Raspberry Pi DAC+ (formerly known as IQaudio DAC+) is a high-performance audio HAT designed for any Raspberry Pi with a 40-pin GPIO header. Equipped with the Texas Instruments PCM5122 DAC, it delivers crystal-clear stereo analogue audio through a pair of phono (RCA) connectors.
No external power is needed – the DAC+ connects directly to the Raspberry Pi’s GPIO header without requiring soldering or cables.
Features
Power LED
Analogue audio out (0-2 V RMS) via panel-mounted stereo
phono (RCA) sockets with MUTE signal (headphone detect)
Dedicated headphone amplifier, output via 3.5 mm panel-mounted barrel socket
40-pin pass-through GPIO header
HAT EEPROM write-enabled
Downloads
Datasheet
The Raspberry Pi Bumper is a snap-on silicone cover that protects the bottom and edges of the Raspberry Pi 5.
Features
One-piece flexible silicone rubber bumper
Enables easy access to the power button
Mounting holes remain accessible underneath the bumper
Downloads
Datasheet
Specifications
RP2040 microcontroller chip designed by Raspberry Pi in the UK
Dual-core ARM Cortex M0+ processor, with a flexible clock running up to 133 MHz
264 kB SRAM, and 2 MB on-board Flash memory
Castellated module allows soldering directly to carrier boards
USB 1.1 host and device support
Energy-efficient sleep and dormant modes
Drag and drop programming using mass storage via USB
26x multifunction GPIO pins
2x SPI, 2x I²C, 2x UART, 3x 12-bit ADC, 16x controllable PWM channels
On-chip accurate clock and timer
Temperature sensor
On-chip accelerated floating point libraries
8x programmable IO (PIO) state machines for custom peripherals
Why a Raspberry Pi Pico?
Designing your own microcontroller instead of buying an existing one brings a number of advantages. According to Raspberry Pi itself, not one of the existing products available for this comes close to their price/performance ratio.
This Raspberry Pi Pico has also given Raspberry Pi the ability to add some innovative and powerful features of their own. These features are not available anywhere else.
A third reason is that the Raspberry Pi Pico has given Raspberry Pi the ability to create powerful software around the product. Surrounding this software stack is an extensive documentation set. The software and documentation meet the high standard of Raspberry Pi's core products (such as the Raspberry Pi 400, Pi 4 Model B and Pi 3 Model A+).
Who is this microcontroller for?
The Raspberry Pi Pico is suitable for both advanced and novice users. From controlling a display to controlling many different devices that you use every day. Automating everyday operations is made possible by this technology.
Beginner users
The Raspberry Pi Pico is programmable in the C and MicroPython languages and is customizable for a wide range of devices. In addition, the Pico is as easy to use as dragging and dropping files. This makes this microcontroller ideally suited for the novice user.
Advanced users
For advanced users, it is possible to take advantage of the Pico's extensive peripherals. The peripherals include the SPI, I²C, and eight programmable I/O (PIO)-state machines.
What makes the Raspberry Pi Pico unique?
What's unique about the Pico is that it was developed by Raspberry Pi itself. The RP2040 features a dual-core Arm Cortex-M0+ processor with 264 KB of internal RAM and support for up to 16 MB of off-chip Flash.
The Raspberry Pi Pico is unique for several reasons:
The product has the highest price/quality ratio in the microcontroller board market.
The Raspberry Pi Pico has been developed by Raspberry Pi itself.
The software stack surrounding this product is of high quality and comes paired with a comprehensive documentation set.
The Raspberry Pi SSD Kit bundles a Raspberry Pi M.2 HAT+ with a Raspberry Pi NVMe SSD. It unlocks outstanding performance for I/O intensive applications on Raspberry Pi 5, including super-fast startup when booting from SSD.
The Raspberry Pi SSD Kit is also available with 512 GB capacity.
Features
40k IOPS (4 kB random reads)
70k IOPS (4 kB random writes)
Conforms to the Raspberry Pi HAT+ specification
Included
256 GB NVMe SSD
M.2 HAT+ for Raspberry Pi 5
16 mm GPIO stacking header
Mounting hardware kit (spacers, screws)
Downloads
Datasheet
The case consists of two parts. It has a standard base featuring a cut-out to allow access to the GPIO, and a choice of three lids: a plain lid, a GPIO lid (allowing access to the GPIO from above), and a camera lid (which, when used with the short camera cable supplied, allows the Raspberry Pi Camera or Camera Noir to be fitted neatly inside it).
Included
1x base
3x lids (plain, GPIO, camera)
1x short camera cable
4x rubber feet
Multitasking and multiprocessing have become a very important topic in microcontroller-based systems, namely in complex commercial, domestic, and industrial automation applications. As the complexity of projects grows, more functionalities are demanded from the projects. Such projects require the use of multiple inter-related tasks running on the same system and sharing the available resources, such as the CPU, memory, and input-output ports. As a result of this, the importance of multitasking operations in microcontroller-based applications has grown steadily over the last few years. Many complex automation projects now make use of some form of a multitasking kernel.
This book is project-based and its main aim is to teach the basic features of multitasking using the Python 3 programming language on Raspberry Pi. Many fully tested projects are provided in the book using the multitasking modules of Python. Each project is described fully and in detail. Complete program listings are given for each project. Readers should be able to use the projects as they are, or modify them to suit their own needs.
The following Python multitasking modules have been described and used in the projects:
Fork
Thread
Threading
Subprocess
Multiprocessing
The book includes simple multitasking projects such as independently controlling multiple LEDs, to more complex multitasking projects such as on/off temperature control, traffic lights control, 2-digit, and 4-digit 7-segment LED event counter, reaction timer, stepper motor control, keypad based projects, car park controller, and many more. The fundamental multitasking concepts such as process synchronization, process communication, and memory sharing techniques have been described in projects concerning event flags, queues, semaphores, values, and so on.
The Raspberry Pi SSD Kit bundles a Raspberry Pi M.2 HAT+ with a Raspberry Pi NVMe SSD. It unlocks outstanding performance for I/O intensive applications on Raspberry Pi 5, including super-fast startup when booting from SSD.
The Raspberry Pi SSD Kit is also available with 256 GB capacity.
Features
50k IOPS (4 kB random reads)
90k IOPS (4 kB random writes)
Conforms to the Raspberry Pi HAT+ specification
Included
512 GB NVMe SSD
M.2 HAT+ for Raspberry Pi 5
16 mm GPIO stacking header
Mounting hardware kit (spacers, screws)
Downloads
Datasheet
When you experiment with the Raspberry Pi on a regular basis and you connect a variety of external hardware to the GPIO port via the header you may well have caused some damage in the past. The Elektor Raspberry Pi Buffer Board is there to prevent this! The board is compatible with Raspberry Pi Zero, Zero 2 (W), 3, 4, 5, 400 and 500.
All 26 GPIOs are buffered with bi-directional voltage translators to protect the Raspberry Pi when experimenting with new circuits. The PCB is intended to be inserted in the back of Raspberry Pi 400/500. The connector to connect to the Raspberry Pi is a right angled 40-way receptacle (2x20). The PCB is only a fraction wider. A 40-way flat cable with appropriate 2x20 headers can be connected to the buffer output header to experiment for instance with a circuit on a breadboard or PCB.
The circuit uses 4x TXS0108E ICs by Texas Instruments. The PCB can also be put upright on a Raspberry Pi.
Downloads
Schematics
Layout
Unlike other Raspberry Pi boards, the Raspberry Pi Pico does not have a built-in video output. However, thanks to programmable IO (PIO) and this Pico DVI Sock, it is possible to add a DVI video output to the Raspberry Pi Pico!
The Pico DVI Sock was developed by Luke Wren, a Raspberry Pi engineer, in his spare time. He has published the design online under a CC0 license, so everybody can build the hardware from his provided files.
The physical video interface of the Pico DVI Sock is an HDMI connector, but it outputs a DVI signal. Historically, HDMI is a successor to DVI – so DVI signals can be simply transmitted using HDMI. Simple passive adapters allow you to connect HDMI cables to a DVI port.
The DVI Sock can be soldered to one end of the Raspberry Pi Pico. Thanks to the castellated edges of the Pico, soldering is very easy. Let your creativity run wild with an additional digital video output on the Pico.
Here are some suggestions / possible project ideas:
Mini game console based on the Raspberry Pi Pico
Output of measurement values on a monitor
The active cooler provides an alternative cooling solution for users who wish to use their Raspberry Pi 5 under sustained heavy load without a case. It combines a large metal heatsink with a variable-speed blower, again powered and controlled via the fan connector, and attaches to the Raspberry Pi 5 via sprung pins into a pair of mounting holes.
Can you use the SparkFun Top pHAT to prototype machine learning on your Raspberry Pi 4, NVIDIA Jetson, Google Coral or another single-board computer? Indubitably! The SparkFun Top pHAT supports machine learning interactions, including voice control with onboard microphones & speaker, graphical display for camera control feedback, and uninhibited access to the RPi camera connector. Additionally, you can use the programmable buttons, joystick, and RGB LED for user-defined I/O, dynamic system interaction, or system status displays.
Can you use it as an interface to introduce your project to the SparkFun Qwiic ecosystem? Indeed! In addition to all the previous features, we have also included a Qwiic connector to allow easy integration over I²C. Billions of combinations of Qwiic-enabled boards are available to you to expand upon the capabilities of the SparkFun Top pHAT.
With all the I/O interaction on this board and the lack of soldering needed to get up and running, the SparkFun Top pHAT is the fundamental machine learning add-on for Raspberry Pi or any 2x20 GPIO SBC!
Features
A Raspberry Pi pHAT that focuses on user interaction with an SBC/RPi.
Support for machine learning interactions
Voice control (microphones, speaker)
Graphical display on 2.4' colour TFT
Two Programmable buttons for user-defined I/O
Programmable Joystick – for dynamic/interaction with the system (GUI menus, robot driving).
Programmable RGB LEDs – for system status, display.
Does not inhibit access to RPi camera or display connector
On/Off switch for RPi.
Supports access to the SparkFun Qwiic ecosystem
Intended to be at the top of a pHAT stack - no pins for stacking on top of this board. It’s the Top pHAT!
