Unofficial site devoted to the Raspberry Pi credit card sized computer offering tutorials, guides, resources,scripts and downloads. We hope to help everyone get the most out of their Pi by providing clear, simple articles on configuring, programming and operating it.
You will also find information about the BerryClip addon boards, the easiest, cheapest way to start experimenting with hardware and software.
Posted in BerryClip
TheBH1750FVI device is a digital light intensity sensor which uses the I2C interface. This allows it to be connected to the Raspberry Pi with only four wires.
The module allows quick and cheap ambient light level measurement and the light level can be read from it as a digital number due to the built in 16-bit analogue-to-digital converter. The device itself is commonly used in mobile phones, LCD TVs and digital cameras.
Piper is a new Raspberry Pi based toolkit aimed at helping young people learn about technology by using Minecraft as a platform to engage kids in problem solving activities. The product has launched on Kickstarter and is proving extremely popular!
There are a number of pledge levels including one which doesn’t include a Pi for $99 but you’ll need to be quick!
SpeedTest.net is an excellent website that lets you measure your internet upload and download speed. It’s useful for checking the performance either for fault finding purposes or to see if you are getting the service promised by your ISP.
Matt Martz has created a Python project called speedtest-cli which allows you to do a basic upload/download measurement using SpeedNet’s infrastructure. It works fine on the Pi and is really easy to try out on the command line.
The Ryanteck Debug Clip is an add-on for the Raspberry Pi that provides a serial interface to another computer via USB. The device pushes onto the Raspberry Pi’s GPIO Header leaving the pins free for other devices and add-on boards.
The product was successfully launched on Kickstarter and easily met its target with days to spare. Ryan sent me a prototype to try out. It’s not quite the same as the final design but close enough.
If you attempt to re-use an SD card you might find the usable capacity is less than you were expecting. This can be due to partitions previously configured and some “format” utilities can’t remove them.
Raspberry Pi SD cards will often only appear to have a capacity of 56MB in windows but that is because it can’t see the much larger Linux partition.
Although much of the Pi world was talking about the Birthday Party over in Cambridge some of us helped keep the fires of creativity burning in far corners of the UK. In my case Bristol. Which isn’t really a corner but you get the idea.
The Digimaker volunteers, At-Bristol, the British Institute for Computing (BCS) and the University of Bristol laid on another great event with plenty of workshops aimed at young children. They got booked up very quickly but I managed to grab a place for my son on the “Beginner & Intermediate (9+) – PiStops: Traffic Light Control with Scratch” session.
PiJuice is a new product being launched on KickStarter on 28th February 2015. It provides a wireless, off-grid power solution to for the Raspberry Pi. It can be used as the basis of a solar powered project or as an un-interruptable power supply. The onboard real-time clock (RTC) allows for intelligent deep sleep and automated wake-up functionality.
The Raspberry Pi is three years old this weekend and has sold over 5 million units making it the most popular British computer ever made. Sales figures are great but what matters is the user base, community and support. Thankfully that has continued to grow steam-rollering many would-be “Pi killers”. The volume of material available for the Pi is staggering and it’s growing every day.
Posted in Events
Just before Christmas I was lucky enough to receive one of the first Pipsta printers. The thermal printer is described by its makers as “a smart little printer that’s full of big ideas” and it gives your Pi the ability to print onto rolls of thermal paper.
Posted in Hardware
The Pi has always supported 1-wire, I2C and SPI interfaces via the GPIO header. These allow various devices to be connected to the Pi and controlled via software. In the recent update to Raspbian some major changes were introduced which changed the way these interfaces are enabled.
The exact details of the change are discussed in the “I2C, SPI, I2S, LIRC, PPS, stopped working? Read this.” forum post over at the official site.
Posted in Hardware
Tagged 1-wire, i2c, SPI