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!
Raspberry Pi Hat - extenders findings
Ethernet / USB (B) HUB - 3xUSB 1xRJ45 Ethernet - frontend Overlay for Raspberry Pi - Waveshare 20416
Overlay for Raspberry Pi, adding three USB ports and one RJ45 Ethernet port. It has an embedded Ethernet RTL8152B chip. The pogo pin layout allows the overlay to connect...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...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....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...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,...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.Pineboards HatBRICK! Commander - 2xPCIe Gen2 adapter for Raspberry Pi 5
HatBRICK! Commander from Pineboards is an expansion board designed specifically for integration with Raspberry Pi 5 . It allows you to connect two additional PCIe boards ,...ADS1256/DAC8552 - A/C and C/A converter 24/16-bit SPI - overlay for Raspberry Pi - Waveshare 11010
Module with high precision converter of A/C and C/A in the form of shield for GPIO connectors of Raspberry Pi. It has 2 16-bit analog outputs and 8 24-bit analog inputs. It...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,...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...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.PiClock RTC PCF8563 I2C - real time clock + buzzer + battery for Raspberry Pi 3
A PCF8563 real time clock module whose supply voltage is maintained by a CR2032 round battery (included). The chip allows timekeeping while the Raspberry Pi is disconnected...- Reduced price
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Pineboards HatDrive! Nano - NVMe 2230, 2242 adapter for Raspberry Pi 5
HatDrive! Nano is a dedicated adapter that allows you to connect an NVMe SSD drive to a Raspberry Pi 5 single-board computer. Designed with memory expansion in mind, it...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...MSX Proto Hat for Raspberry Pi 4B/3B+/3B/2B
Board allows for self-creation of electronic circuits. It is connected directly to the GPIO pins of the Raspberry Pi minicomputer, version 4B / 3B+ / 3B / 2B.IO Pi Plus MCP23017 - expander for Raspberry Pi - 32 I / O pins
An overlay for Raspberry based on MCP23017 chip adding 32 I/O pins to the minicomputer. Connects via I2C bus . The module has a selectable address, so you can cascade...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...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...Pinebaords HatDrive! AI - NVMe 2230,2242 adapter with Coral Edge TPU to Raspberry Pi 5
HatDrive! AI by Pineboards is an advanced tool for AI enthusiasts and professionals, designed to integrate with Raspberry Pi 5 . It combines NVMe drive support and the...Pineboards Hat AI! Dual - Google Coral Dual Edge TPU PCIe M.2 E-key adapter for Raspberry Pi 5
Hat AI! Dual is an advanced expansion card for Raspberry Pi 5 , enabling the integration of Google Coral Dual Edge TPU in M.2 format with the E-key interface. Features an...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...GPIO I2C pin expander and LED driver - AW9523 - STEMMA AT / Qwiic - Adafruit 4886
GPIO pinout expander and LED driver . Equipped with AW9523 chip, provides up to 16 additional GPIO inputs / outputs . Uses I2C bus to communicate with connected...Pineboards Hat uPclty Lite - PCI Express overlay with PCIe x4 slot for Raspberry Pi 5
Hat uPCIty Lite is a PCI Express shield with a PCIe x4 slot, designed specifically for Raspberry Pi 5 . It allows you to connect advanced devices such as graphics cards...Raspberry Pi 400 Expansion + cable - SB Components SKU21307
An adapter to put the GPIO pinouts of the Raspberry Pi 400 minicomputer in a more accessible place. The manufacturer of Raspberry Pi has placed the GPIOs on the Pi 400 in the...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!