IOL HAT Pro - Industrial IoT HAT for Raspberry Pi

Product Overview

The IOL HAT Pro is an industrial IoT expansion board designed for Raspberry Pi that bridges the gap between single-board computers and industrial-grade IO-Link® sensors and devices. It enables seamless integration of ruggedized industrial sensors into Raspberry Pi-based projects.

IO-Link® is a standardized industrial protocol to connect sensors, actuators, and other devices. There are over 20,000 IO-Link device types available in the market. 

Key Features

Hardware Capabilities

• Dual IO-Link Master Ports: Two industrial sensor connection ports per board
• Stackable Design: Support for up to 2 IOL HATs per Raspberry Pi (4 ports total)
• Built-in Power Supply: Powers Raspberry Pi up to 1.8A
• Industrial Connectivity: 24V connection via screw terminal or round connector with industrial-grade voltage filtering
• Robust Transceiver: Based on Analog Devices MAX14819 dual IO-Link master transceiver

Compatibility

• Raspberry Pi Models: Tested with Raspberry Pi 3, 4, and 5
• IO-Link Standard: Compatible with IEC 61131-9 (IO-Link) devices
• Device Support: Works with 20,000+ different industrial sensor types from any manufacturer
• Power Requirements: Supports Class A devices (<500mA power consumption)

Software & Integration

• Open Source: Complete software stack available on GitHub
• Language Agnostic: TCP-based communication works with any programming language supporting TCP connections
• Software Examples: Provided for C/C++ and Python
• Advanced Software: IOL Connect Manager add-on for enhanced functionality (available via Pinetek Networks webpage: www.pinetek-networks.com/iol-connect-manager)
• Easy Integration: Binary TCP interface eliminates the need for IO-Link protocol knowledge

Applications

• Industrial IoT (IIoT) projects
• Smart manufacturing systems
• Environmental monitoring with industrial sensors
• Process automation and control
• Data acquisition from harsh environments

Technical Specifications

• Raspberry Pi connection: Over 40-pin GPIO
• Communication Interface: SPI with GPIO interrupts
• Protocol Support: IO-Link (SDCI) IEC 61131-9 standard
• Connection Type: 4-pin 3,5mm connectors for IO-Link interface, 2-pin 3,5mm/6,3mm round connector for 24V 
• Cable Length: Supports up to 20 meters
• Real-time Capability: Industry-proven I-Link stack from RT-Labs

Scope of delivery

• 1x IOL HAT Pro with 40-pin GPIO connector incl. all required jumpers 
• 2x 4-pin connector for 2xSDCI port
• 4x standoffs incl. nuts and screws
• 1x 2-pin connector for 24 Volt connection

Documentation

Product page on the Pinetek Networks webpage:  www.pinetek-networks.com/iol-hat/

Online manual available at doc.pinetek-networks.com/doku.php?id=iol-hat:start

Note: IO-Link is a registered trademark of PROFIBUS Nutzerorganisation e.V.