
AvrPhone is a simple mobile phone with a touchscreen. His brain is AVR microcontroller ATmega128 (128 kB flash, 4 kB SRAM) and user interface provides 2.4 “LCD display with touch foil and controller ILI9325B , equipped with 16-bit bus. The communication module provides GSM SIM100S čísnkého manufacturer Simcoe. The whole system is powered by a 3.7 V/1000 mAh Li-Pol cells.
I find an associative system much easier – for a start, you don’t need to go all the way through the mneumonic to get to the last few numbers. I made this for my students: http://imgur.com/WWI9V They learn the code in just a few minutes. Go over it a few times over the next couple of days, and it sticks.
My 10yr old’s #Arduino diorama she did for school while also earning another “Hack Scout” badge we got from @adafruit… This is an Arduino based diorama that my 10yr old wanted to do for her book report on “The Egg Monsters From Mars” for school. While wanting to do a diorama she commented that she wanted to spice it up with lights and moving parts. More then glad to help her earn another Hack Scout badge by assisting her with this project she was able to learn a little something with my assistance & referencing the book “Getting Started with Arduino”. The design, painting, & coding she did her self using the example found in the Arduino library based on the “Sweep” example.
This is the future folks, kids making electronic-dioramas, using open-source hardware.
It’s pretty rare that I come across a free book with so much good information in it, but Analog SEEKrets is definately worth a few days of any budding young engineers time. Written by someone who clearly has enough years experience behind them to know what they’re talking about, this book — freely downloadable in PDF format — contains a lot of excellent real-world information that anyone working in the commercial world will either recognize or appreciate. Some of the practical things I liked in the book were checklists you can give to any new team member, such as the Pre-Supervisor Checklist (p.19) to make sure someone did their homework before pushing problems up the food-chain. (Helpful Hint: If you want to fit in well in any engineering team and get the help you want when you need it, it’s important to make sure you’re not asking questions you could easily have solved yourself, or at least be able to demonstrate that you’ve clearly made some effort first. I wish I would have thought of making a list like this myself working with interns, etc., as they tried to learn the ropes to make sure everyone is getting the most out of the time available in the average working day.)
There’s a lot of excellent information in this book whatever your experience level, and it’s well worth downloading and reading. If you find it valuable, definately consider making a contribution to the author to thank him for making the book freely available online now that it’s no longer in print.
NEW PRODUCT – Adafruit 1.8 18-bit Color TFT Shield w/microSD and Joystick. This lovely little shield is the best way to add a small, colorful and bright display to any project. We took our popular 1.8″ TFT breakout board and remixed it into an Arduino shield complete with microSD card slot and a 5-way joystick navigation switch (with a nice plastic knob)! Since the display uses only 4 pins to communicate and has its own pixel-addressable frame buffer, it can be used easily to add a display & interface without exhausting the memory or pins.
The 1.8″ display has 128×160 color pixels. Unlike the low cost “Nokia 6110″ and similar LCD displays, which are CSTN type and thus have poor color and slow refresh, this display is a true TFT! The TFT driver (ST7735R) can display full 18-bit color (262,144 shades!). And the LCD will always come with the same driver chip so there’s no worries that your code will not work from one to the other.
The shield has the TFT display soldered on (it uses a delicate flex-circuit connector) as well as a ultra-low-dropout 3.3V regulator and a 3/5V level shifter so its safe to use with 5V Arduinos. We also had some space left over so we placed a microSD card holder (so you can easily load full color bitmaps from a FAT16/FAT32 formatted microSD card) and a 5-way navigation switch (left, right, up, down, select). The microSD card is not included, but you can pick one up here.
If you just want to display text, shapes, lines, pixels, etc the shield uses pins 13, 11, 10 and 8. If you’d like to add the navigation switch, it uses Analog 3 (all 5 switches are connected using a clever resistor trick to permit all the switches to share one analog pin). For the microSD card, you’ll also give up Digital 12 and 4.
Comes as a fully assembled and tested shield with the display, microsd card holder and nav switch with knob as well as a stick of 0.1″ header. To finish up and use, you will need to solder on the header onto the shield PCB, a quick 10 minute task.
The Tribeca Film Festival, in association with renowned Harvard Business School Professor Clay Christensen and the Disruptor Foundation, is proud to announce the recipients of the third annualTribeca Disruptive Innovation Awards, hosted by NYU Stern School of Business, on April 27.
Pettis is receiving the Tribeca Disruptive Innovation Award for MakerBot’s work creating an entire ecosystem for 3D printing, including a cutting-edge consumer brand, and a flourishing open source design community on Thingiverse.com.
Announcing the Adafruit Prototyping Pi Plate Kit for Raspberry Pi! Now that you’ve finally got your hands on a Raspberry Pi, you’re probably itching to make some fun embedded computer projects with it. What you need is an add on prototyping Pi Plate from Adafruit, which can snap onto the Pi PCB (and is removable later if you wish) and gives you all sorts of prototyping goodness to make building on top of the Pi super easy.
We added lots of basic but essential goodies. First up, there’s a big prototyping area, half of which is ‘breadboard’ style and half of which is ‘perfboard’ style so you can wire up DIP chips, sensors, and the like. Along the edges of the proto area, all the GPIO/I2C/SPI and power pins are broken out to 0.1″ stips so you can easily connect to them. On the edges of the prototyping area, all of the pins are also connected to 3.5mm screw-terminal blocks. This makes it easy to semi-permanently wire in sensors, LEDs, etc. Finally, we had a little space remaining over the metal connectors so we put in an SOIC surface mount chip breakout area, for those chips that dont come in DIP format.
The nice thing about this plate is we’re getting custom header breakouts that are taller than usual, so that the proto plate sits above the metal connectors, out of the way and allows for plenty of workspace. We’ll have stackable header kits as well for those who want to put multiple plates on top.
What is the Raspberry Pi? A low-cost ARM GNU/Linux box.
The Raspberry Pi is a single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of stimulating the teaching of basic computer science in schools. The design is based on a Broadcom BCM2835 system on a chip (SoC), which includes an ARM1176JZF-S 700 MHz processor, VideoCore IV GPU, and 256 megabytes of RAM. The design does not include a built-in hard disk or solid-state drive, instead relying on an SD card for booting and long-term storage. The Foundation plans to support Fedora Linux as the initial system software package/distribution, with support for Debian and Arch Linux as well – Wikipedia.
*Please note, this is the sign up page for the Adafruit Prototyping Pi Plate Kit for Raspberry Pi, we are currently testing this product with the shipping Raspberry Pi and will release it once it’s ready! We have not set the pricing or ETA yet. We’ve also asked to become a Raspberry Pi distributor if and when they’re ready to do that.
In its time at Google, SketchUp has become one of the most popular 3D modeling tools in the world. With over 30 million SketchUp activations in just the last year, we’re awfully proud of our accomplishments. But there’s still so much we want to do, and we think we’ve found a way forward that will benefit everyone—our product, our team and especially our millions of users.
That’s why I’m sharing today that the SketchUp team and technology will be leaving Google to join Trimble.