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RPi Zero GPIO extensions and HAT

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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
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Regular price €7.36 Price €6.62
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Raspberry Pi PoE+ HAT - Power over Ethernet for Raspberry Pi 4B/3B+ - SC0468

Cap designed for Raspberry Pi 3B+ and 4B versions which are equipped with 4-pin PoE connector. It allows simultaneous communication with LAN and powering the minicomputer...
Index: RPI-19537
Index: RPI-19537
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Regular price €24.30 Price €24.30

Logic level bi-directional converter, 4-channel - SparkFun BOB-12009

The module allows to exchange data between systems that use the most popular voltages levels: 5 V and 3.3 V and 1.8 V and 2.8 V. Works in both directions simultaneously. It has...
Index: SPF-02259
Index: SPF-02259
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Regular price €2.33 Price €2.33

4-channel logic level converter

The module allows to exchange data between systems that use the most popular levels of voltage: 5 V <-> 3.3 V and 3.3 V <-> 1,8 V. It works in both directions simulatneously....
Index: MSX-06117
Index: MSX-06117
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Regular price €1.71 Price €1.71

TV HAT tuner DVB-T - module with decoder for Raspberry Pi 4B/3B+/3B/Zero

Shield for Raspberry Pi which consists to the tuner of the terrestrial television. It enables the  reception of all available, uncoded channels of digital terrestrial...
Index: RPI-13066
Index: RPI-13066
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Regular price €21.70 Price €21.70

Power monitor HAT - 4 channel - for Raspberry Pi - Waveshare 17539

Overlay for the Raspberry Pi to monitor the current power consumption, voltage and power for the channel. It is equipped with 4 measuring channels. It communicates via I2C...
Index: WSR-16402
Index: WSR-16402
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Regular price €21.48 Price €21.48
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MCP23017 - I2C 16-channel output expander

The system allows to increase the number of pins (up to 16 ) of the microcontroller (including minicomputer of Raspberry Pi). It communicates with the central unit via the I2C...
Index: UCC-02556
Index: UCC-02556
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Regular price €1.29 Price €1.29

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
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Regular price €12.56 Price €12.56

Logic level bi-directional converter, 4-channel - Pololu 2595

Miniature (13 x 10 mm). the module allows to exchange data between systems that use the most popular voltage levels ranging from 1.5 V to 18 V and Vice versa. Four channels to...
Index: PLL-02523
Index: PLL-02523
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Regular price €2.16 Price €2.16

ReSpeaker v1.1 for Raspberry Pi - modul with 2 microphons - Seeedstudio 107100001

ReSpeaker is an expansion board for the Raspberry, equipped with 2 microphones, it is designed for AI and voice applications. It allows you to build efficient devices, which,...
Index: SEE-11408
Index: SEE-11408
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Regular price €9.96 Price €9.96

IQaudIO Codec Zero - sound card for Raspberry Pi 4B/3B+/3B

Codec Zero is a module with dimensions equal to Raspberry Pi Zero . The cover plate is equipped with a speaker output (mono), audio jack connectors to connect an electret...
Index: RPI-18617
Index: RPI-18617
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Regular price €20.40 Price €20.40

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
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Regular price €4.32 Price €4.32

HiFiBerry DAC2 Pro - sound card for Raspberry Pi 4B/3B+/3B

High quality sound card with digital-analogue and analogue-digital converter for Raspberry Pi 4B/3B+/3B. It is equipped with a Burr-Brown 192 kHz / 24-bit converter. On the...
Index: RHF-18129
Index: RHF-18129
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Regular price €54.03 Price €54.03

Logic level transmitter TXB0104 bi-directional, 4-channel - SparkFun BOB-11771

The module allows to exchange the data between systems that use the most popular voltage levels: from 1.2 V to 3.6 V for VCCA inputs, and from 1.65 V to 5.5 V for VCCB inputs....
Index: SPF-04290
Index: SPF-04290
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Regular price €4.67 Price €4.67

IQaudIO DAC+ - sound card for Raspberry Pi 4B/3B+/3B

The sound card designed for the Raspberry Pi minicomputer provides high quality Full HD 24-bit/192 kHz audio with built-in hardware volume control via the Linux built-in...
Index: RPI-18615
Index: RPI-18615
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UPS HAT Board - emergency power for Raspberry Pi

Cap for Raspberry Pi acting as emergency power when you connect a lipol battery 3.7 V. It has 4 information LEDs. Supports the cascade connection to the caps. Can be used with...
Index: MOD-08529
Index: MOD-08529
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Regular price €18.45 Price €18.45

Google AIY Vision Kit - set for build device to identify objects - Raspberry Pi Zero WH

A set consisting of elements enabling the construction of a device based on the Raspberry Pi Zero WH minicomputer, which allows to recognize objects using TensorFlow machine...
Index: PIG-17116
Index: PIG-17116
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Regular price €95.26 Price €76.21
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MCP3424 - ADC 18-bit 4-channel I2C converter

Module with analog-digital converter, delta-sigma type with 18-bit precision. It is equipped with four channels with differential inputs. It works at speed of up to 240 samples...
Index: DFR-03036
Index: DFR-03036
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Regular price €11.91 Price €11.91

HiFiBerry Digi + standard - sound card for Raspberry Pi 4B/3B+/3/2/B+/A+/Zero

Hat type overlay for Raspberry versions 4B, 3B+, 3B, 2B, A+, B, Zero with high quality S/PDIF interface and optical connector. The chip used in the device has 24-bit resolution...
Index: RHF-04872
Index: RHF-04872
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Regular price €31.47 Price €31.47

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
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Regular price €7.57 Price €7.57

Argon Fan HAT - module with fan for Raspberry Pi

40 x 40 mm fan cover for Raspberry Pi 4B / 3B+ / 3B / 2B. After downloading the script from the manufacturer, the fan speed can be adjusted . On the board there is a power /...
Index: ARG-15394
Index: ARG-15394
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Regular price €10.39 Price €10.39

MCP4725 DAC I2C converter - SparkFun BOB-12918

Digital-to-analog converter with I2C interface. The module allows you to receive signal in the form of analog voltage from any microcontroller that has I2C. It is powered with...
Index: SPF-02275
Index: SPF-02275
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Regular price €4.75 Price €4.75

Extension GPIO Raspberry 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
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Regular price €6.49 Price €6.49

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
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Regular price €5.53 Price €5.53

What are HAT overlays, and what is their purpose?

HAT overlays are rectangular boards with dimensions of 65mm x 56mm. They are distinguished by rounded corners, as well as holes for fixing them to the case. In addition, the HAT overlay has a 40-pin GPIO connector that is compatible with Raspberry Pi. Automatic system configuration is possible with ID_SD and ID_SC pins. They connect via the I2C interface to the EEPROM memory, which contains configuration software on all GPIO pins, but also Device Tree files. These files are necessary for automatic software installation via Linux because they contain a description of a HAT board.

Our shop offers HAT overlays in different variants, which allows us to match them to a specific version of Raspberry Pi, both the latest and older ones, which are still used by many users. This way, you can be sure that the overlay is compatible with the device, and thus the whole thing will work smoothly and safely.

What should you know about the GPIO extension?

GPIO, which is actually General Purpose Input Output, is the basic parameter of Raspberry Pi. Digital GPO pins have two statuses, i.e. ON and OFF, sometimes also have a receiving direction. If we know and use the appropriate programming language, such as JavaScript or Python, we can control their direction and status. GPIOs are designed to operate at a voltage of 3.3 V, and the maximum current load is 16 mA. So we can power up to two LEDs from a single pin. However, we will need external components in this case, which already uses more power.

GPIO connects Raspberry Pi with Hat overlays. The 40-pin connector allows you to connect external devices, with it you can transmit the output signals needed to control external processes. It is also needed to receive input signals. GPIO extensions, which take the form of HAT overlays, allow you to use Raspberry Pi in many areas of your life. They give you the opportunity to create a LED lighting controller, which is today considered not only the most energy-efficient light source but also the smartest, of course, if we connect it with the controllers. HAT overlays also support the creation of meteorological stations with sensors of temperature, precipitation, wind speed and other weather parameters. We will also use GPIO extensions in designing, among others, drivers for electric gate motor. GPIO extension has also found its application in monitoring and irrigation systems. This means that Raspberry Pi is perfectly suited for modern smart construction. All this thanks to HAT overlays and GPIO extensions.

Create a sound system in your car, a home monitoring system, a weather station or simply improve your everyday comfort with smart lighting. Check our offer of HAT overlays!