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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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
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.
Index: MOD-07151
Index: MOD-07151
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
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
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
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
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
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
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
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
The module enables easy connection of all GPIO Raspberry minicomputer outputs in versions 4, 3, 2 and B+ with any contact plate without the need for soldering. The chip is...
Index: ADA-02781
Index: ADA-02781
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
Qwiic HAT for Raspberry Pi - SparkFun DEV-14459
Shield, type HAT for Raspberry Pi, facilitating the connection of modules SparkFun via connectors Qwiic. The shield connects the I2C bus on the Raspberry Pi with connectors Qwic.
Index: SPF-10664
Index: SPF-10664
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
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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
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
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
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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
ePaper Breakout Board - ePaper display driver for Seeed Xiao - Seeedstudio 105990172
ePaper Breakout Board is an extension designed for the Seeed Xiao series , enabling seamless control of ePaper displays . It has a 24-pin FPC connector and an additional...
Index: SEE-24130
Index: SEE-24130
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...
Index: ABE-11708
Index: ABE-11708
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Serial Expansion HAT - I2C, UART, GPIO for Raspberry Pi - Waveshare 15667
Shield with system SC16IS752 expanding the minicomputer Raspberry Pi with additional two communication channels of UART and GPIO ports programmable via I2C.
Index: WSR-13469
Index: WSR-13469
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
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
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!
