That new Raspberry Pi computer you just got has a row of 2×20 pin headers soldered on – those are the GPIO (general purpose input/output) pins and for those of us who like to hack electronics they are where the real fun is. By programming the Pi, you can twiddle those pins high or low, send and receive I2C and SPI data, and access the 3V and 5V power rails.
If you want to bridge those contacts out onto another PCB, you'll want this cable! It's 20cm long and has 40 socket & wire sets.
The Raspberry Pi Sense HAT is attached on top of the Raspberry Pi via the 40 GPIO pins. The Sense HAT has an integrated Gyroscope, Accelerometer, Magnetometer, Barometer, Temperature Sensor, Humidity Sensor, 5-button joystick and 8×8 LED matrix display that can be used for many different types of experiments, applications, and even games.
The PiFace Digital 2 add-on board for Raspberry Pi Model B+ connects to the Pi to the world around it. The PiFace Digital 2 includes 2 relays, 4 tactile switches, 8 digital inputs, 8 LED Indicators, a graphical emulator and support for hardware interrupts.
Extra-long and bendy, this is just like your classic Pi GPIO cable but 12″ (300mm) long and fitted through a tube so that it’s a little more flexible in all directions.
Please note: These cables come with strain-relief clips that make the connector a bit taller than ‘classic’ GPIO cables. If you want to fit the cable into a Pi enclosure you may need to remove the top clips by cutting them off gently with diagonal cutters/nippers and pulling the plastic off.
The PIFACE IO Shim works with the Raspberry Pi 2 and Raspberry Pi B+ with 40 GPIOs to duplicate the header pins when an add-on board is connected directly to the Raspberry Pi GPIO. The SHIM has two sets of plated thru holes in the same RPI GPIO configuration with the relative holes connected together. With one set of holes placed over the Raspberry Pi headers the other set of holes on the SHIM can accommodate header pins, wires, etc. to support the users application while not covering up the RPI header pins for additional add on boards.
The PiMoroni Unicorn Hat is an 8×8 array of super-bright LEDs. It is ideal for mood-lighting, 8×8 pixel art, persistence of vision effects, status indications, or just blasting colour into your surroundings. It is compatible with Raspberry Pi 2, B+, and A+, has a Python API and plugs straight onto the GPIO pins.
At the highest level, FPGAs are reprogrammable silicon chips. Using prebuilt logic blocks and programmable routing resources, you can configure these chips to implement custom hardware functionality without ever having to pick up a breadboard or soldering iron. FPGAs have gone from being simple glue logic chips to actually replacing custom application-specific integrated circuits (ASICs) and processors for signal processing and control applications. The LOGi-Pi is a FPGA platform for your Raspberry Pi. The LOGi Ecosystem of FPGA hardware, software, drivers and applications mitigates the sharp learning curve associated with FPGA development while unifying existing hardware interfaces and platforms. FPGA (Field Programmable Gate Array) development is an invaluable technology that allows a single board/device to morph in functionality to fit the needs of changing environments and application requirements.