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Raspberry Pi 4B GPIO extensions and HAT

Single-board mini computers from the Raspberry Pi series have gained recognition around the world. They are used by both home-type tinkerers and professional designers of programmable electronic devices. In 2019, the latest model appeared on sale - the Raspberry Pi 4B. Compared to previous models, Pi 4B has been equipped with an even more efficient quad-core processor Broadcom BCM2711 clocked at 1,5 GHz of frequency and for the first time, it consists two Micro HDMI outputs for external monitors instead of a single standard A-type HDMI connector. You can use the Raspberry Pi 4B in the same way as a standard PC for internet browsing and office work, as well as a driver for physical devices with electronic and mechanical systems, thanks to the versatile 40-pin GPIO connector. By using the GPIO connector in Raspberry Pi, you can easily create a home automation management centre, electrical drive controller, audiophile D-class amplifier, retro-style gaming machine, remote control apparatus for unmanned vehicles and much more! Sounds marvellous, isn't it? And it's still real to come true - just use the Raspberry Pi HAT hardware extension boards that are GPIO-compatible with Raspberry Pi 4B!

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Products: 217

Raspberry Pi PoE+ HAT - Power over Ethernet for Raspberry Pi 4B/3B+ - SC0468

Cap designed for Raspberry Pi 3B+ and 4B versions which are equipped with 4-pin PoE connector. It allows simultaneous communication with LAN and powering the minicomputer...

4.7 (13)

Index: RPI-19537

Index: RPI-19537

RTC module DS3231 I2C - real time clock

Module with real time clock, allows you to read the time in hours, minutes, and seconds, and to read the date: month, day, year. The device was based on the DS3231 system,...

4.9 (13)

Index: MOD-03790

Index: MOD-03790

ProtoPi Plus Slide - Raspberry Pi+ GPIO extension to contact board + tape

ProtoPi Plus Side - extension GPIO Raspberry Pi 4/3/2/B for breadboard + tape

The module allows you to connect the GPIO leads of the Raspberry Pi 4, 3, 2 and B plus minicomputer to popular 830-hole contact boards using the included 40-wire tape. The...

5.0 (2)

Index: MSX-02927

Index: MSX-02927

MAX98357A decoder stereo DAC I2S - SparkFun DEV-14809

The stereo decoder's module DAC to communicate through the I2S interface. Built-in class D amplifier can provide up to 3.2 W of power to the speakers or headphones with...

5.0 (2)

Index: SPF-13062

Index: SPF-13062

TV HAT tuner DVB-T - module with decoder for Raspberry Pi 4B/3B+/3B/Zero

Shield for Raspberry Pi which consists to the tuner of the terrestrial television. It enables the reception of all available, uncoded channels of digital terrestrial...

4.6 (19)

Index: RPI-13066

Index: RPI-13066

4-channel logic level converter

The module allows to exchange data between systems that use the most popular levels of voltage: 5 V <-> 3.3 V and 3.3 V <-> 1,8 V. It works in both directions simulatneously....

4.8 (12)

Index: MSX-06117

Index: MSX-06117

Logic level bi-directional converter, 4-channel - SparkFun BOB-12009

The module allows to exchange data between systems that use the most popular voltages levels: 5 V and 3.3 V and 1.8 V and 2.8 V. Works in both directions simultaneously. It has...

4.9 (10)

Index: SPF-02259

Index: SPF-02259

Logic level bi-directional converter, 4-channel - Pololu 2595

Miniature (13 x 10 mm). the module allows to exchange data between systems that use the most popular voltage levels ranging from 1.5 V to 18 V and Vice versa. Four channels to...

4.9 (6)

Index: PLL-02523

Index: PLL-02523

RS485 CAN HAT - overlay for Raspberry Pi - Waveshare 14882

Shield for Raspberry Pi, version 4B / 3B+ / 3B / 2B / Zero / Zero W with system SN65HVD230 which allows communication between CAN and SPI and the SP3485 system that...

4.8 (6)

Index: WSR-12532

Index: WSR-12532

IQaudIO DAC+ - sound card for Raspberry Pi 4B/3B+/3B

The sound card designed for the Raspberry Pi minicomputer provides high quality Full HD 24-bit/192 kHz audio with built-in hardware volume control via the Linux built-in...

4.9 (12)

Index: RPI-18615

Index: RPI-18615

Konwerter poziomów logicznych 3,3V / 5V I2C UART SPI

Logic level converter 3,3V / 5V - I2C UART SPI

The module allows to exchange data between systems that use two popular voltages: 3.3 V and 5 V. It provides connection of interfaces: UART, SPI and I2C.

5.0 (4)

Index: MOD-01513

Index: MOD-01513

Raspberry Pi DAC Pro - sound card for Raspberry Pi 4B/3B+/3B

Raspberry Pi DAC Pro is based on a Burr Brown PCM5242 32-bit / 384 kHz converter , allowing for Full HD 24-bit / 192 kHz audio playback. The module is equipped with two...

5.0 (10)

Index: RPI-18616

Index: RPI-18616

MCP4725 DAC I2C converter - SparkFun BOB-12918

Digital-to-analog converter with I2C interface. The module allows you to receive signal in the form of analog voltage from any microcontroller that has I2C. It is powered with...

5.0 (1)

Index: SPF-02275

Index: SPF-02275

GPIO pin header expander for Raspberry Pi 3/2 / B + with quick couplers - cascade

An expansion board that allows you to easily connect the modules to the GPIO pins on a Raspberry Pi. Board is combined with minicomputer via 40-strip ribbon . It has goldpin...

5.0 (2)

Index: DNG-11800

Index: DNG-11800

MCP23017 Expansion Board - 16 I/O - for Arduino and Raspberry Pi - Waveshare 15391

Expander of pins on the basis of the MCP23017 system, it extends the capabilities of the Arduino or Raspberry Pi with additional 16 pins of I/O. It communicates via I2C...

5.0 (2)

Index: WSR-13466

Index: WSR-13466

Argon One M.2 NVMe expansion board - for Raspberry Pi 4B

Expansion board made by Argon40 for Argon One enclosures , which allows you to boot the Raspberry Pi 4B minicomputer system using an M.2 NVMe SSD. Simply replace the lower...

4.8 (8)

Index: ARG-21352

Index: ARG-21352

MCP23018-E/SP - 16-Bit I/O Expander with Open-Drain Outputs

The system allows to increase the number of pins (up to 16) of the microcontroller (including minicomputer Raspberry Pi). It communicates with the central unit via the I2C bus...

4.9 (5)

Index: UCC-06506

Index: UCC-06506

Argon Fan HAT v1.5 - module with fan for Raspberry Pi

Overlay with 40 x 40 mm fan for Raspberry Pi 4B / 3B+ / 3B. After downloading the script from the manufacturer's website, you can adjust the fan speed . There is a power /...

4.7 (5)

Index: ARG-15394

Index: ARG-15394

Raspberry Pi 3B+/3B/2B/B+ GPIO extension to contact board + tape + contact board

Extension GPIO Raspberry 4B/3B+/3B/2B/B+ to the contact plate + tape + breadboard

This module allows to connect GPIO pins of Raspberry Pi 4B, 3B+, 3B, 2B and B+ versions to the PCB using 40 wires tape. The kit includes GPIO extension module, contact board...

5.0 (2)

Index: OST-14314

Index: OST-14314

ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier STEMMA QT/Qwiic- Adafruit 1085

Module with analog to digital converter with 16-bit precision. Running at a speed of up to 860 samples per second. It has the ability to change the amplification of up to 16 x....

5.0 (2)

Index: ADA-08444

Index: ADA-08444

HiFiBerry DAC+ RTC - sound card for Raspberry Pi 4B/3B+/3/2/B+/A+/Zero

Shield, type Hat for Raspberry, version 4B, 3B+, 3B, 2B, A+, B, Zero with RCA connectors. It is used in the device of high-quality, DAC Burr-Brown chip has a resolution of 24...

5.0 (4)

Index: RHF-12131

Index: RHF-12131

LTE GPS HAT - NB-IoT / LTE / GPRS / GPS SIM7000E - for Raspberry Pi 3B+/3B/2B/Zero - Waveshare 14865

Shield for Raspberry Pi that allows you to send text messages in the GSM network. It also has a GPS and LTE module. It communicates via serial interface UART (RX, TX) using the...

5.0 (7)

Index: WSR-12531

Index: WSR-12531

Argon ONE M.2 SATA expansion board - for Raspberry Pi 4B

Argon One M.2 is an expansion board for Argon One cases. It allows you to run your Raspberry Pi using an M.2 SATA SSD , which provides faster boot up and more capacity . It...

5.0 (9)

Index: ARG-18766

Index: ARG-18766

Extension GPIO Raspberry Pi 3/2/B+ to the contact plate + tape

The module allows connection of the GPIO leads of the minicomputer Raspberry Pi 3, 2 and B + to popular breadboards with 830 and 400 holes, using an attached to the set,...

5.0 (2)

Index: RPI-02892

Index: RPI-02892

Comprehensive control units for robotics projects

Kiedy tworzymy projekt robota, dobrze jest zadbać o jego dobre wyposażenie pod kątem układów sterowania. Znakomitym solution jest nakładka 4tronix RoboHAT. Ten moduł zawiera zestaw programowalnych wejść i wyjść, to których możesz podłączyć czujniki, buzzers, LEDs oraz sterownik silników elektrycznych i serwomechanizmów. Nakładka została starannie zmontowana i jest gotowa do podłączenia do Raspberry Pi bezpośrednio po unboxing. Zasilanie modułu może być podłączone poprzez złącze śrubowe ARK oraz gniazdo zasilające DC jack. Konstruktorzy udostępnili przykładowe programy i zestawy instrukcji w Pythonie, w oparciu o które użytkownik może poznać zasadę działania robotów. Z tego powodu, nakładkę RobotHAT szczególnie polecamy osobom rozpoczynającym przygodę z robotyką.

An interesting offer for music and electronics enthusiasts

Using the Pimoroni Piano HAT overlay, you can turn the Raspberry Pi 4B into a simple music synthesizer with keyboard and buttons. According to the standards in the hardware design of synthesizers and drum machines since the 1980s, this overlay supports MIDI protocol (Musical Instruments Digital Interface). The keyboard contains a single octave with a C1-C2 tonal range (13 notes). These are capacitive touch keys. In addition, the user has at his disposal buttons for changing the tonal range (Octave Up / Octave Down) and a button for selecting sound presets stored in memory. The Piano HAT overlay is equipped with a GPIO connector that is compatible with the Raspberry Pi 4B minicomputer hardware. A practical feature of the overlay is built-in LEDs that perform an educational function. All you have to do is follow which of the LEDs that are linked with keys are lights up to learn to play simple songs from scratch. The program implementing this function was written in Python and is pre-loaded into memory in the Piano HAT module. The alternative,,non-musical” project, which you can create by using this board is a whac-a-mole game.

A simple way to control electrical circuits powered by mains voltage

Also, SparkFun Electronics has prepared interesting hardware extensions for Raspberry Pi. The RELAYplate module contains seven Single-Pole Single-Throw Normally Opened electromechanical relays. With this overlay, you can control the circuits powered by a voltage of 120VAC or 30VDC. The overlay allows you to switch-on and switch-off the power supply of electric motors, pumps, fans, lighting, heaters and other electrical devices. The kit includes a protective cover to prevent accidental electric shock due to contact with high voltage circuits. At the same time, you can connect eight such modules together, which gives you the ability to control up to 56 circuits in parallel, independently of each other. The board is equipped with LEDs that indicate the state of contacts of individual relays. The RelayPLATE overlay is controlled by a 40-pin GPIO connector, the pin layout of which is compatible with most models of the Raspberry Pi minicomputer, including Pi 4B.