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qPIO Raspberry Pi IO HAT mounted on a Pi, showing 4 relays and professional push-in terminal blocks.

qPIO: Expand Your Raspberry Pi's Potential.

Introducing our professional-grade I/O expansion module, designed for effortless control and reliable performance. With 4 high-quality relay outputs and 8 versatile inputs, you can easily manage a wide range of devices. All I/O channels are optically isolated for superior protection, ensuring your projects are both powerful and safe.

Jump iconLearn About Our Approach

Goal – What We Wanted

Close-up view of the qPIO Raspberry Pi IO HAT with 8 isolated input and 4 relay output

Our goal was simple: to create a reliable and durable I/O expansion module for the Raspberry Pi. We noticed a gap in the market for a professional-grade yet accessible solution that could be used by both hobbyists and industrial professionals alike. We wanted to build more than just a product; we aimed to provide a trusted solution that empowers you to take your projects to the next level with confidence, no matter the application.

Design Considerations – How We Were Thinking

Form iconFrom Factor

For easy assembly, qUPS has HAT form factor. Simply connect it via the 40 pin header.

Stackablility iconStackability

Pins on the connector are long ones, all can be accessed from the top of the product.

Strong iconReliable connection

Massive, soldered pin header for power and signal connection. Pogo pins are not reliable.

Gear iconZero firmware

Everything is done by hardware.

Handshake iconGPIO communication

Easy programming. Avoid extra load on capacitance limited I2C bus. 12 GPIO ports for communication.

Isolation iconOptical isolation

Optically isolated channels safeguard your Raspberry Pi from electrical noise and damage.

Input types

Each inputs can be level or contact type. Type can be setup only at manufacturing process.

High-Low iconWide input voltage range

3-45V range for level type inputs.

Connector iconHigh quality IO connectors

All IO connectors are high quality, vibration-resistant spring terminals.

Light bulb iconVisual feedback

A dedicated LED shows the real-time ON/OFF status of each relay.

Switch iconVersatile SPDT Relays

Each relay features both Normally Open (NO) and Normally Closed (NC) contacts, letting you choose how to control your circuits.

Parameters – What We Have Designed

Bandage iconPhysical parameters
Form factor
Raspberry Pi HAT
Dimensions
65x56x23 mm + 11mm header
Stackable
Yes
Input iconInputs
Number of input
8
Input types
Contact or Level
Input voltage range
3-45V
Output iconOutputs
Number of outputs
4
Output type
Relay
Relay type
SPDT
Max voltage
250V AC, 30V DC
Max current ("NO")
10A AC, 5A DC
Max current ("NC")
3A
Connector iconConnectors
Connection type
Spring terminal
Vibration resistant
Yes
Communication iconCommunication
Method
GPIO ports
Used GPIO ports for input
8
Used GPIO ports for output
4
Helmet iconSafety
Optical isolation
Yes
Indication iconIndication
Relay state
Yes
Software iconSoftware
Control software
C++ & Python

Documentation – Where you can find more information

Github logoGithub
More information, user manual and control software (C++ & Python) can be found on Github.

Images – How It Looks Like

qPIO Raspberry Pi IO HAT mounted on a Pi, showing 4 relays and professional push-in terminal blocks. Close-up view of the qPIO Raspberry Pi IO HAT with 8 isolated input and 4 relay output Top view of the qPIO Raspberry Pi IO HAT with 8 isolated input and 4 relay output

Resellers – Where can you buy it