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!
Mono Amplifier Kit with Power Switch and status LED - Kitronik 2173
Index: KTR-16878
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Raspberry Pi Hat - extenders findings
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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...
Index: PIB-25170
Index: PIB-25170
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
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...
Index: WSR-20080
Index: WSR-20080
The module with the HAT shield for Raspberry Pi is equipped with eight HLS8L relays with a coil powered with a voltage of 5 V along with optoelectronic insulation. The system...
Index: WSR-13301
Index: WSR-13301
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
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
Dual ETH Quad RS485 Base Board (B) is a board manufactured by Waveshare. It acts as a base board, a terminal expander designed to extend the capabilities of Raspberry Pi CM4...
Index: WSR-21618
Index: WSR-21618
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
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...
Index: WSR-04478
Index: WSR-04478
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 ,...
Index: PIB-24861
Index: PIB-24861
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...
Index: MSX-06077
Index: MSX-06077
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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
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...
Index: WSR-21612
Index: WSR-21612
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.
Index: MOD-09422
Index: MOD-09422
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
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...
Index: SBC-20381
Index: SBC-20381
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...
Index: PIB-24866
Index: PIB-24866
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.
Index: MSX-04552
Index: MSX-04552
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
Grove ADS1115 - 4-channel 16-bit ADC for Raspberry Pi - Seeedstudio 103030279
Grove 4-channel 16-bit ADS1115 ADC is an analog-digital converter (ADC) in the form of shield for GPIO connectors of Raspberry Pi. It is 4-channel ADC based on the ADS1115...
Index: SEE-13814
Index: SEE-13814
IO Expansion HAT for Raspberry Pi 4B/3B+/3B/2B - DFRobot DFR0566
Overlay for Raspberry Pi mini-computer in 4B / 3B+ / 3B / 2B version, where individual sections of Raspberry Pi outputs have been separated , such as: digital, analog, PWM,...
Index: DFR-15713
Index: DFR-15713
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
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
Extension to Compute Module 4 in the form of an extended expander . The board has a number of useful interfaces and a basket for three batteries, which enables wireless...
Index: WSR-21617
Index: WSR-21617
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!