The HAT Brick is a Raspberry Pi HAT with the standard Raspberry Pi HAT form factor. The Brick follows the HAT specification and will automatically and without any changes work with Raspbian.
With the HAT Brick you can connect up to eight Bricklets to your Raspberry Pi.
The HAT Brick provides Bricklet ports with 7 poles each. You can connect Bricklets with a 7 pole to 7 pole cable to it. Only Bricklets with 7 pole Bricklet ports are supported.
You can power the Raspberry Pi through the HAT Brick by an external 5V-28V DC power supply. The onboard power supply will be able to provide stable 5V, even under heavy load. You can power the Raspberry Pi, connected Bricklets and USB devices connected to the Raspberry Pi's USB connectors as the HAT Brick delivers a slightly increased voltage of 5.3V to compensate additional load.
You can still power the HAT/Raspberry Pi through Micro-USB. In that case you have to ensure that the HAT Brick will be provided with stable 5V, for example by using the official Raspberry Pi universal power supply. The USB/DC supply voltages are measured and accessible through the API.
The HAT Brick has a real-time clock with battery backup that is directly connected to the Raspberry Pi. It can turn the Raspberry Pi off for a specified time. Therefore you can use the Raspberry Pi in battery powered applications, for example to send sensor information every hour to a cloud.
A watchdog can also be implemented with the HAT, so that the Raspberry Pi will be restarted if it crashes or your program gets stuck.
The HAT Brick is electrically compatible to the Raspberry Pi 2B, 3B, 3B+, 4B, Zero and Zero W. The mounting holes are compatible to the Raspberry Pi 2/3/4. We also offer a smaller HAT Zero Brick that has mounting holes which are compatible to the Raspberry Pi Zero.
Example project: Use the HAT Brick + Raspberry PI 4 with Thermal Imaging Bricklet and LCD 128x64 Bricklet to show the thermal image as 1-bit representation on the LCD. You can find the source code here.
Property Value Current Consumption 100mW (20mA at 5V) Bricklet Ports 8 DC Input Voltage 5-28V DC Output 5.3V, max. 4A Sleep Current (≤1.4)* 70mW (14mA at 5V) + 1.5mW if sleep indicator LED enabled Dimensions (W x D x H) 65 x 56 x 25mm (2.56 x 2.20 x 0.98") Weight 30g
*: This value is for HAT Brick with hardware version smaller or equal to 1.4.
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