I’m continuing working with Juan Brito and Danny Macancela from the blog Desafio Ecuador, developing new boards to bring near the technology and programming languages. Our last work is a board to use with the Raspberry Pi and focused to learn Python. The board has the basic elements to start with this language. Also, with the develop of the PCB we remove the wiring, avoiding troubles with connections, inversion polarity…So with this board you only focused in the software develop, because the hardware side will work!
A lot of people have been (usually unfavorably) comparing the Edison to single board computers like the Raspberry Pi. Let’s do a little A:B comparison, shall we?
The Edison is not a Raspberry Pi - [Link]
RPi Board, a board to learn Python with the Raspberry Pi - [Link]
Freq Show: Raspberry Pi RTL-SDR Scanner is a new guide in the adafruit learning system:
Have you ever wondered what’s in the radio waves zipping invisibly around you every day? Software-defined radio (SDR) is a great tool to explore radio signals using a computer and inexpensive radio tuner. With SDR you can examime many radio signals such as FM radio,television, emergency & weather radio, citizen band (CB), and much more.
Although dedicated SDR hardware like the HackRF allow you to tune an immense range of the radio spectrum, you can easily get started with SDR using a Raspberry Pi and inexpensive RTL-SDR tuner. Inspired by the HackRF PortaPack, this project will show you how to build a small portable SDR scanner using a Raspberry Pi, PiTFT, and RTL-SDR radio dongle. With the Raspberry Pi Freq Show RTL-SDR scanner you can visualize the invisible world of radio!
Freq Show: Raspberry Pi RTL-SDR Scanner - [Link]
The Juice4Halt module is a supercapacitor based energy storage. It contains two independent DC/DC converters. The first one is a bidirectional step-up/step-down converter working as the interface between the stable 5V supply rail and the supercapacitor. During charging the converter works in step-down mode and transports energy from the external power supply to the supercapacitor. In case of a power failure the load device (Raspberry Pi or another SBC) is supplied from the supercapacitor via DC/DC converter working in step-up mode.
The second DC/DC converter is a Front-end step-down converter. The only function is converting a high input voltage down to 5.1V for the 5V rail. It is necessary to use the Front-end converter in case of an external power supply.
The Batteryless UPS for the Raspberry Pi - [Link]
RaspWristRadio – Wearable Personal FM Radio Station - [Link]
by Suzanne Deffree @ edn.com
Arduino and Raspberry Pi are great, well-utilized DIY boards for hacking just about anything you want to design. But if you’re looking for an alternate hacker board, here are seven that Steve Nelson, Freescale’s director of ecosystem and marketing programs, presented at this week’s Designers of Things (DoT) conference.
With some starting below the $20 mark, these Freescale-enabled, alternative hacker boards are community-supported and allow the transition to low-cost commercial volume manufacturing while still being compatible and easy-to-use, according to Nelson.
7 alternative hacker boards - [Link]
The Wireless Inventors Kit for the Raspberry Pi (RasWIK) is an exciting and affordable addition to the Raspberry Pi. RasWIK demonstrates that with our leading edge technology anyone (and we mean anyone) can build wireless sensors and actuators , you do not need huge experience, a degree or even any tools. We show you even how to connect the devices you build to “the Internet of Things” (IoT) service providers such as Xively.
Getting started is just 5 simple steps:
1. Insert the preconfigured SD card to your Pi
2. Plug in the Slice of Radio to the GPIO connector
3. Turn on the Pi
4. Power the XinoRF development board
5. Lauch the Python based example application on your Pi
Thats it!……..you are now past step one of your journey to wireless nirvana
RasWIK – Raspberry Pi Wireless Inventors Kit - [Link]
By Dave LeClair @ gizmag.com
For tinkerers and people who love programming complicated projects, devices like the Raspberry Pi and Arduino are amazing, but for those without technical knowledge, they can be a terrifying proposition. A new device called Verve 2 aims to bring the functionality of these devices to the masses without the need for programming skills.
The crux of a lot of cool projects you see developed using Arduino is the device itself, along with some connected sensors. From there, someone with electronics and programming knowledge writes the code that tells the system what to do when the sensors detect something. The general idea for Verve 2 is the same, except it doesn’t require the programming step.
Verve 2 is like Arduino for people without programming skills - [Link]
by drcurzon @ instructables.com:
This is my first Instructable so all criticisms and comments are welcome.
This will show you how to set up a simple wired web server on your Raspberry Pi, with PHP and MySql.
The Raspberry Pi is a good choice for a webserver that will not recieve too much traffic, such as a testing server, or small intranet, as it doesn;t get too hot (so is nice and quiet), and only uses around 5 Watts of power (costing £3.50 a year where I am if it’s running 24/7)
Raspberry Pi Web Server - [Link]
Arduino has its shields, the Beaglebone Black its capes and up until recently the Raspberry Pi just had expansion boards. The latest B+ version of the Pi comes with more I/Os increasing the pin count to 40 of which 26 are backward compatible with the original connector fitted to the A and B boards. Two of the extra pins ID_SC and ID_SD are data and clock lines to connect to a serial EPROM fitted to the expansion board, sorry HAT. The EEPROM holds the board manufacturer information, GPIO setup and a thing called a ‘device tree’ fragment – basically a description of the attached hardware that allows Linux to automatically load the appropriate driver.
HATs On for the Raspberry Pi - [Link]