For mobile and wireless experiments:
- Wifi dongle (best for Occidentalis) - Edimax EW-7811UN Wireless 802.11b/g/n 150Mbps Nano USB Adaptor
- Alternative Wifi dongle - ASUS USB-N10 Wireless Lan USB Adapter
- Battery pack - New Trent iCruiser 11000mAh External Battery Pack
- Powered USB Hub (will also power the Pi) - Belkin F5U701PukBLK USB 2.0 7 Port Mobile Hub
- Sandisk Ultra 30MB/s SDHC Card 8GB
- Microsoft Wired Keyboard 600 - Black
- Connects nicely to the Hub or the supply below - AmazonBasics USB Cable 2.0 A-Male to B-Micro 6 Feet
- 1000mAh USB Power Adapter Mains Charger UK Wall Plug
- If you're computer doesn't have a memory card slot - Memory Card Reader SD MMC Mobile SDHC M2 TF XD CF
Raspberry Pi Pygame UI basics - this tutorial guides you through using pygame to create user interfaces for the PiTFT from Adafruit. It shows how to interact with GPIOs and I2C finishing up with a nice progress bar style widget for an analog input.
Raspberry Pi playing video on 2.2" LCD - The outcome of following a great guide to enable an Adafruit 2.2" LCD as a framebuffer device over SPI.
Raspberry Pi system monitor embedded on your own site - a demonstration of the embedding feature of ControlMyPi which allows you to place your control panel on your own site. This is a simple system monitor showing free ram, load average, core temperature etc.
Raspberry Pi midi driven solenoid bell - Uses a cheap USB/midi cable connected between a Roland TD9 v-drum kit and a Raspberry Pi. The Midi is decoded so whenever the snare drum is hit a GPIO fires to ring the bell using a solenoid. A little bit of fun.
Live Web Bicycle Dashboard using ControlMyPi - A Raspberry Pi using 3G to send GPS and accelerometer data up to ControlMyPi. Users can log in to ControlMyPi and watch the Live data displayed on the dashboard. A second follow up article walks through the Python code: Live Web Bicycle Dashboard - the code.
Control My Pi - Easy web remote control for your Raspberry Pi projects - In just a few lines of Python code you can create a control panel for your project accessible over the Internet. No firewall changes to make, no web servers to set up. Pick up your Raspberry Pi, take it to a friends house or work, school, a club, a coffee shop - connect it to 3G and carry it around or put it in your car - it doesn't matter where it is or what network you're on you'll be able to access your control panel on Control My Pi.
Raspberry Pi solenoid alarm bell - Controlling components on a separate power supply from the Raspberry Pi. This project uses a PIR sensor, an IR range sensor, a solenoid, a reception bell and some bright LEDs to form a proximity alarm system.
Raspberry Pi distance measuring sensor with LCD output - Measure distances from the Sharp GP2Y0A02YK0F sensor using an MCP3008 ADC and hardware SPI. The distance is displayed on the TextStar serial LCD with a bar graph.
Raspberry Pi hardware SPI analog inputs using the MCP3008 - a hardware SPI remake of the bit-banged Adafruit project: "Analog Inputs for Raspberry Pi Using the MCP3008".
Raspberry Pi with TextStar serial LCD display - the perfect companion for the Raspberry Pi. 16x2 and 4 buttons for input, runs right off the 3.3v TTL pins.
Raspberry Pi 7 segment displays - Learn about BCD and simple ICs by driving two seven segment displays from 6 gpio pins.
This project was blogged on the Raspberry Pi web site! Controlling a 7-segment display from half a world away
The results after a few weeks and about 15000 entries: 7 segment display webcam stats
Raspberry Pi GPIO and Motion - take a snapshot from a button push and indicate detected motion and other events on LEDs. Introduces the Python code service to make it easy to flash, switch on/off and single pulse LEDs from the command line and to hook shell commands to button pushes.
Motion Google Drive Uploader and Emailer - Python code to use with Motion to upload your video captures to Google Drive and send you an email.
Battery powered, Wireless, Motion detecting Raspberry Pi - capturing wildlife in the garden for about 12 hours on a single charge.
Raspberry Pi Webcam - streaming video to the Internet from a Sony Playstation Eye Camera (PS3) using ffserver and ffmpeg.