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!
Velleman VMP500 prototype KIT for Raspberry Pi 4B/3B+/3B/2B/Zero
Index: VEL-10721
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Raspberry Pi 4B GPIO extensions and HAT
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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....
Index: MSX-06117
Index: MSX-06117
MCP23017 - I2C 16-channel output expander
The system allows to increase the number of pins (up to 16 ) of the microcontroller (including minicomputer of Raspberry Pi). It communicates with the central unit via the I2C...
Index: UCC-02556
Index: UCC-02556
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,...
Index: MOD-03790
Index: MOD-03790
Raspberry PI 4/3/B+/2 GPIO Expansion Board E1 - blue
The board provides the connection of the three modules to each of the GPIO pins of the Raspberry Pi. It has 3 rows of goldpin connectors, 40 pieces in each.
Index: MOD-07149
Index: MOD-07149
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...
Index: SPF-02259
Index: SPF-02259
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...
Index: MSX-02927
Index: MSX-02927
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...
Index: DNG-11800
Index: DNG-11800
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...
Index: RPI-19537
Index: RPI-19537
The Power over Ethernet HAT (C) is a module in the form of a HAT overlay that is designed for the Raspberry Pi. It is compatible with 3B+ and 4B versions of the minicomputer. It...
Index: WSR-18771
Index: WSR-18771
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,...
Index: RPI-02892
Index: RPI-02892
Raspberry Pi DAC Pro - sound card for Raspberry Pi 4B/3B+/3B
The Raspberry Pi DAC Pro is based on the Burr Brown PCM5242 32-bit / 384 kHz converter, allows for Full HD 24-bit / 192 kHz audio playback. The module is equipped with two...
Index: RPI-18616
Index: RPI-18616
Grove Base Kit for Raspberry Pi 4B/3B+ a set for beginners
Grove it modular to create simple projects using components based on the same interface. The kit includes Grove Base Hat + 10 modules and sensors.
Index: SEE-14420
Index: SEE-14420
Hub USB Hat - 4-port hub for Raspberry Pi 4B/3B+/3B/Zero - Waveshare 12694
Hat for the Raspberry Pi that adds 4 USB ports and a converter USB-UART. The device has dimensions of 65 x 30 mm, it works with Raspberry Pi 4B/3B+/3B and Zero and Zero W.
Index: WSR-08870
Index: WSR-08870
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...
Index: PLL-02523
Index: PLL-02523
Uninterruptible power supply UPS - Power adapter for Raspberry Pi - 5 V - Waveshare 18306
UPS power supply in the form of an overlay for Raspberry Pi , which brings extra power to the module in case of power failure or while traveling. It is powered by two 18650...
Index: WSR-19046
Index: WSR-19046
Power over Ethernet HAT (E) is a shield for Raspberry Pi in version 3B+ and 4B . It allows you to simultaneously obtain a network connection in the 802.3af standard and to...
Index: WSR-22399
Index: WSR-22399
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...
Index: RPI-13066
Index: RPI-13066
ReSpeaker Mic Array v2.0 by Seeed is another more extended version of ReSpeaker Mic Array v1. The board with built-in long-range microphone, capable of detecting voices at a...
Index: SEE-14133
Index: SEE-14133
MSX RTC DS1307 I2C - real time clock
Module with real time clock and backup battery (battery included). It allows you to read the time in hours, minutes, and seconds, date: month, day, year. The communication...
Index: MOD-02717
Index: MOD-02717
HiFiBerry DAC+ RCA Zero for 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, the converter of quality ESS DAC has a resolution of...
Index: RHF-07482
Index: RHF-07482
Grove - Base Hat for Raspberry Pi - shield for Raspberry Pi 4B/3B+/3B
Overlay for Raspberry Pi 4B / 3B+ / 3B based STM32 microcontroller with 12-bit ADC, with Grove connectors, allows the connection of sensors and modules from the Grove...
Index: SEE-15458
Index: SEE-15458
HiFiBerry DAC2 Pro - sound card for Raspberry Pi 4B/3B+/3B
High quality sound card with digital-analogue and analogue-digital converter for Raspberry Pi 4B/3B+/3B. It is equipped with a Burr-Brown 192 kHz / 24-bit converter. On the...
Index: RHF-18129
Index: RHF-18129
HiFiBerry DAC+ RCA standard - 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...
Index: RHF-04875
Index: RHF-04875
RTC Pi DS1307 - RTC real time clock overlay for Raspberry Pi
Shield for Raspberry is based on a system DS1307 with real time clock. It connects via the I2C bus. The module has a socket for CR2032 batteries that support the operation of...
Index: ABE-11716
Index: ABE-11716
See also
Comprehensive control units for robotics projects
Kiedy tworzymy projekt robota, dobrze jest zadbaฤ o jego dobre wyposaลผenie pod kฤ tem ukลadรณw sterowania. Znakomitym solution jest nakลadka 4tronix RoboHAT. Ten moduล zawiera zestaw programowalnych wejลฤ i wyjลฤ, to ktรณrych moลผesz podลฤ czyฤ czujniki, buzzers, LEDs oraz sterownik silnikรณw elektrycznych i serwomechanizmรณw. Nakลadka zostaลa starannie zmontowana i jest gotowa do podลฤ czenia do Raspberry Pi bezpoลrednio po unboxing. Zasilanie moduลu moลผe byฤ podลฤ czone poprzez zลฤ cze ลrubowe ARK oraz gniazdo zasilajฤ ce DC jack. Konstruktorzy udostฤpnili przykลadowe programy i zestawy instrukcji w Pythonie, w oparciu o ktรณre uลผytkownik moลผe poznaฤ zasadฤ dziaลania robotรณw. Z tego powodu, nakลadkฤ RobotHAT szczegรณlnie polecamy osobom rozpoczynajฤ cym przygodฤ z robotykฤ .
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-musicalโ 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.
