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qRecon Relay HAT mounted on Raspberry Pi 5. Shows 4 relays and full setup.

qRecon: The Professional Solution for Safe Control

Unlock your Raspberry Pi's potential with this robust 4-channel relay module. Featuring premium Schrack relays, optical isolation, and configurable GPIOs and Active High and Active Low control, it gives you the confidence and reliability your projects deserve.

Jump iconLearn About Our Approach

Goal – What We Wanted

qRecon: Raspberry Pi Relay HAT - 4 relay, selectable GPIO & Active H/L
Our goal with the qRecon was to create a professional-grade relay module that puts safety and reliability first. We noticed that many existing solutions lack the features needed for demanding projects. We built it to be a robust and flexible tool that you can rely on to control high-power devices with absolute confidence, providing the peace of mind that comes with a truly trusted solution.

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. 4 GPIO ports for communication.
Isolation iconOptical isolation
Optically isolated channels safeguard your Raspberry Pi from electrical noise and damage.
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.
High-Low iconConfigurable Control Logic
Easily switch between Active High and Active Low with a simple jumper setting.
DIP switch iconFlexible GPIO Selection
Choose between two GPIO groups to best fit your project and avoid conflicts with other add-on boards.

Parameters – What We Have Designed

Bandage iconPhysical parameters
Form factor
Raspberry Pi HAT
Dimensions
65x56x23 mm + 11mm header
Stackable
Yes
Output iconOutputs
Number of outputs
4
Output type
Relay
Relay type
SPDT
Max AC voltage
250V
Max DC voltage
28V (10A), 300V (0.5A)
Max NO current
10A
Max NC current
3A
Connector iconConnectors
Connection type
Terminal block
Vibration resistant
No
Communication iconCommunication
Method
GPIO ports
Used GPIO ports
4
GPIO groups
2 options
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

qRecon Relay HAT mounted on Raspberry Pi 5. Shows 4 relays and full setup. qRecon: Raspberry Pi Relay HAT - 4 relay, selectable GPIO & Active H/L Top-down view of qRecon Raspberry Pi HAT showing 4 relays, connectors & electronics.

Resellers – Where can you buy it