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In stock Raspberry Pi compatible

CirkitScape Top HAT for Raspberry Pi projects.

A practical all-in-one Raspberry Pi expansion board that combines GPIO expansion, analog inputs, RS-485 communication, and USB expansion so builders can build faster with less wiring.

★★★★★4.7/5 on Amazon22 reviews30-day refund policy

$45.00

Board-only price. Ships from Alabama. Shipping calculated at checkout.

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Manufacturer Standard Lead Time: 4 - 6 weeks (If Out of Stock)

30-day refund policyBuy with confidence. If it is not the right fit, return it within 30 days.

Python examplesIncludes practical software support for quick bring-up.

STEM readyUseful for labs, automation demos, and Hands-On projects.

Replace a messy stack of modules with one documented board.

Most Raspberry Pi hardware projects need extra GPIO, analog inputs, serial communication, and USB ports. The Top HAT consolidates those needs into one board designed for prototyping, automation, learning, and real-world testing.

ADC

Read analog sensors

Use the 3-channel 12-bit ADC for sensors that Raspberry Pi cannot read directly through GPIO alone.

485

Connect industrial-style devices

Built-in RS-485 support helps students and builders experiment with longer-range wired communication.

I/O

Expand real projects

16 GPIO expansion pins and four USB 2.0 ports reduce module stacking and make builds cleaner.

Product details

Core hardware

ADCADS1015, 12-bit, 3 analog input channels

GPIOMCP23017 I²C GPIO expander, 16 additional I/O lines

USB4x USB 2.0 ports for peripherals and expansion

RS-485MAX485 half-duplex transceiver for long-range serial links

SoftwarePython examples, setup scripts, dashboard app

Compatibility / included

Pi ModelsDesigned for Raspberry Pi 40-pin GPIO boards, including the Pi 5, 4, 3B+, and Zero project setups.

IncludesCirkitScape Top HAT board, USB-C Cable, and Standoffs.

SupportData Sheet, Code Examples, Start-Up Guide, Dashboard App and Product Support Through CirkitScape.

Use CasesSensor stations, Environmental monitoring, RS-485 networks, STEM labs, data logging.

Everything needed to bring the board up fast.

Datasheets, setup scripts, examples, and dashboard tools.

PDFTop HAT Data SheetTechnical overview and board details. GUIDEStart-Up GuideFirst-time setup and bring-up. SCRIPTSetup ScriptInstall dependencies faster. PYTHONCode ExamplesExample projects and tests. APPDashboard AppTest hardware without writing code.

Amazon Reviews

4.7

★★★★★

Simple solution that provides a lower profile build that consumes less power

— Skyler

★★★★★
Excellent option for many Pi projects. Very simple setup, quickly connects to the Pi with included standoffs. Adds loads of extra functionality without the need for additional boards. Good value and versatility by adding...— Rob A.

★★★★★
This expansion board is like a well built tackle box for your Pi hardware setup. The PCB feels securely manufactured, the 40-pin header aligns cleanly with the Pi socket, and the mounting holes are placed for a secure stack build. The board clearly labels RS-485, ADC and GPIO so you know what you’re dealing with.— Endubitably

STEM and classroom fit

A board students can learn from, not just plug in.

The Top HAT fits CirkitScape's open-source/STEM direction: real hardware, visible documentation, practical protocols, and project-based electronics learning.

Learn More

Sensor labsAnalog sensor reading and data collection.

Protocol lessonsI²C, RS-485, GPIO, and USB peripherals.

Automation demosMonitor inputs and control outputs.

Environmental monitoringReal-world environmental monitoring.