The Raspberry Pi 500 (based on the Raspberry Pi 5) features a quad-core 64-bit Arm processor, RP1 I/O controller, 8 GB RAM, wireless networking, dual-display output, 4K video playback, and a 40-pin GPIO header. It's a powerful, compact all-in-one computer built into a portable keyboard.
The built-in aluminum heatsink provides improved thermal performance, allowing the Raspberry Pi 500 to run quickly and smoothly even under heavy load.
Specifications
SoC
Broadcom BCM2712
CPU
ARM Cortex-A76 (ARM v8) 64-bit
Clock rate
4x 2.4 GHz
GPU
VideoCore VII (800 MHz)
RAM
8 GB LPDDR4X (4267 MHz)
WiFi
IEEE 802.11b/g/n/ac (2.4 GHz/5 GHz)
Bluetooth
Bluetooth 5.0, BLE
Ethernet
Gigabit Ethernet (with PoE+ support)
USB
2x USB-A 3.0 (5 GBit/s)1x USB-A 2.01x USB-C (for power supply)
PCI Express
1x PCIe 2.0
GPIO
Standard 40-pin GPIO header
Video
2x micro-HDMI ports (4K60)
Multimedia
H.265 (4K60 decode)OpenGL ES 3.1, Vulkan 1.2
SD card
microSD
Power supply
5 V DC (via USB-C)
Keyboard layout
US (QWERTY)
Dimensions
286 x 122 x 23 mm
Downloads
Datasheet
Designed for overclockers and other power users, this fan keeps your Raspberry Pi 4 at a comfortable operating temperature even under heavy load. The temperature-controlled fan delivers up to 1.4 CFM of airflow over the processor, memory, and power management IC. The bundled heatsink (18 x 8 x 10 mm) with self-adhesive pad improves heat transfer from the processor. The Raspberry Pi 4 Case Fan works with Raspberry Pi 4 and the official Raspberry Pi 4 case.
The official Raspberry Pi keyboard and hub is a standard 78-key US keyboard that includes an additional three USB 2.0 type A ports to power other peripherals. The keyboard is available in different language/country options as detailed below. 78-key US keyboard Three USB 2.0 type A ports for powering other peripherals Automatic keyboard language detection USB type A to micro USB type B cable included for connection to compatible computer Ergonomic design for comfortable use Compatible with all Raspberry Pi products
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
Technical Specifications Dual ARM Cortex-M0+ @ 133 MHz 264 kB on-chip SRAM in six independent banks Support for up to 16 MB of off-chip Flash memory via dedicated QSPI bus DMA controller Fully-connected AHB crossbar Interpolator and integer divider peripherals On-chip programmable LDO to generate core voltage 2x on-chip PLLs to generate USB and core clocks 30x GPIO pins, 4 of which can be used as analogue inputs Peripherals 2x UARTs 2x SPI controllers 2x I²C controllers 16x PWM channels USB 1.1 controller and PHY, with host and device support 8x PIO state machines What you'll get 10x bare RP2040 chips
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.
Cool Projects for Test, Measurement, and Control
The Raspberry Pi has dominated the maker scene for many years. Freely accessible I/O pins have made it one of the most popular processor boards of all time. However, the classic Raspberry Pi has no analog inputs. Direct measurement of analog values is therefore not possible. Consequently, photodiodes, NTCs, Hall sensors, etc. cannot be read directly. In addition, the pins are connected directly to the exposed contacts, i.e. without a driver or protection circuit. This can quickly destroy the central controller and thus the entire Raspberry Pi.
These problems can be elegantly solved with the Pico. As a front-end, it can easily handle a wide range of measurement tasks. In addition, the Pico is much cheaper than a classic Raspberry Pi 4 or 5. If a faulty circuit leads to the destruction of the Pico, this is relatively easy to handle. This makes the combination of a classic Raspberry Pi 4 or 5 and the Pico an ideal pair.
The book introduces the broad and highly topical field of modern controller technology using the combined force of a Raspberry Pi 4 or 5 and a Raspberry Pi Pico. In addition to a detailed introduction to the operation and functionality of the controller boards themselves, the book also focuses on data acquisition and processing with digital processors. Especially the combination of both systems offers a wide range of interesting possibilities.
Some practical projects from the contents:
USB between Raspberry Pi 4 or 5 and Pico
I²C Communication and Pico as an I²C device
Voltmeter and Computer Thermometer
Pico W as a Web Server and WLAN Scanner
Frequency Meters and Generators
OLED Displays on Raspberry Pi 4 or 5 and Pico
Energy Saving Monitor
Which Astronauts are in Orbit?
Mini Monitor for Current Bitcoin Exchange Rate
World’s Most Popular ROS Platform TurtleBot is the most popular open source robot for education and research. The new generation TurtleBot3 is a small, low cost, fully programmable, ROS based mobile robot. It is intended to be used for education, research, hobby and product prototyping. Affordable Cost TurtleBot was developed to meet the cost-conscious needs of schools, laboratories and companies. TurtleBot3 is the most affordable robot among the SLAM-able mobile robots equipped with a 360° Laser Distance Sensor LDS-01. ROS Standard The TurtleBot brand is managed by Open Robotics, which develops and maintains ROS. Nowadays, ROS has become the go-to platform for all the roboticists around the world. TurtleBot can be integrated with existing ROS-based robot components, but TurtleBot3 can be an affordable platform for whom want to get started learning ROS. Extensibility TurtleBot3 encourages users to customize its mechanical structure with some alternative options: open source embedded board (as a control board), computer and sensors. TurtleBot3 Waffle Pi is a two-wheeled differential drive type platform but it is able to be structurally and mechanically customized in many ways: Cars, Bikes, Trailers and so on. Extend your ideas beyond imagination with various SBC, sensors and motors on a scalable structure. Modular Actuator for Mobile Robot TurtleBot3 is able to get a precise spatial data by using 2 DYNAMIXEL’s in the wheel joints. DYNAMIXEL XM series can be operated by one of 6 operating modes (XL series: 4 operating modes): Velocity control mode for wheels, Torque control mode or Position control mode for joint, etc. DYNAMIXEL can be used even to make a mobile manipulator which is light but can be precisely controlled with velocity, torque and position control. DYNAMIXEL is a core component that makes TurtleBot3 perfect. It is easy to assemble, maintain, replace and reconfigure. Open Control Board for ROS The control board is open-sourced in hardware wise and in software wise for ROS communication. The open source control board OpenCR1.0 is powerful enough to control not only DYNAMIXEL’s but also ROBOTIS sensors that are frequently being used for basic recognition tasks in cost effective way. Various sensors such as Touch sensor, Infrared sensor, Color sensor and a handful more are available. The OpenCR1.0 has an IMU sensor inside the board so that it can enhance precise control for countless applications. The board has 3.3 V, 5 V, 12 V power supplies to reinforce the available computer device lineups. Open Source The hardware, firmware and software of TurtleBot3 are open source which means that users are welcomed to download, modify and share source codes. All components of TurtleBot3 are manufactured with injection molded plastic to achieve low cost, however, the 3D CAD data is also available for 3D printing. Specifications Maximum translational velocity 0.26 m/s Maximum rotational velocity 1.82 rad/s (104.27 deg/s) Maximum payload 30 kg Size (L x W x H) 281 x 306 x 141 mm Weight (+ SBC + Battery + Sensors) 1.8 kg Threshold of climbing 10 mm or lower Expected operating time 2h Expected charging time 2h 30m SBC (Single Board Computers) Raspberry Pi 4 (2 GB RAM) MCU 32-bit ARM Cortex-M7 with FPU (216 MHz, 462 DMIPS) Remote Controller RC-100B + BT-410 Set (Bluetooth 4, BLE) Actuator XL430-W210 LDS (Laser Distance Sensor) 360 Laser Distance Sensor LDS-01 or LDS-02
Camera Raspberry Pi Camera Module v2.1 IMU Gyroscope 3 AxisAccelerometer 3 Axis Power connectors 3.3 V/800 mA5 V/4 A12 V/1 A Expansion pins GPIO 18 pinsArduino 32 pin Peripheral 3x UART, 1x CAN, 1x SPI, 1x I²C, 5x ADC, 4x 5-pin OLLO DYNAMIXEL ports 3x RS485, 3x TTL Audio Several programmable beep sequences Programmable LEDs 4x User LED Status LEDs 1x Board status LED1x Arduino LED1x Power LED Buttons and Switches 2x Push buttons, 1x Reset button, 2x Dip switch Battery Lithium polymer 11.1 V 1800 mAh / 19.98 Wh 5C PC connection USB Firmware upgrade via USB / via JTAG Power adapter (SMPS) Input: 100-240 VAC 50/60 Hz, 1.5 A @maxOutput: 12 VDC, 5 A Downloads ROS Robot Programming GitHub E-Manual Community
Learn to program displays and GUIs with Python
This book is about Raspberry Pi 4 display projects. The book starts by explaining how to install the latest Raspbian operating system on an SD card, and how to configure and use the GPIO ports.
The core of the book explains the following topics in simple terms with fully tested and working example projects:
Simple LED projects
Bar graph LED projects
Matrix LED projects
Bitmap LED projects
LED strips
LCDs
OLED displays
E-paper displays
TFT displays
7-inch touch screen
GUI Programming with Tkinder
One unique feature of this book is that it covers almost all types of display that readers will need to use in their Raspberry Pi based projects. The operation of each project is fully given, including block diagrams, circuit diagrams, and commented full program listings. It is therefore an easy task to convert the given projects to run on other popular platforms, such as Arduino or PIC microcontrollers.
Python program listings of all Raspberry Pi projects developed in this book are available for download at Elektor.com. Readers can use these programs in their projects. Alternatively, they can modify the programs to suit their applications.
The Raspberry Pi Zero W extends the Raspberry Pi Zero family. The Raspberry Pi Zero W has all the functionality of the original Raspberry Pi Zero, but comes with added connectivity consisting of:
802.11 b/g/n wireless LAN
Bluetooth 4.1
Bluetooth Low Energy (BLE)
Other Features
1 GHz, single-core CPU
512 MB RAM
Mini HDMI and USB On-The-Go ports
Micro-USB power
HAT-compatible 40-pin header
Composite video and reset headers
CSI camera connector
Downloads
Mechanical Drawing
Schematics
Raspberry Pi Pico W is a microcontroller board based on the Raspberry Pi RP2040 microcontroller chip.
The RP2040 microcontroller chip ('Raspberry Silicon') offers a dual-core ARM Cortex-M0+ processor (133 MHz), 256 KB RAM, 30 GPIO pins, and many other interface options. In addition, there is 2 MB of on-board QSPI flash memory for code and data storage.
Raspberry Pi Pico W has been designed to be a low cost yet flexible development platform for RP2040 with a 2.4 GHz wireless interface using an Infineon CYW43439. The wireless interface is connected via SPI to the RP2040.
Features of Pico W
RP2040 microcontroller with 2 MB of flash memory
On-board single-band 2.4 GHz wireless interfaces (802.11n)
Micro USB B port for power and data (and for reprogramming the flash)
40 pin 21 x 51 mm 'DIP' style 1 mm thick PCB with 0.1' through-hole pins also with edge castellations
Exposes 26 multi-function 3.3 V general purpose I/O (GPIO)
23 GPIO are digital-only, with three also being ADC capable
Can be surface mounted as a module
3-pin ARM serial wire debug (SWD) port
Simple yet highly flexible power supply architecture
Various options for easily powering the unit from micro USB, external supplies or batteries
High quality, low cost, high availability
Comprehensive SDK, software examples and documentation
Features of the RP2040 microcontroller
Dual-core cortex M0+ at up to 133 MHz
On-chip PLL allows variable core frequency
264 kByte multi-bank high performance SRAM
External Quad-SPI Flash with eXecute In Place (XIP) and 16 kByte on-chip cache
High performance full-crossbar bus fabric
On-board USB1.1 (device or host)
30 multi-function general purpose I/O (four can be used for ADC)
1.8-3.3 V I/O voltage
12-bit 500 ksps analogue to digital converter (ADC)
Various digital peripherals
2x UART, 2x I²C, 2x SPI, 16x PWM channels
1x timer with 4 alarms, 1x real time clock
2x programmable I/O (PIO) blocks, 8 state machines in total
Flexible, user-programmable high-speed I/O
Can emulate interfaces such as SD card and VGA
Note: Raspberry Pi Pico W I/O voltage is fixed at 3.3 V.
Downloads
Datasheet
Specifications of 3-pin Debug Connector
