Microcomputers of Raspberry Pi attract more and more fans with every month. This is not only due to the latest models, characterized by exceptionally good parameters, including high computing power. Moreover, they offer great possibilities for use by both robotics and programming specialists, as well as people who need the hardware for normal daily use as an alternative to a classic tablet. The Raspberry Pi works well in many conditions, especially since it can be combined with various peripheral devices, which will create a hardware customized to our individual needs, as well as one that matches our project perfectly. Raspberry has a huge potential, but it remains underused to the maximum extent, which only reinforces the desire to discover its new possibilities not only by experienced programmers. The Raspberry Pi features a 40-pin GPIO connector that allows us to connect external devices. When you need an additional interface for your SoC processor to connect to the outside world, not necessarily favourable one, you can use the output expanders. You'll find them in our offer!
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Raspberry Pi Hat - extenders findings
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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
Breakout Pi Zero - prototype board for Raspberry Pi Zero
The board allows you to create your own electronic circuits . It is connected directly to GPIO pins of Raspberry Pi minicomputer. It has separate pins, in groups, as well...
Index: ABE-11714
Index: ABE-11714
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
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...
Index: WSR-13466
Index: WSR-13466
Breakout Pi Plus - prototype board for Raspberry Pi
Board allows for self-creation of electronic circuits. It is connected directly to the GPIO pins of the Raspberry Pi minicomputer. It has led-out pins - separately in groups,...
Index: ABE-11710
Index: ABE-11710
ADC ADS1263 converter 32-bit - 10-channel - overlay for Raspberry Pi - Waveshare 18983
High precision ADC in form of Raspberry Pi minicomputer frontend, also compatible with Nvidia's Jetson Nano platform. A powerful ADS1263 chip is responsible for the operation...
Index: WSR-19042
Index: WSR-19042
Proto Board for Raspberry Pi Zero
Board allows independent creation of electronic circuits. Connected directly to the GPIO pins of the Raspberry Pi minicomputer in a version Zero.
Index: MSX-05794
Index: MSX-05794
1 Wire Pi Plus DS2482 - 1-Wire module for Raspberry Pi
Shield for Raspberry based on DS2482-100 system which allows you to use the 1-Wire protocol. The module provides a conversion of the I2C interface. It has built-in a RJ12...
Index: ABE-11711
Index: ABE-11711
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
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...
Index: OST-14314
Index: OST-14314
SparkFun Qwiic SHIM for Raspberry Pi - SparkFun DEV-15794
SparkFun Qwiic SHIM is a small module applied to the GPIO pins of Raspbery, with which you can easily equip a minicomputer with a Qwiic connector. The module is plugged...
Index: SPF-21163
Index: SPF-21163
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
1 Wire Pi Zero DS2482 - 1-Wire module for Raspberry Pi
Shield for Raspberry, based on DS2482-100 system, allows you to use the 1-Wire protocol. The module provides conversion to the I2C interface. It has built-in RJ12 connector,...
Index: ABE-11721
Index: ABE-11721
Module ProtoPi Plus - extension for Raspberry Pi 4/3/2/B + to breadboard + ribbon wire
The module provides easy connection of all GPIO leads of the Raspberry minicomputer, version 4, 3, 2 and B+ with any breadboard, no soldering needed.
Index: MOD-02607
Index: MOD-02607
RPi Relay Board - 3 relays - cap for Raspberry Pi - Waveshare 11638
Cap fitted to connectors of Raspberry Pi GPIO in version 4B, 3B+, 3B, 2B, B+ and A+, with three relays with parameters of 250 V / 10 A. Board has a screw connector....
Index: WSR-06804
Index: WSR-06804
ADC Pi MCP3424 - 8-channel A/D converter
Module with high precision A/C converter in the form of shields for GPIO connectors of Raspberry Pi. It has 8 17-bit channels, analog outputs operating in mode Single Ended...
Index: ABE-11715
Index: ABE-11715
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
ADC Differential Pi - MCP3424 - 8-channel A/D converter
Module with high precision A/C converter in the form of shields for GPIO connectors of Raspberry Pi. It has 8 18-bit channels, analog outputs operating in Differential mode...
Index: ABE-11712
Index: ABE-11712
USB Hub Hat (B) - 4-port hub - overlay for Raspberry Pi 4B/3B+/3B/Zero - Waveshare 20317
A USB hub in the form of an overlay for Raspberry Pi minicomputers, manufactured by Waveshare. The device is able to expand the number of ports on Raspberry Pi by 4 more in...
Index: WSR-20082
Index: WSR-20082
Raspberry Pi Build HAT - LEGO motors and sensors driver - RP2040
A LEGO motor and sensor controller made by the Raspberry Pi Foundation. Based on the Raspberry Pi RP2040 microcontroller, this controller for four LEGO motors allows you to...
Index: RPI-20291
Index: RPI-20291
PCF8575 - GPIO pin expander - I2C - STEMMA QT / Qwiic - Adafruit 5611
Adafruit pin expander equipped with PCF8575 chip. It has as many as 16 pins of GPIO inputs / outputs , thanks to which it increases the design possibilities of the modules...
Index: ADA-22192
Index: ADA-22192
ADC 16-bit converter - 4-channel ADS1115 - overlay for Raspberry Pi
Shield for Raspberry Pi with analog-digital converter of 16-bit accuracy and a small package MSOP-10. It has programmable data transfer speed from 8 to 860, 4 analog inputs and...
Index: MOD-09861
Index: MOD-09861
Expansion Kit - extension Raspberry Pi to breadboard + tape + breadboard - Iduino RA028
A module that allows the GPIO Raspberry Pi pins to be led out onto the contact plate using IDC tape. The kit also includes a contact plate and 40-pin tape.
Index: OST-14267
Index: OST-14267
Serial Expansion HAT UART, GPIO SC16IS752 for Raspberry Pi - SB Components SKU14873
Serial expander in form of HAT overlay for Raspberry Pi minicomputers equipped with 40-pin GPIO connector. The overlay is based on SC16IS752 chip which extends Raspberry Pi...
Index: SBC-20406
Index: SBC-20406
See also
Extended I/O system in Raspberry Pi
To connect the Raspberry Pi to the external electronics, we use transition boards, in the form of a PCB, equipped with additional tracks and goldpins, responsible for connecting their own elements above the device board. One track is assigned to one connector pin. Sometimes, however, the board is already equipped with AWG tape, which on the other hand has female IDC40 plugs. It is thanks to this tape that we can connect Raspberry Pi to our own board, which does not necessarily need to be located directly above the computer, but nearby. This is what distinguishes AWG tapes from most Raspberry Pi HAT overlays. It happens, however, that the number of GPIO lines in the Raspberry Pi connector is too small for us, which means that we can't connect as many peripheral devices as we planned and need to do in order to complete the project or create a device that will be compatible with our plans and needs. In such cases we use output expanders. What is their purpose?
Output expanders are dedicated for integrated circuits that use a serial interface such as SPI and I2C to expand the input/output network. This way we gain additional lines, which were previously missing from the original connector. This is how Waveshare Serial Expansion HAT works, for instance. This is one of the overlays for the Raspberry Pi microcomputer, which contains SC16IS752 chip. Using the Waveshare Serial Expansion HAT overlay, we are definitely extending the capabilities of our computer. This way we gain two additional UART interfaces, as well as eight GPIO lines. These are configured via the I2C bus. The output expanders are used very often when planning a large project and a very complex device. They allow the Raspberry Pi to be used with virtually no limitations. The extensive layout of the outputs creates unlimited possibilities for the most ambitious projects.
What will make your Raspberry even more powerful?
If you are not fully satisfied with the current state of your Raspberry, have a look at our store and see how you can further enhance its capabilities. You'll find everything you need to enable it to do even more for you. We offer both simple GPIO lines as well as expanders with many useful features. These allow you to use an additional 16-bit analog-to-digital converter as well as four additional USB ports. You also get the chance to use a set of relays to control high loads at higher voltages. Check what we have prepared for you and your Raspberry. Discover that there is even more to it than before. Create a new project, even more advanced and challenging!