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
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...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....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.Proto Hat to Raspberry Pi 4B/3B+/3B/2B
Board allows for independent creation of electronic circuits. It is connected directly to the GPIO pins of the Raspberry Pi minicomputer, version 4B / 3B+ / 3B / 2B.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...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...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.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...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.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.Expander of GPIO leads for Raspberry PI 4/3/2/B+ with clamps
An expansion board that allows you to easily connect the modules to the GPIO pins on a Raspberry Pi. It has goldpin connectors and clamps with push button.Maker Hat Base - HAT GPIO Extension for Raspberry Pi 400
The GPIO Maker Base HAT extension from Cytron, designed mainly to work with the Raspberry Pi 400 minicomputer, but can also be successfully used with other Raspberry Pi...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...- New
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,...ADC-DAC Pi Zero MCP3203 + MCP4822 - A/C and C/A converter 12-bit SPI - overlay for Raspberry Pi
Module with high precision converter of A/C and C/A in the form of shields for GPIO connectors of Raspberry Pi. It features 2 12-bit channels of the analog outputs and 2...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...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...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,...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...Nano Base Board (B) for Raspberry Pi Compute Module 4, Same Size as the CM4
Expander of pins in the form of an overlay for the Raspberry Pi Compute Module 4 Lite / eMMC computing module . It has been equipped with special connectors, thanks to...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...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...Automation Hat 3x relay + LED - Raspberry Pi extension
The module is working with a Raspberry Pi, it is mounted on the GPIO connectors, designed for home automation. It has 3 relays of 24 V / 2 A, 15 LED indicators, analogue...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!