DFRobot
Raspberry Pi 4B GPIO Terminal Block HAT
This terminal block expansion hat for Raspberry Pi offers securely and stably fitted connections for your projects. All GPIO pins are broken out to terminal ...
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This terminal block expansion hat for Raspberry Pi offers securely and stably fitted connections for your projects.
All GPIO pins are broken out to terminal blocks. The terminal block is labeled with high-quality color silkscreens, clear and durable. Besides, it has onboard level indication LEDs for corresponding pins below the blocks, which allows users to directly view the pin status when operating GPIO so as to conveniently do testing, debugging, and post-maintenance.
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Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- Terminal block
- A terminal block is a connector that joins wires together in a neat, removable, or serviceable way, usually clamping each wire under a screw or spring instead of soldering. It makes it easier to connect, change, or service wiring without permanent joints.
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Raspberry Pi
Supplier page — dfrobot.com
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DFR0918 rpi gpio terminal expansion hat layout V1.0
Document · 1.2 MB · Click any page to view full size
DFR0918 rpi gpio terminal expansion hat schematics V1.0
Schematic · 66.6 KB · Click any page to view full size
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