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RPi Zero GPIO extensions and HAT

Products: 10
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UPS HAT for Raspberry Pi Zero - DFRobot DFR0528

A cap designed for the Raspberry Pi Zero , serving as an emergency power supply in the event of a mains power failure. The module is also compatible with other versions of...
Index: DFR-15714
Index: DFR-15714
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Regular price PLN53.58 Price PLN53.58

Module with USB connector for Raspberry Pi Zero - SparkFun KIT-14526

Overlay equipped with USB connector for Raspberry Pi Zero. Once the overlay is installed on the device it can be connected directly to a computer or HUB without any...
Index: SPF-10869
Index: SPF-10869
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Regular price PLN25.93 Price PLN25.93

NB-IoT HAT -GSM SIM7020E - Hat for Raspberry Pi 4B/3B+/3B/2B/Zero - Waveshare 15936

NB-IoT overlay for Raspberry Pi, which allows for creating GSM network connections . Supports communication protocols such as LWM2M/COAP/MQTT . Communicates via serial...
Index: WSR-14779
Index: WSR-14779
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Regular price PLN76.42 Price PLN76.42

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 PLN202.44 Price PLN202.44

DC Motor Driver HAT V1.0 - 2-channels motor driver 12V/1,2A - HAT for Raspberry Pi - DFRobot DFR0592

Two-channel DC motor controller TB6612FNG operating with voltage from 7 V to 12 V and continuous current 1.2 A per channel and momentary 2 A. The module in the form of an...
Index: DFR-15298
Index: DFR-15298
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Regular price PLN53.58 Price PLN53.58

IoT LoRa Gateway HAT 868MHz - HAT for Raspberry Pi 4B/3B+/3B/2B/Zero

The IoT Lora Gateway is an overlay for Raspberry Pi, which allows you to create an access gateway for LoRa, compatible with The Thing Network. LoRa Gateway is part of LoRaWAN,...
Index: SUP-14865
Index: SUP-14865
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Regular price PLN625.20 Price PLN625.20

PiJuice Zero - A Portable Power Platform for Raspberry Pi Zero

Portable power platform for Raspberry Pi Zero minicomputers. When connected to any power source, it acts as a wireless UPS . It uses intelligent power management...
Index: SUP-17486
Index: SUP-17486
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Regular price PLN153.66 Price PLN153.66

UPS HAT for Raspberry Pi Zero - Waveshare 19739

The UPS overlay provides uninterrupted power to the Raspberry Pi Zero minicomputer, thanks to the Li-Pol battery, when the power from the Raspberry Pi Zero power supply...
Index: WSR-19717
Index: WSR-19717
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Regular price PLN92.68 Price PLN92.68

Grove - Base Hat for Raspberry Pi Zero - shield for Raspberry Pi Zero

Overlay for Raspberry Pi Zero / Zero W based STM32 microcontroller with 12-bit ADC, with Grove connectors, allows to connect sensors and modules from Grove series...
Index: SEE-15459
Index: SEE-15459
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Regular price PLN30.81 Price PLN30.81

Enviro pHAT - temperature, humidity, pressure, light, gas, ADC sensor with microphone - HAT for Raspberry Pi

Overlay for Raspberry Pi equipped with BME280 temperature, pressure and humidity sensor, LTR-559 light and proximity sensor, MICS6814 analog gas sensor, ADC ADS1015...
Index: PIM-17074
Index: PIM-17074
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Regular price PLN199.19 Price PLN199.19

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!